WO2018188670A1 - Detection apparatus and terminal device - Google Patents

Detection apparatus and terminal device Download PDF

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Publication number
WO2018188670A1
WO2018188670A1 PCT/CN2018/083219 CN2018083219W WO2018188670A1 WO 2018188670 A1 WO2018188670 A1 WO 2018188670A1 CN 2018083219 W CN2018083219 W CN 2018083219W WO 2018188670 A1 WO2018188670 A1 WO 2018188670A1
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WIPO (PCT)
Prior art keywords
light
lens
image
display screen
hole
Prior art date
Application number
PCT/CN2018/083219
Other languages
French (fr)
Chinese (zh)
Inventor
王帆
胡轶
熊林强
沈奥
王辉
李志勇
Original Assignee
华为技术有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Priority claimed from CN201720946650.4U external-priority patent/CN207489034U/en
Priority claimed from CN201710643113.7A external-priority patent/CN108734073B/en
Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Publication of WO2018188670A1 publication Critical patent/WO2018188670A1/en

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    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F18/00Pattern recognition

Definitions

  • the embodiments of the present application relate to the field of electronic technologies, and in particular, to a detecting device and a terminal device.
  • fingerprint recognition technologies that can be applied to display screens include optical technology, capacitance technology, and ultrasonic technology.
  • optical technology is favored for its advantages of good durability and low cost.
  • the light source since the light source emits initial light in different directions, when there are multiple light sources, the respective outgoing rays that are emitted from the display screen and reach the image sensor overlap each other, thereby causing the image sensor to be blurred.
  • FIG. 1 The initial light emitted by different light sources in multiple light sources is irradiated onto one side of the object through the display screen, and reflected light is reflected by the object to form reflected light at different positions on one side of the object.
  • the formed outgoing light may be irradiated at the same position on the image sensor. Since different outgoing rays represent different fingerprint information, when different outgoing rays are irradiated to the same position, different fingerprint information is superimposed, thereby causing an image. The imaging of the sensor is blurred.
  • the embodiment of the present application provides a detecting device and a terminal device for improving the accuracy of optical recognition under the display screen.
  • an embodiment of the present application provides a detecting apparatus, including: a light emitting component, configured to emit initial light;
  • control component for controlling a propagation direction of the feedback light emitted from the light-transmitting display screen to form an imaging light, wherein the feedback light is at an initial when an object approaches or contacts the display screen The light reflected by the light of the object approaching or contacting the side of the display screen; the image sensor is configured to receive the image light to form the object to approach or contact the display mode The data of the image of the side of the group.
  • control component is used to control the propagation direction of the feedback light, and the crosstalk generated between the different feedback rays can be eliminated to form the imaging light. Therefore, the image sensor can form data for representing a relatively clear image after receiving the imaging light, thereby achieving more accurate texture detection and improving the accuracy of optical recognition under the display screen.
  • control component includes: a lens array for concentrating the feedback ray to form a transmitted ray incident on the image sensor; a light guiding component disposed on the lens array and the image sensor Between, for eliminating crosstalk occurring between transmitted rays emerging from each lens in the lens array.
  • the light guide component eliminates crosstalk occurring between the transmitted light emitted from each lens in the lens array to form imaging light. Therefore, the image sensor can form data for representing a relatively clear image after receiving the imaging light, thereby achieving more accurate texture detection and improving the accuracy of optical recognition under the display screen.
  • the light guiding component comprises: an N-layer opaque layer stacked in a vertical direction, and each of the N opaque layers is provided with an array of through holes.
  • the positions of the through-hole arrays in each of the opaque layers are completely coincident, and the through-hole array includes a first through hole and a second through hole extending through the opaque layer of each layer, where N is an integer;
  • a partition is formed between the first through hole and the second through hole to eliminate crosstalk occurring between transmitted light emitted from the first lens and transmitted light emitted from the second lens.
  • each opaque layer may be a silicon substrate, or may be a layer having other structures, for example, each opaque layer includes a first sub-layer and is vapor-deposited on the upper surface of the first sub-layer. a second sub-layer; wherein the material of the first sub-layer is a light transmissive material, such as a translucent plastic or glass, and the material of the second sub-layer is a material that does not have translucency, such as It is not a light transmissive film and may be a metal film, a black polyester film (PET) or a black rubber layer.
  • PET black polyester film
  • an array of through holes is formed on each opaque layer, and then an opaque layer having an array of through holes is bonded to form a light guiding component. Since the thickness of each opaque layer is thin, it is difficult to punch holes by laser, mechanical embossing, or unprocessed, so that mass production can be achieved.
  • the N is obtained by rounding up the value obtained according to the function of the duty cycle; wherein the function of the duty ratio is 1 and the reciprocal of the difference between the duty ratios,
  • the duty cycle is the ratio of the diameter of the lens in the lens array to the period of the lens of the lens array.
  • the number of layers of the desired opaque layer is determined according to the duty ratio, that is, the duty ratio of the lens in the lens array.
  • the light guiding component includes: an opaque layer, the opaque layer is provided with an array of through holes, and the through hole array includes a first through hole penetrating the opaque layer and a second through hole; wherein the first through hole and the second through hole have a partition therebetween to eliminate between the transmitted light emitted from the first lens and the transmitted light emitted from the second lens Crosstalk that has occurred.
  • the through hole array is formed on the opaque layer, and the first through hole and the second through hole in the through hole array are separated by a light blocking function, thereby eliminating the emission from the first lens.
  • the thickness of the opaque layer is less than or equal to a vertical distance from the optical center of the lens in the lens array to the image sensor such that the first from the lens array Transmitted light emitted from the lens exits through the first through hole to a first region where the projection of the first through hole is on the image sensor, and the transmitted light emitted from the second lens of the lens array passes through the first The second through hole exits to a second area where the projection of the second through hole on the image sensor is located.
  • the thickness of the opaque layer is set to be less than or equal to a vertical distance from the optical center of the lens in the lens array to the image sensor to avoid the transmitted light emitted from the first lens.
  • the first through hole exits to the second region and/or the outgoing light transmitted from the second lens exits through the second through hole to the first region, thereby further eliminating crosstalk occurring between the transmitted light transmitted from the lens.
  • the aperture of the first through hole is smaller than or equal to the diameter of the first lens
  • the aperture of the second through hole is smaller than or equal to the diameter of the second lens
  • the aperture of each through hole in the through hole array is smaller than or equal to the diameter of the lens corresponding to each through hole in the lens array, for example, the aperture of the first through hole is smaller than or equal to the first lens.
  • the diameter of the second through hole is smaller than or equal to the diameter of the second lens, so that the transmitted light transmitted from the second lens is directly incident into the first through hole from the top end of the first through hole, and is transmitted in the first through hole.
  • Crosstalk occurs between the transmitted rays, or transmitted rays transmitted from the first lens are directly incident into the second through holes from the top end of the second through holes, and crosstalk occurs between the transmitted light transmitted in the second through holes.
  • the light guiding component is a fiber optic panel
  • the numerical aperture of the fiber optic panel is less than a preset value, so that the fiber optic panel receives the transmitted light from the lens array at a preset angle range.
  • the preset value is in the lens array The ratio of the diameter of the lens to the distance between the lens array and the fiber optic panel.
  • the numerical aperture of the optical fiber panel is smaller than a preset value, thereby ensuring that the optical fiber panel receives the transmitted light within a preset angle range emitted from the lens array, thereby eliminating crosstalk occurring between different transmitted light.
  • the light emitting component is a light source disposed outside the display screen
  • the detecting device further includes:
  • a collimating component for controlling different light emitted by different light sources included in the light emitting component to illuminate different regions on one side of the object.
  • the illumination range of the initial light emitted by the different light sources included in the light-emitting component can be further controlled by the collimating component, and the control light can be further controlled by the light guiding component to better eliminate the occurrence of light between the light-emitting components.
  • Crosstalk the illumination range of the initial light emitted by the different light sources included in the light-emitting component
  • the collimating assembly includes:
  • a light transmitting portion disposed between the adjacent light blocking portions, the light blocking portion for blocking the initial light from being incident on the pixel electrode of the display screen to control the The initial light is irradiated from the light transmitting portion to a different region on one side of the object from a gap between adjacent pixel electrodes.
  • the light blocking portion blocks the initial light from being irradiated onto the pixel electrode of the display screen, limits the incident angle of the initial light, prevents the initial light from being reflected back to the back surface of the pixel electrode, and is reflected back to the side of the object. Upper, thereby increasing the irradiance of the initial light onto one side of the object.
  • an embodiment of the present application provides a detecting device, where the detecting device includes a control component for controlling a propagation direction of a feedback light emitted from a light-transmitting display screen to form an imaging light, wherein the feedback Light is a light reflected by an image of a side of the display screen that is close to or in contact with an image of the display screen when an object approaches or contacts the display screen; By receiving the imaging ray, data is formed for an image representing the texture of the object approaching or contacting one side of the display module.
  • control component is used to control the propagation direction of the feedback light, and the crosstalk generated between the different feedback rays can be eliminated to form the imaging light. Therefore, the image sensor can form data for representing a relatively clear image after receiving the imaging light, thereby achieving more accurate texture detection and improving the accuracy of optical recognition under the display screen.
  • control component includes: a lens array for concentrating the feedback ray to form a transmitted ray incident on the image sensor; a light guiding component disposed on the lens array and the image sensor Between, for eliminating crosstalk occurring between transmitted rays emerging from each lens in the lens array to form the imaged light.
  • the light guide component eliminates crosstalk occurring between the transmitted light emitted from each lens in the lens array to form imaging light. Therefore, the image sensor can form data for representing a relatively clear image after receiving the imaging light, thereby achieving more accurate texture detection and improving the accuracy of optical recognition under the display screen.
  • the light guiding component comprises: an N-layer opaque layer stacked in a vertical direction, and each of the N opaque layers is provided with an array of through holes.
  • the positions of the through-hole arrays in each of the opaque layers are completely coincident, and the through-hole array includes a first through hole and a second through hole extending through the opaque layer of each layer, where N is an integer;
  • a partition is formed between the first through hole and the second through hole to eliminate crosstalk occurring between transmitted light emitted from the first lens and transmitted light emitted from the second lens.
  • each opaque layer may be a silicon substrate, or may be a layer having other structures, for example, each opaque layer includes a first sub-layer and is disposed on the first sub-layer. a second sub-layer of the surface; wherein the material of the first sub-layer is a light transmissive material, such as a translucent plastic or glass, and the material of the second sub-layer is a material that does not have translucency.
  • the material of the first sub-layer is a light transmissive material, such as a translucent plastic or glass
  • the material of the second sub-layer is a material that does not have translucency.
  • it is not a light transmissive film, and may be a metal film, a black polyester film (PET) or a black rubber layer.
  • the second sub-layer may be vapor-deposited on the upper surface of the first sub-layer by vapor deposition, or may be disposed on the upper surface of the first sub-layer by means of a mask, which is implemented in the present application. There are no restrictions in the examples.
  • an array of through holes is formed on each opaque layer, and then an opaque layer having an array of through holes is bonded to form a light guiding component. Since the thickness of each opaque layer is thin, it is difficult to punch holes by laser, mechanical embossing, or unprocessed, so that mass production can be achieved.
  • the N is obtained by rounding up the value obtained according to the function of the duty cycle; wherein the function of the duty ratio is 1 and the reciprocal of the difference between the duty ratios,
  • the duty cycle is the ratio of the diameter of the lens in the lens array to the period of the lens of the lens array.
  • the number of layers of the desired opaque layer is determined according to the duty ratio, that is, the duty ratio of the lens in the lens array.
  • the light guiding component includes: an opaque layer, the opaque layer is provided with an array of through holes, and the through hole array includes a first through hole penetrating the opaque layer and a second through hole; wherein the first through hole and the second through hole have a partition therebetween to eliminate between the transmitted light emitted from the first lens and the transmitted light emitted from the second lens Crosstalk that has occurred.
  • the through hole array is formed on the opaque layer, and the first through hole and the second through hole in the through hole array are separated by a light blocking function, thereby eliminating the emission from the first lens.
  • the thickness of the opaque layer is less than or equal to a vertical distance from the optical center of the lens in the lens array to the image sensor such that the first from the lens array Transmitted light emitted from the lens exits through the first through hole to a first region where the projection of the first through hole is on the image sensor, and the transmitted light emitted from the second lens of the lens array passes through the first The second through hole exits to a second area where the projection of the second through hole on the image sensor is located.
  • the thickness of the opaque layer is set to be less than or equal to a vertical distance from the optical center of the lens in the lens array to the image sensor to avoid the transmitted light emitted from the first lens.
  • the first through hole exits to the second region and/or the outgoing light transmitted from the second lens exits through the second through hole to the first region, thereby further eliminating crosstalk occurring between the transmitted light transmitted from the lens.
  • the aperture of the first through hole is smaller than or equal to the diameter of the first lens
  • the aperture of the second through hole is smaller than or equal to the diameter of the second lens
  • the aperture of each through hole in the through hole array is smaller than or equal to the diameter of the lens corresponding to each through hole in the lens array, for example, the aperture of the first through hole is smaller than or equal to the first lens.
  • the diameter of the second through hole is smaller than or equal to the diameter of the second lens, so that the transmitted light transmitted from the second lens is directly incident into the first through hole from the top end of the first through hole, and is transmitted in the first through hole.
  • Crosstalk occurs between the transmitted rays, or transmitted rays transmitted from the first lens are directly incident into the second through holes from the top end of the second through holes, and crosstalk occurs between the transmitted light transmitted in the second through holes.
  • the light guiding component is a fiber optic panel
  • the numerical aperture of the fiber optic panel is less than a preset value, so that the fiber optic panel receives the transmitted light from the lens array at a preset angle range.
  • the preset value is in the lens array The ratio of the diameter of the lens to the distance between the lens array and the fiber optic panel.
  • the numerical aperture of the optical fiber panel is smaller than a preset value, thereby ensuring that the optical fiber panel receives the transmitted light within a preset angle range emitted from the lens array, thereby eliminating crosstalk occurring between different transmitted light.
  • the embodiment of the present application provides a terminal device, where the terminal device includes a display having a light transmissive property; and the detecting device of the first aspect is configured to: when an object approaches or contacts the detecting device, Obtaining data for an image representing a texture of a side of the object in proximity or contact with the detecting device; and a processor coupled to the detecting device for converting data of the image into the image, and It is recognized whether the image is a set image.
  • the embodiment of the present application provides a terminal device, where the terminal device includes a display having a light transmissive property; and the detecting device according to the second aspect, when the object is close to or in contact with the display screen Obtaining data for an image of a texture representing a side of the object in proximity or contact with the display screen; and a processor coupled to the detecting means for converting data of the image into the image, And identifying whether the image is a set image.
  • the embodiment of the present application provides a detecting device and a terminal device for improving the accuracy of optical recognition under the display screen.
  • an embodiment of the present application provides a detecting apparatus, comprising: a light emitting component for emitting initial light; and a collimating component for contacting an object on a surface of the object or a light transmissive display screen Controlling, by the display screen, the initial light emitted by the different light-emitting sources in the light-emitting component to be irradiated onto different areas of the surface of the object, and the reflected light formed by the reflection of the initial light through the object passes through
  • the display screen forms a feedback ray; an image sensor for forming data for representing an image of the texture of the surface of the object contacting or near the upper surface by receiving the feedback ray.
  • the direction of propagation of the initial light is controlled by the collimating component, so that the initial light emitted by different light sources in the light-emitting component is irradiated on different areas of the surface of the object, and the regions in different regions do not overlap.
  • Crosstalk is not generated between the reflected rays formed by the initial rays irradiated in different regions after being reflected by the object, and then the reflected light formed by the reflected light passing through the display screen does not crosstalk, so that the image sensor receives the feedback light. It can form data for representing images with clear lines, thereby achieving more accurate texture detection and improving the accuracy of optical recognition under the display.
  • the collimating assembly includes: a light transmitting portion disposed between adjacent light blocking portions, and a light blocking portion for blocking the initial light Irradiation is applied to the pixel electrode of the display screen to control the initial light to be irradiated from the light transmitting portion to a different region of the surface of the object from a gap between adjacent pixel electrodes.
  • the light blocking portion blocks the initial light from being irradiated onto the pixel electrode of the display screen, limiting the incident angle of the initial light, preventing the initial light from being reflected back to the back surface of the pixel electrode, and being unable to illuminate the surface of the object. Upper, thereby increasing the irradiance of the initial light onto the surface of the object.
  • the ratio of the depth to the width of the light transmissive portion is greater than a first predetermined threshold.
  • control of the angle at which the initial light is emitted by different light sources in the light-emitting component can be realized by the setting of the depth and the width of the light-transmitting portion.
  • the light blocking portion is a light blocking block, and a gap between the adjacent light blocking blocks constitutes the light transmitting portion.
  • the light blocking blocks are disposed on the lower surface of the display screen at a certain interval to form a collimating assembly that matches the spacing between adjacent pixel electrodes of the display screen.
  • a light-transmitting block may be filled between the light blocking blocks, which is not limited herein.
  • the collimating assembly includes: an opaque layer, an array of through holes is formed on the opaque layer, the through hole array constitutes the transparent portion, and the opaque portion Other regions on the layer other than the array of vias constitute the light blocking portion.
  • the opaque layer may be disposed on the lower surface of the display screen, and the through hole array is formed on the opaque layer to form the light blocking portion and the light transmitting portion.
  • the collimating assembly includes: an N-layer opaque layer stacked in a vertical direction, and each of the N opaque layers is provided with an array of through holes.
  • the positions of the through-hole arrays in each of the opaque layers are completely coincident, and the array of through holes in the N-layer opaque layer constitutes the transparent portion, and the N-layer opaque layer is Other regions than the via array constitute the light blocking portion, and N is an integer greater than 2.
  • the N-layer opaque layer of the through-hole array may be stacked in a vertical direction of the lower surface of the display screen to form a light-blocking portion and a light-transmitting portion.
  • each opaque layer may be a silicon substrate, or may be a layer having other structures, for example, each opaque layer includes a first sub-layer and is vapor-deposited on the lower surface of the first sub-layer. a second sub-layer; wherein the material of the first sub-layer is a light transmissive material, such as a translucent plastic or glass, and the material of the second sub-layer is a material that does not have translucency, such as It is not a light transmissive film and may be a metal film, a black polyester film (PET) or a black rubber layer.
  • PET black polyester film
  • the image sensor is uniformly disposed in each of the spaced regions between adjacent light sources in the light emitting component; or the image sensor is disposed directly under the light emitting component .
  • the above is to give the setting positions of several image sensors, for example, each of the spaced regions uniformly disposed between adjacent light sources, or disposed directly under the light-emitting component, which is not limited herein.
  • an embodiment of the present application provides a detecting apparatus, including: a light emitting component, configured to emit initial light;
  • a transmissive display screen comprising a cover glass and a substrate glass disposed in parallel; for controlling the emission of different illumination sources in the illumination assembly when the surface of the object contacts or is adjacent to the upper surface of the display screen
  • the initial light is transmitted through the cover glass to different regions of the surface of the object, and the reflected light formed by the reflection of the initial light through the object passes through the substrate glass to form feedback light; the image sensor is used for By receiving the feedback ray, data for representing an image of the texture of the surface of the object contacting or near the upper surface is formed.
  • the direction of propagation of the initial light is controlled by the display screen, so that the initial light emitted by different light sources in the light-emitting component is irradiated on different regions on the surface of the object, and the regions in different regions do not overlap each other.
  • Crosstalk is not generated between the reflected light rays reflected by the objects in different areas, and then the reflected light formed by the reflected light does not crosstalk between the reflected light, so that the image sensor can form after receiving the feedback light. It is used to represent the data of the image with clearer texture, thus achieving more accurate texture detection and improving the accuracy of optical recognition under the display.
  • the substrate glass comprises:
  • a light transmitting portion disposed between the adjacent light blocking portions, the light blocking portion for blocking the initial light from being incident on the pixel electrode of the display screen to control the The initial light is irradiated from the light transmitting portion from a gap between adjacent pixel electrodes to different regions of the surface of the object.
  • the light blocking portion blocks the initial light from being irradiated onto the pixel electrode of the display screen, limiting the incident angle of the initial light, preventing the initial light from being reflected back to the back surface of the pixel electrode, and being unable to illuminate the surface of the object. Upper, thereby increasing the irradiance of the initial light onto the surface of the object.
  • the embodiment of the present application provides a terminal device, including: a display having a light transmissive property; and the detecting device according to the first aspect, configured to obtain an object when approaching or contacting the display screen Data for an image representing a texture of a surface of the object in proximity or contact with the display screen; a processor coupled to the detecting means for converting data of the image into the image and identifying Whether the image is a set image.
  • the terminal device further includes: a sensor coupled to the processor for detecting a touch operation, the touch operation for activating a detection function of the detecting device; After the detecting function of the device is activated, the processor is further configured to: determine a touch position of the touch operation; and control a light source at a position corresponding to the touch position included in the light emitting component of the detecting device In the illuminated state, the other light sources in the lighting assembly are in a closed state.
  • the processor is further configured to control, according to the touch position of the touch operation, a lighting state of the light source in the light emitting component, that is, the light source at the position corresponding to the touch position is in a lighting state, and the light emitting component is in the light emitting component.
  • the other light sources are off to reduce the power consumption of the terminal device.
  • the embodiment of the present application provides a terminal, comprising: the detecting device according to the second aspect, configured to: when an object is in proximity or contact with the detecting device, obtain the object and the Data for detecting an image of the texture of the surface of the device in proximity or contact; a processor coupled to the detection device for converting data of the image into the image and identifying whether the image is a set image.
  • the direction of propagation of the initial light is controlled by the collimating component, so that the initial light emitted by different light sources in the light-emitting component is irradiated on different areas of the surface of the object, and the regions in different regions do not overlap.
  • Crosstalk is not generated between the reflected rays formed by the initial rays irradiated in different regions after being reflected by the object, and then the reflected light formed by the reflected light passing through the display screen does not crosstalk, so that the image sensor receives the feedback light. It can form data for representing images with clear lines, thereby achieving more accurate texture detection and improving the accuracy of optical recognition under the display.
  • 1 is a schematic view showing blurring of optical grain imaging in the prior art
  • FIG. 2 is a schematic structural diagram of a detecting apparatus according to an embodiment of the present application.
  • FIG. 3 is a schematic diagram of a light emitting component in a detecting device according to an embodiment of the present application.
  • FIG. 5 is a schematic structural diagram of a collimating component in a detecting device according to an embodiment of the present disclosure
  • FIG. 6 is a schematic structural diagram of a light guiding component in a detecting device according to an embodiment of the present disclosure
  • FIG. 7 is another schematic structural diagram of a light guiding component in a detecting device according to an embodiment of the present disclosure.
  • FIG. 8 is a schematic diagram of a light transmission path when a light guiding component is a fiber optic panel in a detecting device according to an embodiment of the present disclosure
  • FIG. 9 is another schematic structural diagram of a light guiding component in a detecting device according to an embodiment of the present disclosure.
  • FIG. 10 is another schematic structural diagram of a light guiding component in a detecting device according to an embodiment of the present disclosure.
  • FIG. 11 is a schematic structural diagram of another detecting apparatus according to an embodiment of the present application.
  • FIG. 12 is a schematic structural diagram of a terminal device according to an embodiment of the present disclosure.
  • FIG. 13 is a schematic structural diagram of another terminal device according to an embodiment of the present application.
  • FIG. 14 is a schematic structural view of a display module in the prior art
  • FIG. 15 is a schematic structural diagram of a detecting apparatus according to an embodiment of the present application.
  • 16 is a schematic diagram of an optical path of a feedback light emitted from a display screen according to an embodiment of the present application.
  • FIG. 17 is a schematic structural diagram of a collimating component according to an embodiment of the present application.
  • FIG. 18 is a schematic structural diagram of a collimating component according to an embodiment of the present application.
  • FIG. 19 is a schematic structural diagram of another collimating component according to an embodiment of the present disclosure.
  • FIG. 20 is a schematic structural diagram of another collimating component according to an embodiment of the present disclosure.
  • FIG. 21 is a schematic diagram of a manner of setting an image sensor in a detecting device according to an embodiment of the present disclosure
  • FIG. 22 is a schematic diagram of a manner of setting an image sensor in a detecting device according to an embodiment of the present disclosure
  • FIG. 23 is a schematic structural diagram of another terminal device according to an embodiment of the present application.
  • FIG. 24 is a schematic structural diagram of a substrate glass of a display screen according to an embodiment of the present application.
  • FIG. 25 is a schematic structural diagram of a terminal device according to an embodiment of the present disclosure.
  • FIG. 26 is a schematic structural diagram of another terminal device according to an embodiment of the present application.
  • an embodiment of the present application provides a detecting apparatus for achieving more accurate identification.
  • the detection device comprises:
  • the control component 201 is configured to control a propagation direction of the feedback light emitted from the light-transmitting display screen to form an imaging light, wherein the feedback light is an illumination of the initial light when an object approaches or contacts the display screen Light that is reflected by an object that is near or in contact with the grain of one side of the display screen;
  • the image sensor 202 is configured to form data for indicating an image of the texture of the object approaching or contacting one side of the display module by receiving the imaging light.
  • control component 201 controls the propagation direction of the feedback light, and the crosstalk generated between the different feedback rays can be eliminated, so that the image sensor 202 can form an image for indicating a clear texture after receiving the imaging light.
  • the data in turn, achieves more precise texture detection and improves the accuracy of optical recognition under the display.
  • the light emitting component 200 is a light source disposed outside the display screen.
  • the light-emitting assembly 200 may be an array light source disposed directly under the lower surface of the display screen.
  • the array light source may be composed of an LED light source, or may be composed of a laser light source, or may be composed of an infrared light source.
  • the area where the array light source is disposed is the area for detecting the texture on the detecting device, in which the light sources are arranged at equal intervals to form an array, for example, a 5 ⁇ 4 array, please refer to FIG. 3.
  • the display screen has light transmissivity.
  • OLED Organic Light-Emitted Diode
  • LED Light-Emitted Diode
  • FOLED Flexible OLED
  • the display screen adopts an OLED as an example.
  • the entire structural layer includes: a cover glass 400; a polarizer 401 is disposed on the cover glass 400 through an optical adhesive; and the package glass 402 is disposed on the polarizer 401.
  • a cathode 403 disposed on a lower surface of the package glass 400; a light-emitting layer 404 disposed on a lower surface of the cathode 403; an anode 405 disposed on a lower surface of the light-emitting layer 404, and a base glass 406, wherein the cathode 403 and the anode
  • the intersection of 405 forms a pixel, and the electrode pair composed of the cathode 403 and the anode 405 at the corresponding position of each pixel is a pixel electrode, and a gap is formed between adjacent pixel electrodes in the pixel electrode.
  • the detecting device further includes a collimating component 500 for controlling the initial light. Irradiation range.
  • an initial ray incident on the display screen from a predetermined range of angles can be obtained, that is, the area where the predetermined angle range covered by the initial light illuminating on one side of the object is controlled.
  • the initial light emitted by the first light source is processed by the collimating component 500 and then incident on the display screen from a predetermined angle range to illuminate the first area on one side of the object.
  • the initial light emitted by the second light source is processed by the collimating assembly 500 to enter the display screen from a predetermined range of angles, illuminating a second region on one side of the object, the first region and the second region not overlapping.
  • the collimating assembly 500 includes a light transmitting portion and a light blocking portion.
  • the implementation of the light transmitting portion and the light blocking portion includes, but is not limited to, the following two, which are separately described below.
  • a light blocking layer is disposed on the lower surface of the display screen, and a through hole array is formed on the light blocking layer, wherein the through hole is a light transmitting portion, and the other portion of the light blocking layer except the through hole is a light blocking portion
  • the collimating assembly 500 includes a light blocking layer and an array of through holes formed in the light blocking layer. The initial light passes through the through holes in the through hole array, and the gap between the adjacent pixel electrodes corresponding to the through holes is transmitted through the display screen to different areas on one side of the object.
  • the material of the light blocking layer may be an opaque material, such as a black plastic film, a silicon wafer or a metal foil.
  • a light blocking block is disposed on the lower surface of the display screen, wherein the light blocking block is the light blocking portion, and the gap between the adjacent light blocking blocks is the light transmitting portion, that is, in the mode B, the collimation Assembly 500 includes a gap between the light blocking block and the adjacent light blocking block.
  • the initial light passes through the gap between the adjacent light blocking blocks in the light blocking block, and the gap between the adjacent pixel electrodes corresponding to the gap between the adjacent light blocking blocks is transmitted to one side of the object through the display screen. different regions.
  • the pixel electrode of the display screen since the pixel electrode of the display screen has strong opacity, and the back surface of the pixel electrode, that is, the side of the pixel electrode facing the lower surface of the display screen, is highly reflective, that is, irradiated to the back surface of the pixel electrode.
  • the initial light will be strongly reflected. Therefore, a light blocking portion is formed at the pixel electrode, so that the initial light is incident from the light transmitting portion between the adjacent light blocking portions, which limits the incident angle of the incident light and avoids the initial light irradiation. After being reflected to the back side of the pixel electrode, it is reflected back and cannot enter the display screen, thereby increasing the irradiation rate of the initial light to the side of the object.
  • the initial light is irradiated to one side of the object, and the reflected light formed by the object is reflected by the display screen to form a feedback light. Since crosstalk may occur between the feedback light, in order to avoid crosstalk between the feedback light, The direction of propagation of the feedback ray is controlled by control component 201 to form imaging ray.
  • control component 201 includes:
  • a lens array for collecting feedback light to form a transmitted light of the incident image sensor 202;
  • a light directing assembly is disposed between the lens array and image sensor 202 for eliminating crosstalk occurring between transmitted light emerging from each lens in the array of lenses to form imaged light.
  • a lens array is used to focus the received feedback light.
  • the volume of the detecting device is limited. If the thickness of the detecting device is to be within a certain range, the thickness of the lens is also within a certain range.
  • the thickness of the lens is constant, the shorter the focal length of the lens and the smaller the diameter of the lens, the smaller the angle of the lens, the smaller the angle of the lens to receive the emitted light, so that the lens can be received from the display.
  • a beam array is required to emit light at any angle and to converge the outgoing light.
  • the gap between adjacent lenses in the lens array is the same, and the diameter of each lens in the lens array is the same, and the focal length of each lens is also the same.
  • the diameter of each lens included in the lens array is within a preset diameter range, for example, the preset diameter ranges from [5 micrometers (um), 600 um], wherein the processing precision and image of the lens are taken into consideration. Resolution, the diameter of the lens can be specifically 50um.
  • the focal length of each lens included in the lens array is within a preset focal length range, for example, the preset focal length range is [20 um, 800 um], wherein the focal length of the lens may be specifically considered in consideration of the processing precision of the lens and the resolution of the image. It is 50um.
  • the material of the lens included in the lens array may be resin, plastic, or glass.
  • the transmitted light transmitted from the lens array is transmitted to the image sensor 202 through the light guiding component.
  • the implementation manner of the light guiding component includes, but is not limited to, the following three types, which are respectively introduced below.
  • the array of via holes opened on the light blocking layer is hereinafter referred to as a first via array.
  • the light guiding component comprises: an opaque layer, and the opaque layer is provided with an array of through holes.
  • the array of through holes formed in the opaque layer is referred to as a second through hole array, and the second through hole array includes through holes.
  • a first through hole and a second through hole of the optical layer wherein the first through hole and the second through hole have a partition to eliminate transmitted light emitted from the first lens and emitted from the second lens Crosstalk that occurs between transmitted rays.
  • the light guiding component is an opaque layer having an array of second via holes.
  • the material of the opaque layer may be a black plastic film, a silicon wafer, a metal foil, or the like.
  • the second via array may be opened on the opaque layer by laser, mechanical embossing, or micro-nano processing.
  • the second through-hole array includes a first through-hole and a second through-hole, and of course, a third through-hole and a fourth through-hole, which are not limited in the embodiment of the present application.
  • the arrangement positions of the through holes in the second through hole array are in one-to-one correspondence with the arrangement positions of the lenses in the lens array.
  • "corresponding" means that transmitted light transmitted from a certain lens is emitted from a through hole corresponding to the lens.
  • the first through hole corresponds to the first lens, that is, the control is from the first lens.
  • the transmitted transmitted light is emitted from the first through hole
  • the second through hole corresponds to the second lens, that is, the transmitted light transmitted from the second lens is controlled to exit from the second through hole.
  • the first through hole and the second through hole included in the through hole array are separated, and the first through hole and the second through hole are separated. Since the opaque layer can block light, the partition can also block light. Thereby, crosstalk between the transmitted light transmitted from the first lens and the transmitted light transmitted through the lens is avoided.
  • the thickness of the opaque layer is less than or equal to the vertical distance from the optical center of the lens to the image sensor 202.
  • the aspect ratio of the via hole in the second via array is greater than a preset value, for example, 3:1, 5:1, or 10:1, wherein the aspect ratio of the via is the depth of the via and the aperture
  • the ratio that is, the ratio of the thickness of the opaque layer to the aperture.
  • the transmitted light transmitted from the first lens is emitted through the first through hole to the first region where the projection of the first through hole on the image sensor 202 is located.
  • the transmitted light transmitted by the second lens is emitted through the second through hole to the second region where the projection of the second through hole on the image sensor 202 is located, so that the transmitted light transmitted from the first lens is prevented from exiting through the first through hole to the second region and / or transmitted light transmitted from the second lens is emitted to the first region through the second through hole, so that crosstalk between the transmitted light transmitted from the lens can be further eliminated.
  • the aperture of each of the through holes in the second through hole array is smaller than or equal to the diameter of the lens corresponding to each of the through holes in the lens array, for example, the first pass
  • the aperture of the hole is smaller than or equal to the diameter of the first lens
  • the aperture of the second through hole is smaller than or equal to the diameter of the second lens, so as to prevent the transmitted light transmitted from the second lens from directly entering the first pass from the top end of the first through hole.
  • Crosstalk occurs between the holes and the transmitted light transmitted in the first through holes.
  • each through hole in the second through hole array is required to correspond to one pixel, so that the aperture of each through hole in the second through hole array is smaller, and
  • the depth of each of the through holes included in the second via array will be deeper, that is, the aspect ratio of the through holes will be larger.
  • the second via array is fabricated by laser, mechanical imprinting, or micromachining.
  • the difficulty of these processing methods tends to increase as the aspect ratio of the via increases. It is not conducive to mass production.
  • the embodiment of the present application proposes the implementation of the light guiding component. Referring to FIG. 7, the optical fiber panel is used to eliminate the crosstalk between the transmitted rays of different lenses.
  • the light guiding component is a fiber optic panel, and the numerical aperture of the fiber optic panel is less than a preset value, so that the fiber optic panel receives the transmitted light from the lens array at a preset angle range to eliminate the transmitted light emitted from the first lens of the lens array and Crosstalk occurring between transmitted rays emerging from the second lens of the lens array.
  • the preset value is obtained according to the diameter of any one of the lenses included in the lens array and the distance between any one of the lens arrays and the fiber optic panel.
  • the fiber optic panel includes a core and a cladding.
  • the wire diameter of the core is obtained by the magnification required for the lens in the lens array and the resolution required for the texture recognition. For example, when the resolution is 500 pixels and the magnification of the lens array is 2:1, the single pixel of the image sensor 202 cannot exceed 25 um at the maximum, and the single pixel of the image sensor 202 needs at least 4-6 cores. For example, if four are used, the core diameter of the core is about 6um.
  • the numerical aperture of the optical fiber panel is smaller than a preset value, so that the optical fiber panel receives the transmitted light transmitted from the lens array within a preset angle range.
  • NA the numerical aperture of the fiber optic panel
  • L the distance between the lens array and the fiber optic panel.
  • the numerical aperture of the fiber optic panel is related to the refractive index of the core and the refractive index of the cladding.
  • the difference between the refractive index of the core and the refractive index of the cladding is also small.
  • the numerical aperture of the fiber optic panel is 0.14, the difference between the refractive index of the core and the refractive index of the cladding is 0.01; when the numerical aperture of the optical fiber panel is 0.15, the refractive index and cladding of the core The difference between the refractive indices is 0.02 or the like.
  • the transmitted light of the lens is incident from the first end surface of the optical fiber panel at an incident angle ⁇ 0
  • the refracted light is refracted to be incident on the first interface of the core. If the incident angle ⁇ 0 of the refracted ray at the first interface is greater than the critical angle ⁇ c , the refracted ray will be totally reflected at the first interface, and the totally reflected ray is incident on the second interface of the core opposite the first interface And total reflection occurs on the second interface.
  • the condition that the transmitted light is totally reflected in the optical fiber panel is:
  • n 0 is an absolute refractive index of air
  • n 1 is a refractive index of the core
  • n 2 is a refractive index of the cladding
  • the incident angle ⁇ 0 of the transmitted light can be calculated to be 9.9°. That is, the refracted ray formed by the incident light having an incident angle smaller than ⁇ 0 after being incident from the first end surface of the optical fiber panel will be totally reflected at the first interface, and the refracted light is transmitted without loss, and exits from the second end surface of the optical fiber panel; When the incident angle is larger than ⁇ 0 , the refracted light formed by the transmitted light from the first end face of the optical fiber panel is refracted again at the first interface, and the refracted refracted ray is incident on the cladding.
  • the refraction refracted light may be eliminated by adding an absorption wire to the cladding layer, or a light blocking layer may be added on the outer side of the cladding layer, for example, a light blocking layer made of polyacrylate. Used to eliminate light from the cladding.
  • a light blocking layer made of polyacrylate.
  • each through hole in the second through hole array is required to correspond to one pixel, so that the aperture of each through hole in the second through hole array is smaller, and
  • the depth of each of the through holes included in the second via array will be deeper, that is, the aspect ratio of the through holes will be larger.
  • the second via array is fabricated by laser, mechanical imprinting, or micromachining.
  • the difficulty of these processing methods is often the same as the aspect ratio of the via. The increase is increasing, which is not conducive to mass production.
  • the embodiment of the present application proposes the third implementation of the light guiding component, that is, the N-layer opaque layer stacked in the vertical direction is used to eliminate the crosstalk between the transmitted rays of different lenses.
  • the light guiding component comprises: an N-layer opaque layer stacked in a vertical direction, and each of the opaque layers of the N-layer opaque layer is provided with a through-hole array, and the through-hole array formed by each opaque layer The positions of the holes are completely coincident.
  • the array of through holes each of the opaque layers is referred to as a third via array, and the third via array includes third through holes and fourth through holes penetrating each opaque layer.
  • N is an integer;
  • the third through hole and the fourth through hole have a partition to eliminate crosstalk occurring between the transmitted light emitted from the first lens and the transmitted light emitted from the second lens.
  • each of the opaque layers of the N-layer opaque layer is provided with a third via array, the arrangement positions of the through holes in the third via array and the arrangement positions of the lenses in the lens array.
  • corresponding means that transmitted light transmitted from a certain lens is emitted from a through hole corresponding to the lens.
  • the third through hole and the fourth through hole in the third through hole array, the first lens and the second lens in the lens array are exemplified, and the third through hole corresponds to the first lens, that is, the control is from the first lens
  • the transmitted transmitted light is emitted from the third through hole
  • the fourth through hole corresponds to the second lens, that is, the transmitted light projected from the second lens is controlled to exit from the fourth through hole.
  • N is obtained by the diameter of the lens in the lens array and the period of the lens array, for example, among them.
  • p is the period of the lens array.
  • the total thickness of the light control layer disposed in the N layer stack is less than or equal to the optical center of the lens to the image sensor 202. The vertical distance between them.
  • the aperture of each of the through holes in the third through hole array is smaller than or equal to the diameter of the lens corresponding to each of the through holes in the lens array, for example, the third pass
  • the aperture of the hole is smaller than or equal to the diameter of the first lens
  • the aperture of the fourth through hole is smaller than or equal to the diameter of the second lens, so as to prevent the transmitted light transmitted from the second lens from directly entering the third pass from the top end of the third through hole.
  • Crosstalk occurs between the holes and the transmitted light transmitted in the third through holes.
  • the implementation manner of the N-layer opaque layer includes, but is not limited to, the following two types. The two implementation manners are respectively introduced below.
  • each of the opaque layers of the N-layer opaque layer includes a first sub-layer and a second sub-layer evaporated on the upper surface of the first sub-layer, wherein the material of the first sub-layer is a light transmissive material, such as a light transmissive glass or plastic, etc.
  • the second sublayer material is an opaque material, such as an opaque film, which may be a metal film, a black polyester film (Polyseter Film, PET) or Black rubber layer.
  • the formation of the via array on each opaque layer includes, but is not limited to, the following two modes:
  • a second sub-layer is evaporated on the first sub-layer of each layer by an evaporation process, and a third via array is formed on the second sub-layer.
  • a mask may be first disposed on each of the first sub-layers, wherein the mask is provided with at least two sub-regions, and at least two sub-regions have gaps between adjacent sub-regions, at least The second sub-layer is evaporated on the two sub-areas. Then, the mask is removed to obtain an opaque layer in which the third via array is disposed, and then the opaque layers provided with the third via array are stacked and stacked in the vertical direction.
  • the third via layer array is formed by laser, mechanical embossing, or micromachining on a thin second sub-layer, or a third via array is formed through a mask, as compared with The thicker opaque layer is perforated, and the processing difficulty is much lower, which is more suitable for mass production.
  • an N-layer opaque layer such as a silicon substrate.
  • a third via array is formed on each of the opaque layers, and the third via array can be formed by laser, mechanical imprinting, or micromachining.
  • the light control layers on which the third through hole array is opened are stacked in the vertical direction by bonding. Since the light guiding component comprises an N-layer opaque layer, the thickness of each opaque layer is thinner than the thickness of the opaque layer in the implementation mode 1 of the light guiding component, and then laser, mechanically embossed, or The difficulty of punching when punching is reduced by micromachining and the like.
  • the imaging light formed by the transmitted light transmitted through the light guiding component will be incident on the image sensor 202 to form data for representing the image of the texture.
  • the operation mode of the image sensor 202 will be described by taking a fingerprint as a fingerprint and forming a texture image as a fingerprint image.
  • the image sensor 202 includes an image sensing layer and an image chip, and the image sensing layer and the image chip can be connected by a flexible circuit board.
  • the image sensing layer converts the formed fingerprint image into an electrical signal, and sends the electrical signal to the image chip through the flexible circuit board, and the image chip amplifies and converts the received electrical signal, and outputs the digital fingerprint image.
  • the image chip and the processor end communicate using a Serial Peripheral Interface (SPI) or an Inter-Integrated Circuit (I2C) interface.
  • SPI Serial Peripheral Interface
  • I2C Inter-Integrated Circuit
  • the image sensing layer may be a Charge-coupled Device (CCD) or a Complementary Metal Oxide Semiconductor (CMOS) image sensor 202.
  • CCD Charge-coupled Device
  • CMOS Complementary Metal Oxide Semiconductor
  • the fingerprint image sensing layer may adopt a large-area image sensor 202, for example, a large-area image sensor 202 using an organic material as a photosensitive medium, and specifically, organic printing photoelectric A detector (Organic Printed Photodetecor, OPD) is deposited on a back sheet of a plastic thin film transistor (TFT) to realize large-area image sensing; or a large-area image sensor 202 using an amorphous silicon glass substrate.
  • OPD Organic Printed Photodetecor
  • TFT plastic thin film transistor
  • photodiodes and thin film transistors are used as optical sensing units, and glass or plastic is used as a substrate.
  • the propagation direction of different feedback rays is controlled by the control component 201, that is, for eliminating crosstalk generated between the feedback rays, it can be ensured that after the image sensor 202 receives the imaging light, it is formed for The data representing the image of the clear lines, in order to achieve more accurate texture detection, improve the accuracy of optical recognition under the display.
  • an embodiment of the present application provides a detecting apparatus, including:
  • control component 1100 configured to control a propagation direction of the feedback light emitted from the light-transmitting display screen to form an imaging light, wherein the feedback light is when the object approaches or contacts the display screen, The light reflected by the grain of the side of the display screen when the object approaches or contacts the illumination of the initial light emitted by the display screen;
  • the image sensor 1101 is configured to form data for indicating an image of a texture of the object approaching or contacting one side of the display module by receiving the imaging light.
  • control component 1100 controls the propagation direction of the feedback light, and the crosstalk generated between the different feedback rays can be eliminated, so that the image sensor 1101 can form an image for indicating a clear texture after receiving the imaging light.
  • the data in turn, achieves more precise texture detection and improves the accuracy of optical recognition under the display.
  • the initial light of the detecting device is emitted by the light emitting layer of the light-transmitting display screen.
  • the display screen may be an Organic Light-Emitted Diode (OLED), a Light-Emitted Diode (LED), or a Flexible Organic Light Emitting Diode (Flexible). OLED, FOLED), etc.
  • OLED Organic Light-Emitted Diode
  • FOLED Flexible Organic Light Emitting Diode
  • the display screen is introduced by taking OLED as an example.
  • the material of the light-emitting layer comprises at least one host material and at least one guest doping material
  • the host material may be a P-type material, that is, a hole-type material, or an N-type material, that is, an electronic type material.
  • the guest doping material may be a phosphorescent material or a fluorescent material.
  • control component 1100 and the image sensor 1101 is the same as that of the control component 201 and the image sensor 202 in the first aspect, and details are not described herein again.
  • the embodiment of the present application provides a terminal device, including:
  • the detecting device 1201 for obtaining data of an image indicating a texture of a side of the object close to or in contact with the display screen 1200 when an object approaches or contacts the display screen 1200;
  • the processor 1202 is coupled to the detecting device 1201 for converting data of the image into an image and identifying whether the image is a set image.
  • the terminal device may be a mobile terminal device, including a mobile terminal device, a mobile terminal device computer, a portable, handheld, computer built-in or vehicle-mounted mobile device, smart wearable Equipment, etc.
  • a mobile terminal device including a mobile terminal device, a mobile terminal device computer, a portable, handheld, computer built-in or vehicle-mounted mobile device, smart wearable Equipment, etc.
  • mobile phones tablet computers (PADs), personal digital assistants (PDAs), point of sales (POS), in-vehicle computers, smart watches, smart helmets, smart glasses, or smart bracelets, etc.
  • PDAs personal digital assistants
  • POS point of sales
  • in-vehicle computers smart watches, smart helmets, smart glasses, or smart bracelets, etc.
  • the processor 1202 receives the data for representing the fingerprint image
  • the data of the fingerprint image is converted into a fingerprint image
  • the feature points of the fingerprint image are extracted
  • the extracted feature points and the pre-saved feature points are extracted.
  • Perform matching to obtain the matching degree between the extracted feature points and the pre-saved feature points.
  • the matching degree is greater than the preset value, for example, 90%
  • the matching is successful
  • the matching degree is less than the preset value
  • the matching fails.
  • the processor 1202 outputs a prompt message, for example, outputting a voice prompt “Please re-enter the fingerprint”, or prompting the fingerprint matching failure by flashing the light.
  • the processor 1202 may be a general-purpose central processing unit or an application specific integrated circuit (ASIC), and may be one or more integrated circuits for controlling program execution, and may be field-programmable.
  • ASIC application specific integrated circuit
  • the hardware circuit developed by the Field Programmable Gate Array (FPGA) can be a baseband processor.
  • the terminal device further includes:
  • the sensor 1203 is configured to detect a touch operation for activating the detecting function of the detecting device 1201.
  • the touch operation may be a pressing operation or a sliding operation.
  • the detection function of the detecting device 1201 is activated.
  • the processor 1202 is further configured to:
  • the light source at the position corresponding to the touch position included in the light-emitting component of the detecting device 1201 is controlled to be in a lighting state, and the other light sources in the light-emitting component are in a closed state.
  • the senor 1203 may be a pressure sensor or a gravity sensor.
  • the light emitting component includes a first light source, a second light source, a third light source, and a fourth light source.
  • the touch position is the first in the fingerprint identification area on the display screen 1200 In a region, the first light source and the second light source in the control light-emitting component are turned on, and the third light source and the fourth light source are turned off; when the touch position is the second region in the fingerprint recognition area on the display screen 1200, the light-emitting component is controlled
  • the third light source and the fourth light source are turned on, and the first light source and the second light source are turned off.
  • part of the light sources in the control light-emitting component are in an on state for emitting an initial light source, and other parts of the light source in the light-emitting assembly are controlled to be in a closed state to reduce power consumption of the terminal device.
  • the embodiment of the present application provides a terminal device, including:
  • the detecting device 1301 for obtaining an image of a texture indicating a side of the object in proximity or contact with the display screen 1300 when an object approaches or contacts the display screen 1300 data;
  • a processor 1302 is coupled to the detecting means 1301 for converting data of the image into the image and identifying whether the image is a set image.
  • the terminal device may be a mobile terminal device, including a mobile terminal device, a mobile terminal device computer, a portable, handheld, computer built-in or vehicle-mounted mobile device, smart wearable Equipment, etc.
  • a mobile terminal device including a mobile terminal device, a mobile terminal device computer, a portable, handheld, computer built-in or vehicle-mounted mobile device, smart wearable Equipment, etc.
  • mobile phones tablet computers (PADs), personal digital assistants (PDAs), point of sales (POS), in-vehicle computers, smart watches, smart helmets, smart glasses, or smart bracelets, etc.
  • PDAs personal digital assistants
  • POS point of sales
  • in-vehicle computers smart watches, smart helmets, smart glasses, or smart bracelets, etc.
  • the processor 1302 after the processor 1302 receives the data of the fingerprint image, the data of the fingerprint image is converted into a fingerprint image, the feature points of the fingerprint image are extracted, and the extracted feature points are matched with the pre-saved feature points. Obtaining the matching degree between the extracted feature points and the pre-saved feature points.
  • the matching degree is greater than the preset value, for example, 90%, the matching is successful, and when the matching degree is less than the preset value, the matching fails, and the matching is performed.
  • the processor 1302 Upon failure, the processor 1302 will output a prompt message, for example, outputting a voice prompt "Please re-enter the fingerprint", or flashing the light to indicate that the fingerprint matching failed.
  • the processor 1302 may be a general-purpose central processing unit or an application specific integrated circuit (ASIC), and may be one or more integrated circuits for controlling program execution, and may be field-programmable.
  • ASIC application specific integrated circuit
  • the hardware circuit developed by the Field Programmable Gate Array (FPGA) can be a baseband processor.
  • the display screen can be an Organic Light-Emitted Diode (OLED), a Light-Emitted Diode (LED), or a Flexible OLED (FOLED).
  • OLED is taken as an example for description.
  • the entire structural layer includes: a cover glass 200; a polarizer 201 is disposed on the cover glass 200 through an optical adhesive; and the package glass 202 is disposed under the polarizer 201.
  • a surface a cathode 203 disposed on a lower surface of the package glass 202; a light emitting layer 204 disposed on a lower surface of the cathode 203; an anode 205 disposed on a lower surface of the light emitting layer 204, and a substrate glass 206, wherein the cathode 203 and the anode 205
  • the intersections form pixels, and the electrode pair composed of the cathode 203 and the anode 205 at the corresponding position of each pixel is a pixel electrode, and a gap is formed between adjacent pixel electrodes in the pixel electrode.
  • a detection device is provided in the embodiment of the present application, including:
  • the collimating component 301 is configured to control the initial light emitted by the different illuminating light sources in the illuminating component 300 to illuminate the object through the display screen when the surface of the object is in contact with or close to the upper surface of the transmissive display screen On different areas of the surface, the reflected light formed by the reflection of the initial light through the object forms a feedback light through the display screen;
  • the image sensor 302 is configured to form data for representing an image of a texture of a surface of an object contacting or approaching the upper surface according to the feedback ray.
  • the direction of propagation of the initial light is controlled by the collimating component 301, so that the initial light emitted by different light sources in the light-emitting component 300 is irradiated on different regions on the surface of the object, and the regions in different regions are not The overlapping, so that the reflected light formed by the light reflected in different regions is not crosstalked, and then the reflected light formed through the display screen does not crosstalk, so that the image sensor 302 receives the feedback.
  • data for representing a relatively clear image can be formed, thereby achieving more accurate texture detection and improving the accuracy of optical recognition under the display.
  • the light emitting component 300 is a light source disposed outside the display screen.
  • the light-emitting assembly 300 may be an array light source disposed in a region directly under the display screen.
  • the array light source may be composed of an LED light source, or may be composed of a laser light source, or may be composed of an infrared light source.
  • the area where the array light source is disposed is the area for detecting the texture on the detecting device, in which the light sources are arranged at equal intervals to form an array, for example, a 5 ⁇ 4 array, please refer to FIG. 3.
  • the spacing between adjacent light sources in the array light source is greater than a preset value, such as 4 millimeters (mm), 5 mm, or 6 mm.
  • the initial light emitted by each of the array light sources can cover a predetermined area at a position where the first surface object approaches or contacts, and the predetermined area can be an area of 10 mm x 10 mm or an area of 11 mm x 11 mm.
  • each of the light sources in the array source emits initial light in different directions
  • the pixel electrode in the display panel has strong opacity
  • the back of the pixel electrode is the orientation of the pixel electrode.
  • One side of the lower surface of the screen is highly reflective, that is, the light that is incident on the back surface of the pixel electrode is strongly reflected, resulting in a decrease in the incidence of the initial light incident on the display screen.
  • the embodiment of the present application processes the initial light emitted by different light sources by the collimating component 301, and controls the initial light to be irradiated onto different regions of the surface of the object through the gap between adjacent pixel electrodes in the pixel electrode.
  • the collimating component 301 includes:
  • the light-transmitting portion is disposed between the adjacent light-blocking portions, and the light-blocking portion is configured to block the initial light from being irradiated onto the pixel electrode of the display screen to control the initial light from the light-transmitting portion
  • the gap between adjacent pixel electrodes is irradiated onto different areas of the surface of the object.
  • the material of the light blocking portion may be an opaque material, such as a black plastic film, a silicon wafer or a metal foil, and the light transmitting portion may be a light transmissive glass or a light blocking portion. gap.
  • the light blocking portion is configured to block the initial light from being irradiated onto the back surface of the pixel electrode of the display screen, that is, to control the initial light to be emitted through the light transmitting portion, and then incident on the surface of the object from the gap between the adjacent pixel electrodes, That is, the gap between the light transmitting portion and the adjacent pixel electrodes of the display screen is in one-to-one correspondence.
  • This not only limits the incident angle of the initial light, but also prevents the initial light from being directly reflected on the back surface of the pixel electrode, and is reflected back, unable to enter the display screen, and reduces the incidence of the initial light while reducing the optical scattering.
  • the initial light emitted by the array light source is processed by the collimating component 301, it is incident on different regions on the surface of the object through a gap between adjacent pixel electrodes, and adjacent regions in different regions do not overlap, for example, an array.
  • the initial light emitted by the first light source in the light source is processed by the collimating component 301 and then incident on the first region on the surface of the object through the gap between the adjacent pixel electrodes, and the initial light emitted by the second light source in the array light source,
  • the second region is incident on the surface of the object through the gap between the adjacent pixel electrodes, and the first region and the second region do not overlap, and the incident light in the first region is reflected by the object.
  • the cross-talk between the reflected light formed after the reflected light and the reflected light reflected by the object in the second region does not occur.
  • FIG. 16 For the specific optical path diagram, please refer to FIG. 16.
  • the ratio of the depth and the width of the light transmitting portion is set to be greater than a preset value, and the light transmitting portion is exemplified by the light transmitting glass.
  • the ratio of depth width is greater than 3:1, 5:1, or 10:1.
  • the implementation manner of the light transmitting portion and the light blocking portion included in the collimating assembly 301 includes but is not limited to the following three, which are respectively described below.
  • the mode A and the light blocking portion are light blocking blocks, and the gap between the adjacent light blocking blocks constitutes a light transmitting portion.
  • the initial rays are incident on different regions of the surface of the object through the gap between the adjacent pixel electrodes through the gap between the adjacent light blocking blocks through the gap between the adjacent pixel electrodes corresponding to the gap between the adjacent light blocking blocks.
  • the initial light emitted by the different light sources in the array light source is processed by the collimating component 301, different regions on the surface of the object are irradiated to the first region on the surface of the object and For example, in the second region, the reflected light formed by the incident light of the left region of the first region reflected by the second surface and the reflected light formed by the second surface of the second region may still be reflected. Crosstalk has occurred.
  • the longitudinal section of the control light blocking block and the lower surface of the display screen are at a preset angle.
  • the preset angle may be an acute angle between the longitudinal section and the lower surface of the display screen, or an obtuse angle when the longitudinal section is at an angle to the lower surface of the display screen, see FIGS. 17 and 18.
  • incident light rays having a predetermined angle are formed. Since the angle between the longitudinal section of each light blocking block in the light blocking block and the lower surface of the display screen is a preset angle, the incident light rays emerging from the gap between each adjacent light blocking block have The preset angle, that is, the incident light rays ejected from the adjacent light blocking blocks are oriented in the same direction, so that the reflected rays formed by the different incident regions on the surface of the object are reflected in the same direction, Crosstalk between reflected light is avoided, which further improves the accuracy of optical recognition of the display.
  • the light blocking portion may also be a light blocking sheet, and a gap between adjacent light blocking sheets constitutes a light transmitting portion.
  • an opaque layer is disposed on the lower surface of the display screen, and a through hole array is formed on the opaque layer.
  • the through-hole array constitutes a light-transmitting portion, and the area other than the via-hole array on the opaque layer constitutes a light-blocking portion, that is, in the mode B, the collimating assembly 301 includes the opaque layer and the opaque layer.
  • a through hole array opened on the top. The initial rays pass through the through holes in the via array, and are incident on different regions on the surface of the object through a gap between adjacent pixel electrodes corresponding to the via holes.
  • the opaque layer is a opaque film deposited on the lower surface of the display screen by an evaporation process, for example, a metal film, a black polyester film (Polyseter Film, PET) or black. Adhesive layer.
  • the via array can be formed by laser, mechanical imprinting, or micromachining.
  • the aperture of the through hole is set to be smaller than or equal to the gap width between adjacent pixel electrodes, wherein the through hole array has the first through hole and the second through hole, and the adjacent pixel electrode
  • the gap between the first gap and the second gap is exemplified, that is, the aperture of the first through hole is smaller than or equal to the first gap width, and the aperture of the second through hole is smaller than or equal to the second gap width.
  • a mask may be further disposed on a lower surface of the display screen, wherein the mask plate is provided with at least two sub-regions, and at least two of the at least two sub-regions have a gap between the adjacent sub-regions, at least two The opaque layer is evaporated on the sub-areas.
  • the mask is then removed to obtain a collimating assembly 301 comprising an array of vias and an opaque layer.
  • an N-layer opaque layer is stacked in a vertical direction of the lower surface of the display screen, and each of the opaque layers of the N-layer opaque layer is provided with a through-hole array, and each layer is provided with an opaque layer.
  • the positions of the via arrays are completely coincident, and the via array constitutes a light transmitting portion, and other regions of the N-layer light control layer excluding the via array constitute a light blocking portion.
  • the initial light rays are incident on the different regions on the surface of the object from the gap between the adjacent pixel electrodes corresponding to the through holes through the through holes.
  • the via array formed on the opaque layer is referred to as a first via array
  • the via array opened on the N opaque layer is referred to as a second via array.
  • the implementation manner of each layer of the light control layer includes, but is not limited to, the following two types.
  • the two implementation manners are respectively introduced below.
  • each opaque layer in the N-layer opaque layer includes a first sub-layer and a second sub-layer evaporated on a lower surface of the first sub-layer, wherein the material of the first sub-layer is a light transmissive material, such as a light transmissive glass or plastic, etc., the second sublayer material is an opaque material, such as an opaque film, which may be a metal film, a black polyester film (Polyseter Film, PET) or Black rubber layer.
  • the material of the first sub-layer is a light transmissive material, such as a light transmissive glass or plastic, etc.
  • the second sublayer material is an opaque material, such as an opaque film, which may be a metal film, a black polyester film (Polyseter Film, PET) or Black rubber layer.
  • the formation of the second via array on each of the opaque layers includes, but is not limited to, the following two modes:
  • the second sub-layer is vapor-deposited on the lower surface of the first sub-layer of each layer by an evaporation process, and the second via-hole array is opened on the second sub-layer.
  • a mask may be first disposed on a lower surface of each of the first sub-layers, wherein at least two sub-regions are disposed on the mask, and a gap is formed between adjacent sub-regions of the at least two sub-regions, The second sub-layer is evaporated on at least two sub-regions. Then, the mask is removed to obtain an opaque layer provided with the second via array, and then the opaque layers provided with the second via array are stacked and stacked in the vertical direction.
  • each layer of opaque layer such as a silicon substrate.
  • a second via array is formed on each of the opaque layers, and the second via array can be formed by laser, mechanical embossing, or micromachining.
  • the reflected light formed by the object reflection forms a feedback light through the display screen, and the feedback light is received by the lens array to concentrate the feedback light to form the transmitted light of the incident image sensor 302.
  • the volume of the detecting device is limited. If the thickness of the detecting device is to be within a certain range, the thickness of the lens is also within a certain range.
  • the thickness of the lens is constant, the shorter the focal length of the lens and the smaller the diameter of the lens, the smaller the angle of the lens, the smaller the angle of the lens to receive the emitted light, so that the lens can be received from the display.
  • a beam array is required to emit light at any angle and to converge the outgoing light.
  • the gap between adjacent lenses in the lens array is the same, and the diameter of each lens in the lens array is the same, and the focal length of each lens is also the same.
  • the diameter of each lens included in the lens array is within a preset diameter range, for example, the preset diameter ranges from [5 micrometers (um), 600 um], wherein the processing precision and image of the lens are taken into consideration. Resolution, the diameter of the lens can be specifically 50um.
  • the focal length of each lens included in the lens array is within a preset focal length range, for example, the preset focal length range is [20 um, 800 um], wherein the focal length of the lens is specific in consideration of the processing precision of the lens and the resolution of the image. Can be 50um.
  • the material of the lens included in the lens array may be resin, plastic, or glass.
  • the setting manner of the image sensor 302 includes, but is not limited to, the following two implementation manners, which are respectively introduced below.
  • the image sensor 302 is uniformly disposed in each of the spaced regions between adjacent light sources. For example, in the case where the number of image sensors 302 is 4 and the number of light sources is 5, the image sensor 302 is disposed between the light source and the light source.
  • the duty cycle of image sensor 302 and the light source is greater than a threshold, for example, 10:1 or 11:1.
  • Image sensor 302 is set in two ways
  • the image sensor 302 is disposed in a region directly under the light emitting assembly 300.
  • the glass block may or may not be disposed in the space between the adjacent light sources, which is not limited in the embodiment of the present application.
  • the transmitted light is incident on the image sensor 302 to form data for representing an image of the texture, wherein the texture of the object may be a fingerprint, or a texture of other parts of the object, such as a palm print or the like.
  • the operation mode of the image sensor 302 will be described by taking a fingerprint as a fingerprint and forming a texture image as a fingerprint image.
  • the image sensor 302 includes an image sensing layer and an image chip, and the image sensing layer and the image chip can be connected by a flexible circuit board.
  • the image sensing layer converts the formed fingerprint image into an electrical signal, and sends the electrical signal to the image chip through the flexible circuit board, and the image chip amplifies and converts the received electrical signal, and outputs the digital fingerprint image.
  • the image chip and the processor end communicate using a Serial Peripheral Interface (SPI) or an Inter-Integrated Circuit (I2C) interface.
  • SPI Serial Peripheral Interface
  • I2C Inter-Integrated Circuit
  • the image sensing layer may be a Charge-coupled Device (CCD) or a Complementary Metal Oxide Semiconductor (CMOS) image sensor 302.
  • CCD Charge-coupled Device
  • CMOS Complementary Metal Oxide Semiconductor
  • the fingerprint image sensing layer may adopt a large-area image sensor 302, for example, a large-area image sensor 302 using an organic material as a photosensitive medium, and specifically, organic printing photoelectric A detector (Organic Printed Photodetecor, OPD) is deposited on the back sheet of a plastic thin film transistor (TFT) to realize large-area image sensing; or a large-area image sensor 302 using an amorphous silicon glass substrate.
  • OPD Organic Printed Photodetecor
  • TFT plastic thin film transistor
  • photodiodes and thin film transistors are used as optical sensing units, and glass or plastic is used as a substrate.
  • the direction of propagation of the initial light is controlled by the collimating component 301, so that the initial light emitted by different light sources in the light-emitting component 300 is irradiated on different regions on the surface of the object, and the regions in different regions do not overlap.
  • the crosstalk of the reflected light formed by the light reflected by the object in different regions does not occur, and then the crosstalk between the feedback rays formed by the reflected light from the display screen does not occur, so that the image sensor 302 can form after receiving the feedback light. It is used to represent the data of the image with clearer texture, thus achieving more accurate texture detection and improving the accuracy of optical recognition under the display.
  • an embodiment of the present application provides a detecting apparatus, including:
  • the light-transmitting display screen 1001 includes a cover glass and a substrate glass disposed in parallel; and is used for controlling the initial emission of different light-emitting sources in the light-emitting assembly 1000 when the surface of the object is in contact with or close to the upper surface of the display screen 1001.
  • the light is irradiated onto different areas of the surface of the object through the cover glass, and the reflected light formed by the reflection of the initial light passing through the object forms a feedback light through the substrate glass;
  • the image sensor 1002 is configured to form data for representing an image of a texture of a surface of an object contacting or approaching the upper surface by receiving the feedback light.
  • the direction of propagation of the initial light is controlled by the display screen 1001, so that the initial light emitted by different light sources in the light-emitting component 1000 is irradiated on different regions on the surface of the object, and the regions in different regions do not overlap.
  • crosstalk is not generated between the reflected rays formed by the light reflected in different regions by the object, and then the reflected light formed by the reflected light passing through the display screen 1001 does not crosstalk, so that the image sensor 1002 receives the feedback.
  • data for representing a relatively clear image can be formed, thereby achieving more accurate texture detection and improving the accuracy of optical recognition under the display 1001.
  • the substrate glass includes:
  • the light-transmitting portion is disposed between the adjacent light-blocking portions, wherein the light-blocking portion is configured to block the initial light from being incident on the pixel electrode of the display screen 1001 to control the initial light
  • the light portion is irradiated from a gap between adjacent pixel electrodes onto different regions of the surface of the object.
  • the material of the light blocking portion may be an opaque material, such as a black plastic film, a silicon wafer or a metal foil, and the light transmitting portion may be a light transmissive glass or a light blocking portion. gap.
  • the light blocking portion is for blocking the initial light from being irradiated onto the back surface of the pixel electrode of the display screen 1001, that is, controlling the initial light to be emitted through the light transmitting portion, and then incident on the surface of the object from the gap between the adjacent pixel electrodes. That is, the light-transmitting portion has a one-to-one correspondence with the gap between the adjacent pixel electrodes of the display screen 1001.
  • This not only limits the incident angle of the initial light, but also prevents the initial light from being directly reflected on the back surface of the pixel electrode and is reflected back, and cannot enter the display screen 1001, thereby reducing the optical scattering and increasing the incident rate of the initial light.
  • the description of the light blocking portion is the same as the light blocking portion in the fifth aspect, and details are not described herein again.
  • a seventh aspect please refer to FIG. 25.
  • the embodiment of the present application provides a terminal device, including:
  • the detecting device 1201 for obtaining data of an image of a texture indicating a surface of the object in proximity or contact with the display screen 1200 when an object approaches or contacts the display screen 1200;
  • the processor 1202 is coupled to the detecting means 1201 for converting data of the image into the image and identifying whether the image is a set image.
  • the terminal device may be a stand-alone device or a module disposed in another device, and the other devices may include, but are not limited to, a mobile phone (or “cellular” phone), and have a mobile terminal device computer.
  • a mobile phone or “cellular” phone
  • mobile phones tablet computers (PADs), personal digital assistants (PDAs), point of sales (POS), in-vehicle computers, smart watches, smart helmets, smart glasses, or smart bracelets, etc.
  • PDAs personal digital assistants
  • POS point of sales
  • the processor 1202 receives the data for representing the fingerprint image
  • the data of the fingerprint image is converted into a fingerprint image
  • the feature points of the fingerprint image are extracted
  • the extracted feature points and the pre-saved feature points are extracted.
  • Perform matching to obtain the matching degree between the extracted feature points and the pre-saved feature points.
  • the matching degree is greater than the preset value, for example, 90%
  • the matching is successful
  • the matching degree is less than the preset value
  • the matching fails.
  • the processor 1202 outputs a prompt message, for example, outputting a voice prompt “Please re-enter the fingerprint”, or prompting the fingerprint matching failure by flashing the light.
  • the processor 1202 may be a general-purpose central processing unit or an application specific integrated circuit (ASIC), and may be one or more integrated circuits for controlling program execution, and may be field-programmable.
  • ASIC application specific integrated circuit
  • the hardware circuit developed by the Field Programmable Gate Array (FPGA) can be a baseband processor.
  • the terminal device further includes:
  • the sensor 1203 is configured to detect a touch operation for activating the detecting function of the detecting device 1201.
  • the touch operation may be a pressing operation or a sliding operation.
  • the detection function of the detecting device 1201 is activated.
  • the processor 1202 is further configured to:
  • the light source at the position corresponding to the touch position included in the light-emitting component of the control detecting device 1201 is in a lighting state, and the other light sources in the light-emitting component are in a closed state.
  • the senor 1203 may be a pressure sensor or a gravity sensor.
  • the light emitting component includes a first light source, a second light source, a third light source, and a fourth light source.
  • the touch position is the first in the fingerprint identification area on the display screen 1200 In a region, the first light source and the second light source in the control light-emitting component are turned on, and the third light source and the fourth light source are turned off; when the touch position is the second region in the fingerprint recognition area on the display screen 1200, the light-emitting component is controlled
  • the third light source and the fourth light source are turned on, and the first light source and the second light source are turned off.
  • part of the light sources in the control light-emitting component are in an on state for emitting an initial light source, and other parts of the light source in the light-emitting assembly are controlled to be in a closed state to reduce power consumption of the terminal device.
  • an embodiment of the present application provides a terminal device, including:
  • the detecting device 1300 for obtaining data of an image of a texture indicating a surface of the object in proximity or contact with the detecting device 1300 when an object approaches or contacts the detecting device 1300;
  • the processor 1301 is coupled to the detecting device 1300 for converting data of the image into an image and identifying whether the image is a set image.
  • the terminal device may be a stand-alone device or a module disposed in another device, and the other devices may include, but are not limited to, a mobile phone (or “cellular” phone), and have a mobile terminal device computer.
  • a mobile phone or “cellular” phone
  • mobile phones tablet computers (PADs), personal digital assistants (PDAs), point of sales (POS), in-vehicle computers, smart watches, smart helmets, smart glasses, or smart bracelets, etc.
  • PDAs personal digital assistants
  • POS point of sales
  • the processor 1301 receives the data for representing the fingerprint image
  • the data of the fingerprint image is converted into a fingerprint image
  • the feature points of the fingerprint image are extracted
  • the extracted feature points and the pre-saved feature points are extracted.
  • Perform matching to obtain the matching degree between the extracted feature points and the pre-saved feature points.
  • the matching degree is greater than the preset value, for example, 90%
  • the matching is successful
  • the matching degree is less than the preset value
  • the matching fails.
  • the processor 1301 outputs a prompt message, for example, outputting a voice prompt "Please re-enter the fingerprint", or prompting the fingerprint matching failure by flashing the light.
  • the processor 1301 may be a general-purpose central processing unit or an application specific integrated circuit (ASIC), and may be one or more integrated circuits for controlling program execution, and may be field-programmable.
  • ASIC application specific integrated circuit
  • the hardware circuit developed by Field Array (English: Field Programmable Gate Array, referred to as FPGA) can be a baseband processor.
  • the terminal device further includes:
  • the sensor 1302 is configured to detect a touch operation for activating the detecting function of the detecting device 1300.
  • the touch operation may be a pressing operation or a sliding operation.
  • the processor 1301 is further configured to:
  • the light source at the position corresponding to the touch position included in the light-emitting component of the control detecting device 1300 is in a lighting state, and the other light sources in the light-emitting component are in a closed state.
  • the senor 1302 may be a pressure sensor or a gravity sensor.
  • the light emitting component includes a first light source, a second light source, a third light source, and a fourth light source
  • the touch position is the first in the fingerprint identification area on the display screen.
  • the first light source and the second light source in the control light-emitting component are turned on, and the third light source and the fourth light source are turned off; when the touch position is the second area in the fingerprint recognition area on the detecting device 1300, the light-emitting component is controlled
  • the third light source and the fourth light source are turned on, and the first light source and the second light source are turned off.
  • part of the light sources in the control light-emitting component are in an on state for emitting an initial light source, and other parts of the light source in the light-emitting assembly are controlled to be in a closed state to reduce power consumption of the terminal device.

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Abstract

A detection apparatus and a terminal device, for use in improving the precision of optical recognition under a display screen. The detection device comprises: a light-emitting component used for emitting initial light; a control component used for controlling a propagation direction of feedback light emerging from a light-transmitting display screen so as to form imaging light, wherein the feedback light is the light reflected, under irradiation of the initial light when an object approaches or contacts the display screen, by lines on the side of the object close to or in contact with the display screen; and an image sensor used for forming, by receiving the imaging light, data of an image for representing the lines on the side of the object close to or in contact with the display screen.

Description

一种检测装置及终端设备Detection device and terminal device
本申请要求于2017年4月14日提交中国专利局、申请号为201710245989.6、发明名称为“一种指纹识别方法和装置”的中国专利申请、于2017年7月31日提到中国专利局、申请号为201710643113.7、发明名称为“一种检测装置及终端设备”的中国专利申请、于2017年7月31日提到中国专利局、申请号为201720946851.4、发明名称为“一种检测装置及终端设备”的中国专利申请以及于2017年7月31日提到中国专利局、申请号为201720946650.4、发明名称为“一种检测装置及终端设备”的中国专利申请的优先权,这些中国专利申请的全部内容通过引用结合在本申请中。This application is required to be submitted to the China Patent Office on April 14, 2017, the application number is 201710245989.6, the Chinese patent application whose invention name is "a fingerprint identification method and device", and the Chinese Patent Office mentioned on July 31, 2017. The Chinese patent application with the application number of 201710643113.7, the invention name is “a detection device and terminal equipment”, the Chinese Patent Office mentioned on July 31, 2017, the application number is 201720946851.4, and the invention name is “a detection device and terminal”. Chinese patent application of the device and the Chinese patent application filed on July 31, 2017, the application number is 201720946650.4, and the invention is entitled "a detection device and terminal device", the priority of these Chinese patent applications The entire contents are incorporated herein by reference.
技术领域Technical field
本申请实施例涉及电子技术领域,尤其涉及一种检测装置及终端设备。The embodiments of the present application relate to the field of electronic technologies, and in particular, to a detecting device and a terminal device.
背景技术Background technique
近年来,具有生物识别功能的终端设备逐渐进入人们的生活工作中,其中,指纹因能够唯一表征人的身份特征,而备受人们重视,且随着终端设备全屏化的发展,未来人们更关注的是终端设备的显示屏下的指纹识别技术。In recent years, terminal devices with biometric functions have gradually entered people's life and work. Among them, fingerprints are highly valued because they can uniquely characterize people's identity, and with the development of full-screen terminal devices, people will pay more attention in the future. It is the fingerprint recognition technology under the display of the terminal device.
目前,能够应用于显示屏下的指纹识别技术有光学技术、电容技术及超声波技术等,其中,光学技术因耐用性好、成本低的优点受到青睐。但是对于光学技术,由于光源会向不同方向发出初始光线,那么当存在多个光源时会导致从显示屏出射到达图像传感器的各个出射光线之间相互交叠,进而导致图像传感器成像模糊。例如请参考图1,多个光源中不同光源发出的初始光线透过显示屏照射到物体的一面上,经物体的反射后形成反射光线,物体的一面上不同位置处的反射光线透过显示屏形成的出射光线可能会照射在图像传感器上的同一位置处,由于不同的出射光线表征不同的指纹信息,当不同的出射光线照射到同一位置处时,也就是不同的指纹信息叠加,从而造成图像传感器的成像模糊。At present, fingerprint recognition technologies that can be applied to display screens include optical technology, capacitance technology, and ultrasonic technology. Among them, optical technology is favored for its advantages of good durability and low cost. However, in the optical technology, since the light source emits initial light in different directions, when there are multiple light sources, the respective outgoing rays that are emitted from the display screen and reach the image sensor overlap each other, thereby causing the image sensor to be blurred. For example, please refer to FIG. 1. The initial light emitted by different light sources in multiple light sources is irradiated onto one side of the object through the display screen, and reflected light is reflected by the object to form reflected light at different positions on one side of the object. The formed outgoing light may be irradiated at the same position on the image sensor. Since different outgoing rays represent different fingerprint information, when different outgoing rays are irradiated to the same position, different fingerprint information is superimposed, thereby causing an image. The imaging of the sensor is blurred.
由此可见,现有技术中显示屏下的光学识别技术的识别精准度较低。It can be seen that the optical recognition technology under the display screen in the prior art has low recognition accuracy.
发明内容Summary of the invention
本申请实施例提供一种检测装置及终端设备,用于提高显示屏下的光学识别的精准度。The embodiment of the present application provides a detecting device and a terminal device for improving the accuracy of optical recognition under the display screen.
第一方面,本申请实施例提供了一种检测装置,包括:发光组件,用于发出初始光线;In a first aspect, an embodiment of the present application provides a detecting apparatus, including: a light emitting component, configured to emit initial light;
控制组件,用于控制从具有透光性的显示屏出射的反馈光线的传播方向,以形成成像光线,其中,所述反馈光线为在一物体靠近或接触所述显示屏时,在所述初始光线的照射下,所述物体靠近或接触所述显示屏的一面的纹路所反射的光线;图像传感器,用于通过接收所述成像光线,形成用于表示所述物体靠近或接触所述显示模组的一面的纹路的图像的数据。a control component for controlling a propagation direction of the feedback light emitted from the light-transmitting display screen to form an imaging light, wherein the feedback light is at an initial when an object approaches or contacts the display screen The light reflected by the light of the object approaching or contacting the side of the display screen; the image sensor is configured to receive the image light to form the object to approach or contact the display mode The data of the image of the side of the group.
在本申请实施例中,通过控制组件来控制反馈光线的传播方向,能够消除不同的反 馈光线之间产生的串扰,形成成像光线。从而使得图像传感器在接收成像光线后能够形成用于表示纹路较为清晰的图像的数据,进而实现更精确的纹路检测,提高了显示屏下光学识别的精准度。In the embodiment of the present application, the control component is used to control the propagation direction of the feedback light, and the crosstalk generated between the different feedback rays can be eliminated to form the imaging light. Therefore, the image sensor can form data for representing a relatively clear image after receiving the imaging light, thereby achieving more accurate texture detection and improving the accuracy of optical recognition under the display screen.
在一个可能的设计中,所述控制组件包括:透镜阵列,用于汇聚所述反馈光线,以形成入射所述图像传感器的透射光线;导光组件,设置在所述透镜阵列和所述图像传感器之间,用于消除从所述透镜阵列中每个透镜出射的透射光线之间发生的串扰。In one possible design, the control component includes: a lens array for concentrating the feedback ray to form a transmitted ray incident on the image sensor; a light guiding component disposed on the lens array and the image sensor Between, for eliminating crosstalk occurring between transmitted rays emerging from each lens in the lens array.
在本申请实施例中,在透镜阵列对反馈光线进行汇聚后,由导光组件消除从透镜阵列中的每个透镜出射的透射光线之间发生的串扰,形成成像光线。从而使得图像传感器在接收成像光线后能够形成用于表示纹路较为清晰的图像的数据,进而实现更精确的纹路检测,提高了显示屏下光学识别的精准度。In the embodiment of the present application, after the lens array converges the feedback light, the light guide component eliminates crosstalk occurring between the transmitted light emitted from each lens in the lens array to form imaging light. Therefore, the image sensor can form data for representing a relatively clear image after receiving the imaging light, thereby achieving more accurate texture detection and improving the accuracy of optical recognition under the display screen.
在一个可能的设计中,所述导光组件包括:在垂直方向上堆叠设置的N层不透光层,所述N层不透光层中的每层不透光层开设有通孔阵列,所述每层不透光层开设的通孔阵列的位置完全重合,所述通孔阵列包括贯穿所述每层不透光层的第一通孔和第二通孔,N为整数;其中,所述第一通孔和所述第二通孔之间具有隔断,以消除从所述第一透镜出射的透射光线和从所述第二透镜出射的透射光线之间发生的串扰。In a possible design, the light guiding component comprises: an N-layer opaque layer stacked in a vertical direction, and each of the N opaque layers is provided with an array of through holes. The positions of the through-hole arrays in each of the opaque layers are completely coincident, and the through-hole array includes a first through hole and a second through hole extending through the opaque layer of each layer, where N is an integer; A partition is formed between the first through hole and the second through hole to eliminate crosstalk occurring between transmitted light emitted from the first lens and transmitted light emitted from the second lens.
在本申请实施例中,每层不透光层可以是硅基板,也可以是具有其它结构的层,例如每层不透光层包括第一子层和蒸镀在第一子层的上表面的第二子层;其中,第一子层的材料是具有透光性的材料,例如具有透光性的塑料,或者是玻璃,第二子层的材料是不具有透光性的材料,例如不具透光性薄膜,可以是金属薄膜、黑色聚酯薄膜(Polyseter Film,PET)或者黑胶层。In the embodiment of the present application, each opaque layer may be a silicon substrate, or may be a layer having other structures, for example, each opaque layer includes a first sub-layer and is vapor-deposited on the upper surface of the first sub-layer. a second sub-layer; wherein the material of the first sub-layer is a light transmissive material, such as a translucent plastic or glass, and the material of the second sub-layer is a material that does not have translucency, such as It is not a light transmissive film and may be a metal film, a black polyester film (PET) or a black rubber layer.
在本申请实施例中,在每层不透光层上开设通孔阵列,然后将开设有通孔阵列的不透光层键合形成导光组件。由于每层不透光层的厚度较薄,这样通过激光、机械加工压印、或未加工等方式进行打孔时的打孔难度较低,从而能够实现量产。In the embodiment of the present application, an array of through holes is formed on each opaque layer, and then an opaque layer having an array of through holes is bonded to form a light guiding component. Since the thickness of each opaque layer is thin, it is difficult to punch holes by laser, mechanical embossing, or unprocessed, so that mass production can be achieved.
在一个可能的设计中,所述N为对根据占空比的函数获得值向上取整得到的;其中,所述占空比的函数为1和所述占空比之间差值的倒数,所述占空比为所述透镜阵列中的透镜的直径与所述透镜阵列的透镜的周期的比值。In one possible design, the N is obtained by rounding up the value obtained according to the function of the duty cycle; wherein the function of the duty ratio is 1 and the reciprocal of the difference between the duty ratios, The duty cycle is the ratio of the diameter of the lens in the lens array to the period of the lens of the lens array.
在本申请实施例中,根据占空比,也就是透镜阵列中透镜的占空比,确定所需不透光层的层数。In the embodiment of the present application, the number of layers of the desired opaque layer is determined according to the duty ratio, that is, the duty ratio of the lens in the lens array.
在一个可能的设计中,所述导光组件包括:不透光层,所述不透光层开设有通孔阵列,所述通孔阵列包括贯穿所述不透光层的第一通孔和第二通孔;其中,所述第一通孔和所述第二通孔之间具有隔断,以消除从所述第一透镜出射的透射光线和从所述第二透镜出射的透射光线之间发生的串扰。In a possible design, the light guiding component includes: an opaque layer, the opaque layer is provided with an array of through holes, and the through hole array includes a first through hole penetrating the opaque layer and a second through hole; wherein the first through hole and the second through hole have a partition therebetween to eliminate between the transmitted light emitted from the first lens and the transmitted light emitted from the second lens Crosstalk that has occurred.
在本申请实施例中,在不透光层上开设通孔阵列,通孔阵列中的第一通孔和第二通孔之间具有隔断,具有挡光作用,从而能够消除从第一透镜出射的透射光线和从第二透镜出射的透射光线之间发生的串扰。In the embodiment of the present application, the through hole array is formed on the opaque layer, and the first through hole and the second through hole in the through hole array are separated by a light blocking function, thereby eliminating the emission from the first lens. The crosstalk that occurs between the transmitted light and the transmitted light emerging from the second lens.
在一个可能的设计中,所述不透光层的厚度小于或等于从所述透镜阵列中的透镜的光心到所述图像传感器之间的垂直距离,以使从所述透镜阵列的第一透镜出射的透射光线经所述第一通孔出射到所述图像传感器上所述第一通孔的投影所在的第一区域,从所述透镜阵列的第二透镜出射的透射光线经所述第二通孔出射到所述图像传感器上所述 第二通孔的投影所在的第二区域。In one possible design, the thickness of the opaque layer is less than or equal to a vertical distance from the optical center of the lens in the lens array to the image sensor such that the first from the lens array Transmitted light emitted from the lens exits through the first through hole to a first region where the projection of the first through hole is on the image sensor, and the transmitted light emitted from the second lens of the lens array passes through the first The second through hole exits to a second area where the projection of the second through hole on the image sensor is located.
在本申请实施例中,设置不透光层的厚度小于或等于从所述透镜阵列中的透镜的光心到所述图像传感器之间的垂直距离,以避免从第一透镜出射的透射光线经第一通孔出射到第二区域和/或从第二透镜透射的出射光线经第二通孔出射到第一区域,从而能够进一步消除从透镜透射的透射光线之间发生的串扰。In the embodiment of the present application, the thickness of the opaque layer is set to be less than or equal to a vertical distance from the optical center of the lens in the lens array to the image sensor to avoid the transmitted light emitted from the first lens. The first through hole exits to the second region and/or the outgoing light transmitted from the second lens exits through the second through hole to the first region, thereby further eliminating crosstalk occurring between the transmitted light transmitted from the lens.
在一个可能的设计中,所述第一通孔的孔径小于或等于所述第一透镜的直径,所述第二通孔的孔径小于或等于所述第二透镜的直径。In one possible design, the aperture of the first through hole is smaller than or equal to the diameter of the first lens, and the aperture of the second through hole is smaller than or equal to the diameter of the second lens.
在本申请实施例中,通孔阵列中的每个通孔的孔径小于或等于透镜阵列中的与每个通孔对应的透镜的直径,例如第一通孔的孔径小于或等于第一透镜的直径,第二通孔的孔径要小于等于第二透镜的直径,以避免从第二透镜透射的透射光线从第一通孔的顶端直接入射到第一通孔中,与第一通孔中传输的透射光线之间发生串扰,或者从第一透镜透射的透射光线从第二通孔的顶端直接入射到第二通孔中,与第二通孔中传输的透射光线之间发生串扰。In the embodiment of the present application, the aperture of each through hole in the through hole array is smaller than or equal to the diameter of the lens corresponding to each through hole in the lens array, for example, the aperture of the first through hole is smaller than or equal to the first lens. The diameter of the second through hole is smaller than or equal to the diameter of the second lens, so that the transmitted light transmitted from the second lens is directly incident into the first through hole from the top end of the first through hole, and is transmitted in the first through hole. Crosstalk occurs between the transmitted rays, or transmitted rays transmitted from the first lens are directly incident into the second through holes from the top end of the second through holes, and crosstalk occurs between the transmitted light transmitted in the second through holes.
在一个可能的设计中,所述导光组件为光纤面板,所述光纤面板的数值孔径小于预设值,以使所述光纤面板接收从所述透镜阵列出射的在预设角度范围的透射光线,以消除从所述透镜阵列的第一透镜出射的透射光线和从所述透镜阵列的第二透镜出射的透射光线之间发生的串扰;其中,所述预设值为所述透镜阵列中的透镜的直径与所述透镜阵列和所述光纤面板之间的距离的比值。In a possible design, the light guiding component is a fiber optic panel, and the numerical aperture of the fiber optic panel is less than a preset value, so that the fiber optic panel receives the transmitted light from the lens array at a preset angle range. And eliminating crosstalk occurring between transmitted light emitted from the first lens of the lens array and transmitted light emitted from the second lens of the lens array; wherein the preset value is in the lens array The ratio of the diameter of the lens to the distance between the lens array and the fiber optic panel.
在本申请实施例中,光纤面板的数值孔径小于预设值,从而保证光纤面板接收从透镜阵列出射的预设角度范围内的透射光线,进而能够消除不同的透射光线之间发生的串扰。In the embodiment of the present application, the numerical aperture of the optical fiber panel is smaller than a preset value, thereby ensuring that the optical fiber panel receives the transmitted light within a preset angle range emitted from the lens array, thereby eliminating crosstalk occurring between different transmitted light.
在一个可能的设计中,所述发光组件为设置在所述显示屏外部的光源;In one possible design, the light emitting component is a light source disposed outside the display screen;
所述检测装置还包括:The detecting device further includes:
准直组件,用于控制所述发光组件中包括的不同光源发出的初始光线照射在所述物体的一面上的不同区域。And a collimating component for controlling different light emitted by different light sources included in the light emitting component to illuminate different regions on one side of the object.
在本申请实施例中,还可以通过准直组件对发光组件中包括的不同光源发出的初始光线的照射范围,进一步通过导光组件对反馈光线的控制,能够更好的消除光线之间发生的串扰。In the embodiment of the present application, the illumination range of the initial light emitted by the different light sources included in the light-emitting component can be further controlled by the collimating component, and the control light can be further controlled by the light guiding component to better eliminate the occurrence of light between the light-emitting components. Crosstalk.
在一个可能的设计中,所述准直组件包括:In one possible design, the collimating assembly includes:
透光部分和挡光部分,所述透光部分设置在相邻的挡光部分之间,所述挡光部分用于阻挡所述初始光线照射到所述显示屏的像素电极上,以控制所述初始光线由所述透光部分,从相邻的像素电极之间的间隙照射到所述物体的一面上的不同区域。a light transmitting portion disposed between the adjacent light blocking portions, the light blocking portion for blocking the initial light from being incident on the pixel electrode of the display screen to control the The initial light is irradiated from the light transmitting portion to a different region on one side of the object from a gap between adjacent pixel electrodes.
在本申请实施例中,挡光部分阻挡初始光线照射到显示屏的像素电极上,限制了初始光线的入射角度,避免初始光线照射到像素电极的背面后被反射回来,无法照射到物体的一面上,从而提高了初始光线照射到物体的一面上的照射射率。In the embodiment of the present application, the light blocking portion blocks the initial light from being irradiated onto the pixel electrode of the display screen, limits the incident angle of the initial light, prevents the initial light from being reflected back to the back surface of the pixel electrode, and is reflected back to the side of the object. Upper, thereby increasing the irradiance of the initial light onto one side of the object.
第二方面,本申请实施例提供一种检测设备,该检测设备包括控制组件,用于控制从具有透光性的显示屏出射的反馈光线的传播方向,以形成成像光线,其中,所述反馈光线为在一物体靠近或接触所述显示屏时,在所述显示屏发出的初始光线的照射下,所述物体靠近或接触所述显示屏的一面的纹路所反射的光线;图像传感器,用于通过接收 所述成像光线,形成用于表示所述物体靠近或接触所述显示模组的一面的纹路的图像的数据。In a second aspect, an embodiment of the present application provides a detecting device, where the detecting device includes a control component for controlling a propagation direction of a feedback light emitted from a light-transmitting display screen to form an imaging light, wherein the feedback Light is a light reflected by an image of a side of the display screen that is close to or in contact with an image of the display screen when an object approaches or contacts the display screen; By receiving the imaging ray, data is formed for an image representing the texture of the object approaching or contacting one side of the display module.
在本申请实施例中,通过控制组件来控制反馈光线的传播方向,能够消除不同的反馈光线之间产生的串扰,形成成像光线。从而使得图像传感器在接收成像光线后能够形成用于表示纹路较为清晰的图像的数据,进而实现更精确的纹路检测,提高了显示屏下光学识别的精准度。In the embodiment of the present application, the control component is used to control the propagation direction of the feedback light, and the crosstalk generated between the different feedback rays can be eliminated to form the imaging light. Therefore, the image sensor can form data for representing a relatively clear image after receiving the imaging light, thereby achieving more accurate texture detection and improving the accuracy of optical recognition under the display screen.
在一个可能的设计中,所述控制组件包括:透镜阵列,用于汇聚所述反馈光线,以形成入射所述图像传感器的透射光线;导光组件,设置在所述透镜阵列和所述图像传感器之间,用于消除从所述透镜阵列中每个透镜出射的透射光线之间发生的串扰,以形成所述成像光线。In one possible design, the control component includes: a lens array for concentrating the feedback ray to form a transmitted ray incident on the image sensor; a light guiding component disposed on the lens array and the image sensor Between, for eliminating crosstalk occurring between transmitted rays emerging from each lens in the lens array to form the imaged light.
在本申请实施例中,在透镜阵列对反馈光线进行汇聚后,由导光组件消除从透镜阵列中的每个透镜出射的透射光线之间发生的串扰,形成成像光线。从而使得图像传感器在接收成像光线后能够形成用于表示纹路较为清晰的图像的数据,进而实现更精确的纹路检测,提高了显示屏下光学识别的精准度。In the embodiment of the present application, after the lens array converges the feedback light, the light guide component eliminates crosstalk occurring between the transmitted light emitted from each lens in the lens array to form imaging light. Therefore, the image sensor can form data for representing a relatively clear image after receiving the imaging light, thereby achieving more accurate texture detection and improving the accuracy of optical recognition under the display screen.
在一个可能的设计中,所述导光组件包括:在垂直方向上堆叠设置的N层不透光层,所述N层不透光层中的每层不透光层开设有通孔阵列,所述每层不透光层开设的通孔阵列的位置完全重合,所述通孔阵列包括贯穿所述每层不透光层的第一通孔和第二通孔,N为整数;其中,所述第一通孔和所述第二通孔之间具有隔断,以消除从所述第一透镜出射的透射光线和从所述第二透镜出射的透射光线之间发生的串扰。In a possible design, the light guiding component comprises: an N-layer opaque layer stacked in a vertical direction, and each of the N opaque layers is provided with an array of through holes. The positions of the through-hole arrays in each of the opaque layers are completely coincident, and the through-hole array includes a first through hole and a second through hole extending through the opaque layer of each layer, where N is an integer; A partition is formed between the first through hole and the second through hole to eliminate crosstalk occurring between transmitted light emitted from the first lens and transmitted light emitted from the second lens.
在本申请实施例中,每层不透光层可以是硅基板,也可以是具有其它结构的层,例如每层不透光层包括第一子层和贴合设置在第一子层的上表面的第二子层;其中,第一子层的材料是具有透光性的材料,例如具有透光性的塑料,或者是玻璃,第二子层的材料是不具有透光性的材料,例如不具透光性薄膜,可以是金属薄膜、黑色聚酯薄膜(Polyseter Film,PET)或者黑胶层。In the embodiment of the present application, each opaque layer may be a silicon substrate, or may be a layer having other structures, for example, each opaque layer includes a first sub-layer and is disposed on the first sub-layer. a second sub-layer of the surface; wherein the material of the first sub-layer is a light transmissive material, such as a translucent plastic or glass, and the material of the second sub-layer is a material that does not have translucency. For example, it is not a light transmissive film, and may be a metal film, a black polyester film (PET) or a black rubber layer.
在本申请实施例中,第二子层可以通过蒸镀的方式蒸镀在第一子层的上表面,也可以通过掩模板的方式,设置在第一子层的上表面,在本申请实施例中不作限制。In the embodiment of the present application, the second sub-layer may be vapor-deposited on the upper surface of the first sub-layer by vapor deposition, or may be disposed on the upper surface of the first sub-layer by means of a mask, which is implemented in the present application. There are no restrictions in the examples.
在本申请实施例中,在每层不透光层上开设通孔阵列,然后将开设有通孔阵列的不透光层键合形成导光组件。由于每层不透光层的厚度较薄,这样通过激光、机械加工压印、或未加工等方式进行打孔时的打孔难度较低,从而能够实现量产。In the embodiment of the present application, an array of through holes is formed on each opaque layer, and then an opaque layer having an array of through holes is bonded to form a light guiding component. Since the thickness of each opaque layer is thin, it is difficult to punch holes by laser, mechanical embossing, or unprocessed, so that mass production can be achieved.
在一个可能的设计中,所述N为对根据占空比的函数获得值向上取整得到的;其中,所述占空比的函数为1和所述占空比之间差值的倒数,所述占空比为所述透镜阵列中的透镜的直径与所述透镜阵列的透镜的周期的比值。In one possible design, the N is obtained by rounding up the value obtained according to the function of the duty cycle; wherein the function of the duty ratio is 1 and the reciprocal of the difference between the duty ratios, The duty cycle is the ratio of the diameter of the lens in the lens array to the period of the lens of the lens array.
在本申请实施例中,根据占空比,也就是透镜阵列中透镜的占空比,确定所需不透光层的层数。In the embodiment of the present application, the number of layers of the desired opaque layer is determined according to the duty ratio, that is, the duty ratio of the lens in the lens array.
在一个可能的设计中,所述导光组件包括:不透光层,所述不透光层开设有通孔阵列,所述通孔阵列包括贯穿所述不透光层的第一通孔和第二通孔;其中,所述第一通孔和所述第二通孔之间具有隔断,以消除从所述第一透镜出射的透射光线和从所述第二透镜出射的透射光线之间发生的串扰。In a possible design, the light guiding component includes: an opaque layer, the opaque layer is provided with an array of through holes, and the through hole array includes a first through hole penetrating the opaque layer and a second through hole; wherein the first through hole and the second through hole have a partition therebetween to eliminate between the transmitted light emitted from the first lens and the transmitted light emitted from the second lens Crosstalk that has occurred.
在本申请实施例中,在不透光层上开设通孔阵列,通孔阵列中的第一通孔和第二通 孔之间具有隔断,具有挡光作用,从而能够消除从第一透镜出射的透射光线和从第二透镜出射的透射光线之间发生的串扰。In the embodiment of the present application, the through hole array is formed on the opaque layer, and the first through hole and the second through hole in the through hole array are separated by a light blocking function, thereby eliminating the emission from the first lens. The crosstalk that occurs between the transmitted light and the transmitted light emerging from the second lens.
在一个可能的设计中,所述不透光层的厚度小于或等于从所述透镜阵列中的透镜的光心到所述图像传感器之间的垂直距离,以使从所述透镜阵列的第一透镜出射的透射光线经所述第一通孔出射到所述图像传感器上所述第一通孔的投影所在的第一区域,从所述透镜阵列的第二透镜出射的透射光线经所述第二通孔出射到所述图像传感器上所述第二通孔的投影所在的第二区域。In one possible design, the thickness of the opaque layer is less than or equal to a vertical distance from the optical center of the lens in the lens array to the image sensor such that the first from the lens array Transmitted light emitted from the lens exits through the first through hole to a first region where the projection of the first through hole is on the image sensor, and the transmitted light emitted from the second lens of the lens array passes through the first The second through hole exits to a second area where the projection of the second through hole on the image sensor is located.
在本申请实施例中,设置不透光层的厚度小于或等于从所述透镜阵列中的透镜的光心到所述图像传感器之间的垂直距离,以避免从第一透镜出射的透射光线经第一通孔出射到第二区域和/或从第二透镜透射的出射光线经第二通孔出射到第一区域,从而能够进一步消除从透镜透射的透射光线之间发生的串扰。In the embodiment of the present application, the thickness of the opaque layer is set to be less than or equal to a vertical distance from the optical center of the lens in the lens array to the image sensor to avoid the transmitted light emitted from the first lens. The first through hole exits to the second region and/or the outgoing light transmitted from the second lens exits through the second through hole to the first region, thereby further eliminating crosstalk occurring between the transmitted light transmitted from the lens.
在一个可能的设计中,所述第一通孔的孔径小于或等于所述第一透镜的直径,所述第二通孔的孔径小于或等于所述第二透镜的直径。In one possible design, the aperture of the first through hole is smaller than or equal to the diameter of the first lens, and the aperture of the second through hole is smaller than or equal to the diameter of the second lens.
在本申请实施例中,通孔阵列中的每个通孔的孔径小于或等于透镜阵列中的与每个通孔对应的透镜的直径,例如第一通孔的孔径小于或等于第一透镜的直径,第二通孔的孔径要小于等于第二透镜的直径,以避免从第二透镜透射的透射光线从第一通孔的顶端直接入射到第一通孔中,与第一通孔中传输的透射光线之间发生串扰,或者从第一透镜透射的透射光线从第二通孔的顶端直接入射到第二通孔中,与第二通孔中传输的透射光线之间发生串扰。In the embodiment of the present application, the aperture of each through hole in the through hole array is smaller than or equal to the diameter of the lens corresponding to each through hole in the lens array, for example, the aperture of the first through hole is smaller than or equal to the first lens. The diameter of the second through hole is smaller than or equal to the diameter of the second lens, so that the transmitted light transmitted from the second lens is directly incident into the first through hole from the top end of the first through hole, and is transmitted in the first through hole. Crosstalk occurs between the transmitted rays, or transmitted rays transmitted from the first lens are directly incident into the second through holes from the top end of the second through holes, and crosstalk occurs between the transmitted light transmitted in the second through holes.
在一个可能的设计中,所述导光组件为光纤面板,所述光纤面板的数值孔径小于预设值,以使所述光纤面板接收从所述透镜阵列出射的在预设角度范围的透射光线,以消除从所述透镜阵列的第一透镜出射的透射光线和从所述透镜阵列的第二透镜出射的透射光线之间发生的串扰;其中,所述预设值为所述透镜阵列中的透镜的直径与所述透镜阵列和所述光纤面板之间的距离的比值。In a possible design, the light guiding component is a fiber optic panel, and the numerical aperture of the fiber optic panel is less than a preset value, so that the fiber optic panel receives the transmitted light from the lens array at a preset angle range. And eliminating crosstalk occurring between transmitted light emitted from the first lens of the lens array and transmitted light emitted from the second lens of the lens array; wherein the preset value is in the lens array The ratio of the diameter of the lens to the distance between the lens array and the fiber optic panel.
在本申请实施例中,光纤面板的数值孔径小于预设值,从而保证光纤面板接收从透镜阵列出射的预设角度范围内的透射光线,进而能够消除不同的透射光线之间发生的串扰。In the embodiment of the present application, the numerical aperture of the optical fiber panel is smaller than a preset value, thereby ensuring that the optical fiber panel receives the transmitted light within a preset angle range emitted from the lens array, thereby eliminating crosstalk occurring between different transmitted light.
第三方面,本申请实施例提供一种终端设备,该终端设备包括具有透光性的显示屏;第一方面所述的检测装置,用于在一物体与所述检测装置靠近或接触时,获得用于表示所述物体与所述检测装置靠近或接触的一面的纹路的图像的数据;以及处理器,耦合至所述检测装置,用于将所述图像的数据转化为所述图像,并识别所述图像是否为设定的图像。In a third aspect, the embodiment of the present application provides a terminal device, where the terminal device includes a display having a light transmissive property; and the detecting device of the first aspect is configured to: when an object approaches or contacts the detecting device, Obtaining data for an image representing a texture of a side of the object in proximity or contact with the detecting device; and a processor coupled to the detecting device for converting data of the image into the image, and It is recognized whether the image is a set image.
第四方面,本申请实施例提供一种终端设备,该终端设备包括具有透光性的显示屏;如第二方面所述的检测装置,用于在一物体与所述显示屏靠近或接触时,获得用于表示所述物体与所述显示屏靠近或接触的一面的纹路的图像的数据;以及处理器,耦合至所述检测装置,用于将所述图像的数据转化为所述图像,并识别所述图像是否为设定的图像。In a fourth aspect, the embodiment of the present application provides a terminal device, where the terminal device includes a display having a light transmissive property; and the detecting device according to the second aspect, when the object is close to or in contact with the display screen Obtaining data for an image of a texture representing a side of the object in proximity or contact with the display screen; and a processor coupled to the detecting means for converting data of the image into the image, And identifying whether the image is a set image.
本申请实施例提供一种检测装置及终端设备,用于提高显示屏下的光学识别的精准度。The embodiment of the present application provides a detecting device and a terminal device for improving the accuracy of optical recognition under the display screen.
第五方面,本申请实施例提供一种检测装置,包括:发光组件,用于发出初始光线;准直组件,用于在一物体的表面接触或靠近具有透光性的显示屏的上表面时,控制所述发光组件中不同的发光光源发出的初始光线透过所述显示屏照射到所述物体的表面的不同区域上,所述初始光线经过所述物体的反射形成的反射光线透过所述显示屏形成反馈光线;图像传感器,用于通过接收所述反馈光线,形成用于表示接触或靠近所述上表面的所述物体的表面的纹路的图像的数据。In a fifth aspect, an embodiment of the present application provides a detecting apparatus, comprising: a light emitting component for emitting initial light; and a collimating component for contacting an object on a surface of the object or a light transmissive display screen Controlling, by the display screen, the initial light emitted by the different light-emitting sources in the light-emitting component to be irradiated onto different areas of the surface of the object, and the reflected light formed by the reflection of the initial light through the object passes through The display screen forms a feedback ray; an image sensor for forming data for representing an image of the texture of the surface of the object contacting or near the upper surface by receiving the feedback ray.
在本申请实施例中,通过准直组件控制初始光线的传播方向,使得发光组件中不同的光源发出的初始光线经照射在物体的表面不同区域上,不同区域中各区域之间不重叠,这样照射在不同区域的初始光线经物体反射后形成的反射光线之间不会发生串扰,继而反射光线透过显示屏形成的反馈光线之间也不会发生串扰,从而使得图像传感器在接收反馈光线后能够形成用于表示纹路较为清晰的图像的数据,进而实现更精确的纹路检测,提高了显示屏下光学识别的精准度。In the embodiment of the present application, the direction of propagation of the initial light is controlled by the collimating component, so that the initial light emitted by different light sources in the light-emitting component is irradiated on different areas of the surface of the object, and the regions in different regions do not overlap. Crosstalk is not generated between the reflected rays formed by the initial rays irradiated in different regions after being reflected by the object, and then the reflected light formed by the reflected light passing through the display screen does not crosstalk, so that the image sensor receives the feedback light. It can form data for representing images with clear lines, thereby achieving more accurate texture detection and improving the accuracy of optical recognition under the display.
在一个可能的设计中,所述准直组件包括:透光部分和挡光部分,所述透光部分设置在相邻的挡光部分之间,所述挡光部分用于阻挡所述初始光线照射到所述显示屏的像素电极上,以控制所述初始光线由所述透光部分,从相邻的像素电极之间的间隙照射到所述物体的表面的不同区域上。In one possible design, the collimating assembly includes: a light transmitting portion disposed between adjacent light blocking portions, and a light blocking portion for blocking the initial light Irradiation is applied to the pixel electrode of the display screen to control the initial light to be irradiated from the light transmitting portion to a different region of the surface of the object from a gap between adjacent pixel electrodes.
在本申请实施例中,挡光部分阻挡初始光线照射到显示屏的像素电极上,限制了初始光线的入射角度,避免初始光线照射到像素电极的背面后被反射回来,无法照射到物体的表面上,从而提高了初始光线照射到物体的表面上的照射射率。In the embodiment of the present application, the light blocking portion blocks the initial light from being irradiated onto the pixel electrode of the display screen, limiting the incident angle of the initial light, preventing the initial light from being reflected back to the back surface of the pixel electrode, and being unable to illuminate the surface of the object. Upper, thereby increasing the irradiance of the initial light onto the surface of the object.
在一个可能的设计中,所述透光部分的深度和宽度的比值大于第一预设阈值。In one possible design, the ratio of the depth to the width of the light transmissive portion is greater than a first predetermined threshold.
在本申请实施例中,通过透光部分的深度和宽度的设置,能够实现对发光组件中不同的光源发出初始光线的角度的控制。In the embodiment of the present application, the control of the angle at which the initial light is emitted by different light sources in the light-emitting component can be realized by the setting of the depth and the width of the light-transmitting portion.
在一个可能设计中,所述挡光部分为挡光块,所述相邻的挡光块之间的间隙构成所述透光部分。In one possible design, the light blocking portion is a light blocking block, and a gap between the adjacent light blocking blocks constitutes the light transmitting portion.
在本申请实施例中,将挡光块按照一定的间隔设置在显示屏的下表面以形成准直组件,该间隔与显示屏的相邻的像素电极之间的间隔相匹配。In the embodiment of the present application, the light blocking blocks are disposed on the lower surface of the display screen at a certain interval to form a collimating assembly that matches the spacing between adjacent pixel electrodes of the display screen.
在本申请实施例中,还可以在挡光块之间填充具有透光性的块状物,在此不作限制。In the embodiment of the present application, a light-transmitting block may be filled between the light blocking blocks, which is not limited herein.
在一个可能的设计中,所述准直组件包括:不透光层,在所述不透光层上开设有通孔阵列,所述通孔阵列构成所述透光部分,所述不透光层上除所述通孔阵列之外的其它区域构成所述挡光部分。In a possible design, the collimating assembly includes: an opaque layer, an array of through holes is formed on the opaque layer, the through hole array constitutes the transparent portion, and the opaque portion Other regions on the layer other than the array of vias constitute the light blocking portion.
在本申请实施例中,还可以是在显示屏的下表面设置不透光层,在不透光层上开设通孔阵列,以形成挡光部分和透光部分。In the embodiment of the present application, the opaque layer may be disposed on the lower surface of the display screen, and the through hole array is formed on the opaque layer to form the light blocking portion and the light transmitting portion.
在一个可能的设计中,所述准直组件包括:在垂直方向上堆叠设置的N层不透光层,所述N层不透光层中的每层不透光层开设有通孔阵列,所述每层不透光层开设的通孔阵列的位置完全重合,所述N层不透光层中的通孔阵列构成所述透光部分,所述N层不透光层上除所述通孔阵列之外的其它区域构成所述挡光部分,N为大于2的整数。In one possible design, the collimating assembly includes: an N-layer opaque layer stacked in a vertical direction, and each of the N opaque layers is provided with an array of through holes. The positions of the through-hole arrays in each of the opaque layers are completely coincident, and the array of through holes in the N-layer opaque layer constitutes the transparent portion, and the N-layer opaque layer is Other regions than the via array constitute the light blocking portion, and N is an integer greater than 2.
在本申请实施例中,还可以将开设通孔阵列的N层不透光层在显示屏的下表面的垂直方向上堆叠设置,以形成挡光部分和透光部分。In the embodiment of the present application, the N-layer opaque layer of the through-hole array may be stacked in a vertical direction of the lower surface of the display screen to form a light-blocking portion and a light-transmitting portion.
在本申请实施例中,每层不透光层可以是硅基板,也可以是具有其它结构的层,例 如每层不透光层包括第一子层和蒸镀在第一子层的下表面的第二子层;其中,第一子层的材料是具有透光性的材料,例如具有透光性的塑料,或者是玻璃,第二子层的材料是不具有透光性的材料,例如不具透光性薄膜,可以是金属薄膜、黑色聚酯薄膜(Polyseter Film,PET)或者黑胶层。In the embodiment of the present application, each opaque layer may be a silicon substrate, or may be a layer having other structures, for example, each opaque layer includes a first sub-layer and is vapor-deposited on the lower surface of the first sub-layer. a second sub-layer; wherein the material of the first sub-layer is a light transmissive material, such as a translucent plastic or glass, and the material of the second sub-layer is a material that does not have translucency, such as It is not a light transmissive film and may be a metal film, a black polyester film (PET) or a black rubber layer.
在一个可能的设计中,所述图像传感器均匀设置在所述发光组件中相邻的光源之间的间隔区域中的每个间隔区域;或所述图像传感器设置在所述发光组件的正下方区域。In one possible design, the image sensor is uniformly disposed in each of the spaced regions between adjacent light sources in the light emitting component; or the image sensor is disposed directly under the light emitting component .
以上为给出几种图像传感器的设置位置,例如均匀设置在相邻的光源之间的间隔区域中的每个间隔区域,或者设置在发光组件的正下方区域,在此不作限制。The above is to give the setting positions of several image sensors, for example, each of the spaced regions uniformly disposed between adjacent light sources, or disposed directly under the light-emitting component, which is not limited herein.
第六方面,本申请实施例提供一种检测装置,包括:发光组件,用于发出初始光线;In a sixth aspect, an embodiment of the present application provides a detecting apparatus, including: a light emitting component, configured to emit initial light;
具有透光性的显示屏,包括平行设置的盖板玻璃和基板玻璃;用于在一物体的表面接触或靠近所述显示屏的上表面时,控制所述发光组件中不同的发光光源发出的初始光线透过所述盖板玻璃照射到所述物体的表面的不同区域上,所述初始光线经过所述物体的反射形成的反射光线透过所述基板玻璃形成反馈光线;图像传感器,用于通过接收所述反馈光线,形成用于表示接触或靠近所述上表面的所述物体的表面的纹路的图像的数据。a transmissive display screen comprising a cover glass and a substrate glass disposed in parallel; for controlling the emission of different illumination sources in the illumination assembly when the surface of the object contacts or is adjacent to the upper surface of the display screen The initial light is transmitted through the cover glass to different regions of the surface of the object, and the reflected light formed by the reflection of the initial light through the object passes through the substrate glass to form feedback light; the image sensor is used for By receiving the feedback ray, data for representing an image of the texture of the surface of the object contacting or near the upper surface is formed.
在本申请实施例中,通过显示屏控制初始光线的传播方向,使得发光组件中不同的光源发出的初始光线照射在物体的表面上的不同区域,不同区域中各区域之间不重叠,这样照射在不同区域的光线经物体反射后形成的反射光线之间不会发生串扰,继而反射光线透过显示屏形成的反馈光线之间也不会发生串扰,从而使得图像传感器在接收反馈光线后能够形成用于表示纹路较为清晰的图像的数据,进而实现更精确的纹路检测,提高了显示屏下光学识别的精准度。In the embodiment of the present application, the direction of propagation of the initial light is controlled by the display screen, so that the initial light emitted by different light sources in the light-emitting component is irradiated on different regions on the surface of the object, and the regions in different regions do not overlap each other. Crosstalk is not generated between the reflected light rays reflected by the objects in different areas, and then the reflected light formed by the reflected light does not crosstalk between the reflected light, so that the image sensor can form after receiving the feedback light. It is used to represent the data of the image with clearer texture, thus achieving more accurate texture detection and improving the accuracy of optical recognition under the display.
在一个可能的设计中,所述基板玻璃包括:In one possible design, the substrate glass comprises:
透光部分和挡光部分,所述透光部分设置在相邻的挡光部分之间,所述挡光部分用于阻挡所述初始光线照射到所述显示屏的像素电极上,以控制所述初始光线由所述透光部分,从相邻的像素电极之间的间隙照射到所述物体的表面的不同区域上。a light transmitting portion disposed between the adjacent light blocking portions, the light blocking portion for blocking the initial light from being incident on the pixel electrode of the display screen to control the The initial light is irradiated from the light transmitting portion from a gap between adjacent pixel electrodes to different regions of the surface of the object.
在本申请实施例中,挡光部分阻挡初始光线照射到显示屏的像素电极上,限制了初始光线的入射角度,避免初始光线照射到像素电极的背面后被反射回来,无法照射到物体的表面上,从而提高了初始光线照射到物体的表面上的照射射率。In the embodiment of the present application, the light blocking portion blocks the initial light from being irradiated onto the pixel electrode of the display screen, limiting the incident angle of the initial light, preventing the initial light from being reflected back to the back surface of the pixel electrode, and being unable to illuminate the surface of the object. Upper, thereby increasing the irradiance of the initial light onto the surface of the object.
第七方面,本申请实施例提供一种终端设备,包括:具有透光性的显示屏;如第一方面所述的检测装置,用于在一物体与所述显示屏靠近或接触时,获得用于表示所述物体与所述显示屏靠近或接触的表面的纹路的图像的数据;处理器,耦合至所述检测装置,用于将所述图像的数据转化为所述图像,并识别所述图像是否为设定的图像。In a seventh aspect, the embodiment of the present application provides a terminal device, including: a display having a light transmissive property; and the detecting device according to the first aspect, configured to obtain an object when approaching or contacting the display screen Data for an image representing a texture of a surface of the object in proximity or contact with the display screen; a processor coupled to the detecting means for converting data of the image into the image and identifying Whether the image is a set image.
在一个可能的设计中,所述终端设备还包括:传感器,耦合至所述处理器,用于检测触控操作,所述触控操作用于激活所述检测装置的检测功能;在所述检测装置的检测功能被激活后,所述处理器还用于:确定所述触控操作的触控位置;控制所述检测装置的发光组件中包括的与所述触控位置对应位置处的光源处于点亮状态,所述发光组件中的其它光源处于关闭状态。In a possible design, the terminal device further includes: a sensor coupled to the processor for detecting a touch operation, the touch operation for activating a detection function of the detecting device; After the detecting function of the device is activated, the processor is further configured to: determine a touch position of the touch operation; and control a light source at a position corresponding to the touch position included in the light emitting component of the detecting device In the illuminated state, the other light sources in the lighting assembly are in a closed state.
在本申请实施例中,处理器还用于根据触控操作的触控位置,控制发光组件中光源的点亮状态,也就是与触控位置对应位置处的光源处于点亮状态,发光组件中的其它光 源处于关闭状态,以降低终端设备的功耗。In the embodiment of the present application, the processor is further configured to control, according to the touch position of the touch operation, a lighting state of the light source in the light emitting component, that is, the light source at the position corresponding to the touch position is in a lighting state, and the light emitting component is in the light emitting component. The other light sources are off to reduce the power consumption of the terminal device.
第八方面,本申请实施例提供一种终端,包括:如第二方面所述的检测装置,用于在一物体与所述检测装置靠近或接触时,获得用于表示所述物体与所述检测装置靠近或接触的表面的纹路的图像的数据;处理器,耦合至所述检测装置,用于将所述图像的数据转化为所述图像,并识别所述图像是否为设定的图像。In an eighth aspect, the embodiment of the present application provides a terminal, comprising: the detecting device according to the second aspect, configured to: when an object is in proximity or contact with the detecting device, obtain the object and the Data for detecting an image of the texture of the surface of the device in proximity or contact; a processor coupled to the detection device for converting data of the image into the image and identifying whether the image is a set image.
在本申请实施例中,通过准直组件控制初始光线的传播方向,使得发光组件中不同的光源发出的初始光线经照射在物体的表面不同区域上,不同区域中各区域之间不重叠,这样照射在不同区域的初始光线经物体反射后形成的反射光线之间不会发生串扰,继而反射光线透过显示屏形成的反馈光线之间也不会发生串扰,从而使得图像传感器在接收反馈光线后能够形成用于表示纹路较为清晰的图像的数据,进而实现更精确的纹路检测,提高了显示屏下光学识别的精准度。In the embodiment of the present application, the direction of propagation of the initial light is controlled by the collimating component, so that the initial light emitted by different light sources in the light-emitting component is irradiated on different areas of the surface of the object, and the regions in different regions do not overlap. Crosstalk is not generated between the reflected rays formed by the initial rays irradiated in different regions after being reflected by the object, and then the reflected light formed by the reflected light passing through the display screen does not crosstalk, so that the image sensor receives the feedback light. It can form data for representing images with clear lines, thereby achieving more accurate texture detection and improving the accuracy of optical recognition under the display.
附图说明DRAWINGS
图1为现有技术中光学纹路成像模糊的示意图;1 is a schematic view showing blurring of optical grain imaging in the prior art;
图2为本申请实施例提供的一种检测装置的结构示意图;2 is a schematic structural diagram of a detecting apparatus according to an embodiment of the present application;
图3为本申请实施例提供的一种检测装置中发光组件的示意图;3 is a schematic diagram of a light emitting component in a detecting device according to an embodiment of the present application;
[根据细则91更正 10.05.2018] 
图4为本申请实施例提供的一种显示屏的结构示意图;
图5为本申请实施例提供的一种检测装置中准直组件的结构示意图;
[Correct according to Rule 91 10.05.2018]
4 is a schematic structural diagram of a display screen according to an embodiment of the present application;
FIG. 5 is a schematic structural diagram of a collimating component in a detecting device according to an embodiment of the present disclosure;
图6为本申请实施例提供的一种检测装置中导光组件的结构示意图;FIG. 6 is a schematic structural diagram of a light guiding component in a detecting device according to an embodiment of the present disclosure;
图7为本申请实施例提供的一种检测装置中导光组件的另一结构示意图;FIG. 7 is another schematic structural diagram of a light guiding component in a detecting device according to an embodiment of the present disclosure;
图8为本申请实施例提供的一种检测装置中导光组件为光纤面板时的光线传输路径示意图;FIG. 8 is a schematic diagram of a light transmission path when a light guiding component is a fiber optic panel in a detecting device according to an embodiment of the present disclosure;
图9为本申请实施例提供的一种检测装置中导光组件的另一结构示意图;FIG. 9 is another schematic structural diagram of a light guiding component in a detecting device according to an embodiment of the present disclosure;
图10为本申请实施例提供的一种检测装置中导光组件的另一结构示意图;FIG. 10 is another schematic structural diagram of a light guiding component in a detecting device according to an embodiment of the present disclosure;
图11为本申请实施例提供的另一种检测装置的结构示意图;FIG. 11 is a schematic structural diagram of another detecting apparatus according to an embodiment of the present application;
图12为本申请实施例提供的一种终端设备的结构示意图;FIG. 12 is a schematic structural diagram of a terminal device according to an embodiment of the present disclosure;
图13为本申请实施例提供的另一终端设备的结构示意图;FIG. 13 is a schematic structural diagram of another terminal device according to an embodiment of the present application;
图14为现有技术中显示模组的结构示意图;14 is a schematic structural view of a display module in the prior art;
图15为本申请实施例提供的一种检测装置的结构示意图;FIG. 15 is a schematic structural diagram of a detecting apparatus according to an embodiment of the present application;
图16为本申请实施例提供的从显示屏出射的反馈光线的光路示意图;16 is a schematic diagram of an optical path of a feedback light emitted from a display screen according to an embodiment of the present application;
图17为本申请实施例提供的一种准直组件的结构示意图;FIG. 17 is a schematic structural diagram of a collimating component according to an embodiment of the present application;
图18为本申请实施例提供的一种准直组件的结构示意图;FIG. 18 is a schematic structural diagram of a collimating component according to an embodiment of the present application;
图19为本申请实施例提供的另一种准直组件的结构示意图;FIG. 19 is a schematic structural diagram of another collimating component according to an embodiment of the present disclosure;
图20为本申请实施例提供的另一种准直组件的结构示意图;FIG. 20 is a schematic structural diagram of another collimating component according to an embodiment of the present disclosure;
图21为本申请实施例提供的一种检测装置中图像传感器的设置方式的示意图;FIG. 21 is a schematic diagram of a manner of setting an image sensor in a detecting device according to an embodiment of the present disclosure;
图22为本申请实施例提供的一种检测装置中图像传感器的设置方式的示意图;FIG. 22 is a schematic diagram of a manner of setting an image sensor in a detecting device according to an embodiment of the present disclosure;
图23为本申请实施例提供另一种终端设备的结构示意图;FIG. 23 is a schematic structural diagram of another terminal device according to an embodiment of the present application;
图24为本申请实施例提供的显示屏的基板玻璃的结构示意图;24 is a schematic structural diagram of a substrate glass of a display screen according to an embodiment of the present application;
图25为本申请实施例提供的一种终端设备的结构示意图;FIG. 25 is a schematic structural diagram of a terminal device according to an embodiment of the present disclosure;
图26为本申请实施例提供的另一种终端设备的结构示意图。FIG. 26 is a schematic structural diagram of another terminal device according to an embodiment of the present application.
具体实施方式detailed description
为了使本申请的目的、技术方案和优点更加清楚,下面将结合附图对本申请作进一步地详细描述。In order to make the objects, technical solutions and advantages of the present application more clear, the present application will be further described in detail below with reference to the accompanying drawings.
第一方面,参见图2,本申请实施例提供一种检测装置,用于实现更为精确的识别。该检测装置包括:In a first aspect, referring to FIG. 2, an embodiment of the present application provides a detecting apparatus for achieving more accurate identification. The detection device comprises:
发光组件200,用于发出初始光线;a light emitting component 200 for emitting initial light;
控制组件201,用于控制从具有透光性的显示屏出射的反馈光线的传播方向,以形成成像光线,其中,反馈光线为在一物体靠近或接触所述显示屏时,在初始光线的照射下,物体靠近或接触所述显示屏的一面的纹路所反射的光线;The control component 201 is configured to control a propagation direction of the feedback light emitted from the light-transmitting display screen to form an imaging light, wherein the feedback light is an illumination of the initial light when an object approaches or contacts the display screen Light that is reflected by an object that is near or in contact with the grain of one side of the display screen;
图像传感器202,用于通过接收所述成像光线,形成用于表示所述物体靠近或接触所述显示模组的一面的纹路的图像的数据。The image sensor 202 is configured to form data for indicating an image of the texture of the object approaching or contacting one side of the display module by receiving the imaging light.
在本申请实施例中,通过控制组件201控制反馈光线的传播方向,能够消除不同的反馈光线之间产生的串扰,从而使得图像传感器202在接收成像光线后能够形成用于表示纹路较为清晰的图像的数据,进而实现更精确化的纹路检测,提高显示屏下光学识别的精准度。In the embodiment of the present application, the control component 201 controls the propagation direction of the feedback light, and the crosstalk generated between the different feedback rays can be eliminated, so that the image sensor 202 can form an image for indicating a clear texture after receiving the imaging light. The data, in turn, achieves more precise texture detection and improves the accuracy of optical recognition under the display.
在本申请实施例中,发光组件200为设置在显示屏外部的光源。发光组件200可以为设置在显示屏的下表面的正下方区域的阵列光源,阵列光源可以由LED光源构成,也可以由激光光源构成,或者可以由红外光光源构成。在本申请实施例中,阵列光源设置的区域也就是检测装置上用于检测纹路的区域,在该区域内光源以等间距排列形成阵列,例如5×4的阵列,请参考图3。In the embodiment of the present application, the light emitting component 200 is a light source disposed outside the display screen. The light-emitting assembly 200 may be an array light source disposed directly under the lower surface of the display screen. The array light source may be composed of an LED light source, or may be composed of a laser light source, or may be composed of an infrared light source. In the embodiment of the present application, the area where the array light source is disposed is the area for detecting the texture on the detecting device, in which the light sources are arranged at equal intervals to form an array, for example, a 5×4 array, please refer to FIG. 3.
在本申请实施例中,显示屏具有透光性,当物体的一面与显示屏的上表面靠近或接触时,发光组件200发出的初始光线能够穿透显示屏照射在物体的一面上,经物体反射形成的反射光线透过显示屏形成物体的一面的纹路的反馈光线。其中,显示屏可以为有机发光二极管(Organic Light-Emitted Diode,OLED)、发光二极管(Light-Emitted Diode,LED)、或软性有机发光二极管(Flexible OLED,FOLED)等。In the embodiment of the present application, the display screen has light transmissivity. When one side of the object is close to or in contact with the upper surface of the display screen, the initial light emitted by the light emitting component 200 can penetrate the display screen to illuminate one side of the object, and the object passes through the object. The reflected light formed by the reflection passes through the display screen to form a feedback light of the texture of one side of the object. The display screen can be an Organic Light-Emitted Diode (OLED), a Light-Emitted Diode (LED), or a Flexible OLED (FOLED).
请参考图4,显示屏以OLED为例,整个结构层包括:盖板玻璃400;偏光片401,通过光学胶与盖板玻璃400贴合设置;封装玻璃402,贴合设置在偏光片401的下表面;阴极403,设置在封装玻璃400的下表面;发光层404,设置在阴极403的下表面;阳极405,设置在发光层404的下表面,以及基底玻璃406,其中,阴极403和阳极405的交叉点形成像素,每个像素对应位置处的由阴极403和阳极405构成的电极对为像素电极,像素电极中相邻像素电极之间具有间隙。Referring to FIG. 4 , the display screen adopts an OLED as an example. The entire structural layer includes: a cover glass 400; a polarizer 401 is disposed on the cover glass 400 through an optical adhesive; and the package glass 402 is disposed on the polarizer 401. a lower surface; a cathode 403 disposed on a lower surface of the package glass 400; a light-emitting layer 404 disposed on a lower surface of the cathode 403; an anode 405 disposed on a lower surface of the light-emitting layer 404, and a base glass 406, wherein the cathode 403 and the anode The intersection of 405 forms a pixel, and the electrode pair composed of the cathode 403 and the anode 405 at the corresponding position of each pixel is a pixel electrode, and a gap is formed between adjacent pixel electrodes in the pixel electrode.
请参考图5,由于阵列光源中的每个光源都会向不同方向发出初始光线,为了减少初始光线的散射,在本申请实施例中,检测装置还包括准直组件500,用于控制初始光线的照射范围。其中,初始光线经准直组件500处理后,可以获得从预定角度范围内入射显示屏的初始光线,也就是控制初始光线照射在物体的一面上所述预定角度范围所覆盖的区域上。例如,以阵列光源中的第一光源和第二光源为例,第一光源发出的初始光 线经准直组件500处理后从预定角度范围入射显示屏,照射在物体的一面上的第一区域,第二光源发出的初始光线经准直组件500处理后从预定角度范围入射显示屏,照射在物体的一面上的第二区域,第一区域与第二区域不重叠。Referring to FIG. 5, since each of the light sources in the array source emits initial light in different directions, in order to reduce the scattering of the initial light, in the embodiment of the present application, the detecting device further includes a collimating component 500 for controlling the initial light. Irradiation range. Wherein, after the initial light is processed by the collimating assembly 500, an initial ray incident on the display screen from a predetermined range of angles can be obtained, that is, the area where the predetermined angle range covered by the initial light illuminating on one side of the object is controlled. For example, taking the first light source and the second light source in the array light source as an example, the initial light emitted by the first light source is processed by the collimating component 500 and then incident on the display screen from a predetermined angle range to illuminate the first area on one side of the object. The initial light emitted by the second light source is processed by the collimating assembly 500 to enter the display screen from a predetermined range of angles, illuminating a second region on one side of the object, the first region and the second region not overlapping.
在本申请实施例中,准直组件500包括透光部分和挡光部分。透光部分和挡光部分的实现方式包括但不限于以下两种,下面分别进行描述。In the embodiment of the present application, the collimating assembly 500 includes a light transmitting portion and a light blocking portion. The implementation of the light transmitting portion and the light blocking portion includes, but is not limited to, the following two, which are separately described below.
方式A、在显示屏的下表面设置挡光层,在挡光层上开设通孔阵列,其中,通孔即为透光部分,挡光层上除通孔外的其它部分即为挡光部分,即,在方式A中,准直组件500就包括挡光层和在挡光层上开设的通孔阵列。初始光线经通孔阵列中的通孔,通过与通孔对应的相邻的像素电极之间的间隙透过显示屏照射到物体一面上的不同区域。In the method A, a light blocking layer is disposed on the lower surface of the display screen, and a through hole array is formed on the light blocking layer, wherein the through hole is a light transmitting portion, and the other portion of the light blocking layer except the through hole is a light blocking portion That is, in the mode A, the collimating assembly 500 includes a light blocking layer and an array of through holes formed in the light blocking layer. The initial light passes through the through holes in the through hole array, and the gap between the adjacent pixel electrodes corresponding to the through holes is transmitted through the display screen to different areas on one side of the object.
本申请实施例中,挡光层的材料可以为不透光的材料,例如黑色塑料薄膜、硅片或金属薄片等。In the embodiment of the present application, the material of the light blocking layer may be an opaque material, such as a black plastic film, a silicon wafer or a metal foil.
方式B、在显示屏的下表面设置挡光块,其中,挡光块即为挡光部分,相邻的挡光块之间的间隙即为透光部分,即,在方式B中,准直组件500就包括挡光块和相邻的挡光块之间的间隙。初始光线经挡光块中相邻挡光块之间的间隙,通过与相邻挡光块之间的间隙对应的相邻的像素电极之间的间隙透过显示屏照射到物体的一面上的不同区域。In the mode B, a light blocking block is disposed on the lower surface of the display screen, wherein the light blocking block is the light blocking portion, and the gap between the adjacent light blocking blocks is the light transmitting portion, that is, in the mode B, the collimation Assembly 500 includes a gap between the light blocking block and the adjacent light blocking block. The initial light passes through the gap between the adjacent light blocking blocks in the light blocking block, and the gap between the adjacent pixel electrodes corresponding to the gap between the adjacent light blocking blocks is transmitted to one side of the object through the display screen. different regions.
在本申请实施例中,由于显示屏的像素电极具有强不透光性,且像素电极背面,即像素电极的朝向显示屏的下表面的一面具有强反射性,也就是照射到像素电极的背面的初始光线会发生强反射,因此,在像素电极处会形成挡光部分,使得初始光线从相邻的挡光部分之间的透光部分入射,限制了入射光线的入射角度,避免初始光线照射到像素电极的背面后被反射回来,无法入射显示屏,从而提高了初始光线照射到物体的一面的照射率。In the embodiment of the present application, since the pixel electrode of the display screen has strong opacity, and the back surface of the pixel electrode, that is, the side of the pixel electrode facing the lower surface of the display screen, is highly reflective, that is, irradiated to the back surface of the pixel electrode. The initial light will be strongly reflected. Therefore, a light blocking portion is formed at the pixel electrode, so that the initial light is incident from the light transmitting portion between the adjacent light blocking portions, which limits the incident angle of the incident light and avoids the initial light irradiation. After being reflected to the back side of the pixel electrode, it is reflected back and cannot enter the display screen, thereby increasing the irradiation rate of the initial light to the side of the object.
在本申请实施例中,初始光线照射到物体的一面,经物体反射后形成的反射光线透过显示屏形成反馈光线,由于反馈光线之间可能会产生串扰,为避免反馈光线之间的串扰,通过控制组件201控制反馈光线的传播方向,以形成成像光线。In the embodiment of the present application, the initial light is irradiated to one side of the object, and the reflected light formed by the object is reflected by the display screen to form a feedback light. Since crosstalk may occur between the feedback light, in order to avoid crosstalk between the feedback light, The direction of propagation of the feedback ray is controlled by control component 201 to form imaging ray.
在本申请实施例中,控制组件201包括:In the embodiment of the present application, the control component 201 includes:
透镜阵列,用于汇聚反馈光线,以形成入射图像传感器202的透射光线;a lens array for collecting feedback light to form a transmitted light of the incident image sensor 202;
导光组件,设置在透镜阵列和图像传感器202之间,用于消除从所述透镜阵列中每个透镜出射的透射光线之间发生的串扰,以形成成像光线。A light directing assembly is disposed between the lens array and image sensor 202 for eliminating crosstalk occurring between transmitted light emerging from each lens in the array of lenses to form imaged light.
在本申请实施例中,透镜阵列用于对接收的反馈光线进行聚焦。在具体实现过程中,由于终端设备越来越向轻薄化发展,这样检测装置的体积受到限制,如果要保证检测装置的厚度在一定的范围内,则透镜的厚度也要在一定范围内。而当透镜的厚度一定时,透镜的焦距越短,透镜的直径也较小,那么在透镜的直径较小的情况下,透镜接收出射光线的角度范围较小,那么为保证能够接收从显示屏出射的任意角度的出射光线,并对出射光线进行汇聚,需要设置透镜阵列。在本申请实施例中,透镜阵列中的相邻透镜之间的间隙相同,且透镜阵列中每个透镜的直径均相同、每个透镜的焦距也均相同。In an embodiment of the present application, a lens array is used to focus the received feedback light. In the specific implementation process, since the terminal device is increasingly thinner and lighter, the volume of the detecting device is limited. If the thickness of the detecting device is to be within a certain range, the thickness of the lens is also within a certain range. When the thickness of the lens is constant, the shorter the focal length of the lens and the smaller the diameter of the lens, the smaller the angle of the lens, the smaller the angle of the lens to receive the emitted light, so that the lens can be received from the display. A beam array is required to emit light at any angle and to converge the outgoing light. In the embodiment of the present application, the gap between adjacent lenses in the lens array is the same, and the diameter of each lens in the lens array is the same, and the focal length of each lens is also the same.
在本申请实施例中,透镜阵列包括的每个透镜的直径在预设直径范围内,例如预设直径范围为[5微米(um),600um],其中,考虑到透镜的加工精度和图像的分辨率,透镜的直径取值具体可以为50um。透镜阵列包括的每个透镜的焦距在预设焦距范围内,例如预设焦距范围为[20um,800um],其中,考虑到透镜的加工精度和图像的分辨率,透 镜的焦距的取值具体可以为50um。其中,透镜阵列包括的透镜的材料可以是树脂、塑料、或玻璃等。In the embodiment of the present application, the diameter of each lens included in the lens array is within a preset diameter range, for example, the preset diameter ranges from [5 micrometers (um), 600 um], wherein the processing precision and image of the lens are taken into consideration. Resolution, the diameter of the lens can be specifically 50um. The focal length of each lens included in the lens array is within a preset focal length range, for example, the preset focal length range is [20 um, 800 um], wherein the focal length of the lens may be specifically considered in consideration of the processing precision of the lens and the resolution of the image. It is 50um. The material of the lens included in the lens array may be resin, plastic, or glass.
在本申请实施例中,在透镜阵列完成对反馈光线的汇聚之后,则通过导光组件将从透镜阵列透射出来的透射光线传输到图像传感器202。In the embodiment of the present application, after the lens array completes the convergence of the feedback light, the transmitted light transmitted from the lens array is transmitted to the image sensor 202 through the light guiding component.
在本申请实施例中,导光组件的实现方式包括但不限于以下三种,下面分别介绍。其中,下文中将在挡光层上开设的通孔阵列称为第一通孔阵列。In the embodiment of the present application, the implementation manner of the light guiding component includes, but is not limited to, the following three types, which are respectively introduced below. The array of via holes opened on the light blocking layer is hereinafter referred to as a first via array.
导光组件的实现方式一Implementation of the light guiding component
导光组件包括:不透光层,不透光层开设有通孔阵列,下文中将在不透光层开设的通孔阵列称为第二通孔阵列,第二通孔阵列包括贯穿不透光层的第一通孔和第二通孔;其中,第一通孔和第二通孔之间具有隔断,以消除从所述第一透镜出射的透射光线和从所述第二透镜出射的透射光线之间发生的串扰。The light guiding component comprises: an opaque layer, and the opaque layer is provided with an array of through holes. Hereinafter, the array of through holes formed in the opaque layer is referred to as a second through hole array, and the second through hole array includes through holes. a first through hole and a second through hole of the optical layer; wherein the first through hole and the second through hole have a partition to eliminate transmitted light emitted from the first lens and emitted from the second lens Crosstalk that occurs between transmitted rays.
请参考图6,导光组件为开设有第二通孔阵列的不透光层。在本申请实施例中,不透光层的材料可以是黑色塑料薄膜、硅片、金属薄片等。Referring to FIG. 6, the light guiding component is an opaque layer having an array of second via holes. In the embodiment of the present application, the material of the opaque layer may be a black plastic film, a silicon wafer, a metal foil, or the like.
在本申请实施例中,可以通过激光、机械加工压印、或微纳加工等方式在不透光层上开设第二通孔阵列。第二通孔阵列包括第一通孔和第二通孔,当然还可以第三通孔、第四通孔,在本申请实施例中不作限制。其中,第二通孔阵列中的通孔的排列位置与透镜阵列中的透镜的排列位置一一对应。这里的“对应”,是指从某个透镜透射的透射光线从与该透镜对应的通孔出射。例如以第二通孔阵列中的第一通孔和第二通孔、透镜阵列中的第一透镜和第二透镜为例,第一通孔和第一透镜对应,也就是控制从第一透镜透射的透射光线从第一通孔出射,第二通孔和第二透镜对应,也就是控制从第二透镜透射的透射光线从第二通孔出射。In the embodiment of the present application, the second via array may be opened on the opaque layer by laser, mechanical embossing, or micro-nano processing. The second through-hole array includes a first through-hole and a second through-hole, and of course, a third through-hole and a fourth through-hole, which are not limited in the embodiment of the present application. The arrangement positions of the through holes in the second through hole array are in one-to-one correspondence with the arrangement positions of the lenses in the lens array. Here, "corresponding" means that transmitted light transmitted from a certain lens is emitted from a through hole corresponding to the lens. For example, in the first through hole and the second through hole in the second through hole array, the first lens and the second lens in the lens array, the first through hole corresponds to the first lens, that is, the control is from the first lens. The transmitted transmitted light is emitted from the first through hole, and the second through hole corresponds to the second lens, that is, the transmitted light transmitted from the second lens is controlled to exit from the second through hole.
继续以通孔阵列中包括的第一通孔和第二通孔为例,第一通孔和第二通孔之间具有隔断,由于不透光层能够挡光,所以,隔断也能够挡光,从而避免从第一透镜透射的透射光线和从而透镜透射的透射光线之间发生串扰。For example, the first through hole and the second through hole included in the through hole array are separated, and the first through hole and the second through hole are separated. Since the opaque layer can block light, the partition can also block light. Thereby, crosstalk between the transmitted light transmitted from the first lens and the transmitted light transmitted through the lens is avoided.
在具体实现过程中,当通孔的深度没有达到预设深度,也就是第二通孔阵列中的每个通孔和图像传感器202之间还有一定距离时,从通孔出射的光线之间仍可能会产生串扰。因此,为了更好的消除从不同透镜透射的透射光线之间的串扰,在本申请实施例中,不透光层的厚度小于或等于从透镜的光心到图像传感器202之间的垂直距离,或者,第二通孔阵列中通孔的深宽比大于预设值,例如,3:1、5:1或者为10:1,其中,通孔的深宽比为通孔的深度和孔径的比值,也就是不透光层的厚度和孔径的比值。当通孔的孔径一定,通孔的深宽比越大时,通孔的深度越深,通孔的底端与图像传感器202之间的距离也就越小,从通孔出射的光线直接照射在图像传感器202上与该通孔的投影所在的区域上,例如,从第一透镜透射的透射光线经第一通孔出射到图像传感器202上第一通孔的投影所在的第一区域,从第二透镜透射的透射光线经第二通孔出射到图像传感器202上第二通孔的投影所在的第二区域,避免从第一透镜透射的透射光线经第一通孔出射到第二区域和/或从第二透镜透射的透射光线经第二通孔出射到第一区域,从而能够进一步消除从透镜透射的透射光线之间的串扰。In a specific implementation process, when the depth of the through hole does not reach a preset depth, that is, when there is a certain distance between each of the through holes in the second through hole array and the image sensor 202, between the light rays exiting the through hole Crosstalk may still occur. Therefore, in order to better eliminate crosstalk between transmitted light transmitted from different lenses, in the embodiment of the present application, the thickness of the opaque layer is less than or equal to the vertical distance from the optical center of the lens to the image sensor 202. Alternatively, the aspect ratio of the via hole in the second via array is greater than a preset value, for example, 3:1, 5:1, or 10:1, wherein the aspect ratio of the via is the depth of the via and the aperture The ratio, that is, the ratio of the thickness of the opaque layer to the aperture. When the aperture of the through hole is constant, the deeper the aspect ratio of the through hole is, the deeper the depth of the through hole is, the smaller the distance between the bottom end of the through hole and the image sensor 202 is, and the light emitted from the through hole is directly irradiated. On the image sensor 202 and the region where the projection of the through hole is located, for example, the transmitted light transmitted from the first lens is emitted through the first through hole to the first region where the projection of the first through hole on the image sensor 202 is located. The transmitted light transmitted by the second lens is emitted through the second through hole to the second region where the projection of the second through hole on the image sensor 202 is located, so that the transmitted light transmitted from the first lens is prevented from exiting through the first through hole to the second region and / or transmitted light transmitted from the second lens is emitted to the first region through the second through hole, so that crosstalk between the transmitted light transmitted from the lens can be further eliminated.
同时,为了有效地区分从不同透镜投射出的透射光线,第二通孔阵列中的每个通孔的孔径小于或等于透镜阵列中的与每个通孔对应的透镜的直径,例如第一通孔的孔径小 于或等于第一透镜的直径,第二通孔的孔径要小于等于第二透镜的直径,以避免从第二透镜透射的透射光线从第一通孔的顶端直接入射到第一通孔中,与第一通孔中传输的透射光线之间发生串扰。Meanwhile, in order to effectively distinguish the transmitted light projected from the different lenses, the aperture of each of the through holes in the second through hole array is smaller than or equal to the diameter of the lens corresponding to each of the through holes in the lens array, for example, the first pass The aperture of the hole is smaller than or equal to the diameter of the first lens, and the aperture of the second through hole is smaller than or equal to the diameter of the second lens, so as to prevent the transmitted light transmitted from the second lens from directly entering the first pass from the top end of the first through hole. Crosstalk occurs between the holes and the transmitted light transmitted in the first through holes.
在本申请实施例中,为了满足分辨率的要求,也就要求第二通孔阵列中的每个通孔对应一个像素,这样第二通孔阵列中每个通孔的孔径会较小,另一方面,为消除不同的透镜的透射光线之间串扰,第二通孔阵列包括的每个通孔的深度会较深,也就是通孔的深宽比会比较大。而正如(1)中所介绍的,第二通孔阵列是通过激光、机械加工压印、或微加工等方式制作,然而这些加工方式的难度往往随着通孔的深宽比的增加而增加,不利于量产。鉴于此,本申请实施例提出导光组件的实现方式二,请参考图7,即采用光纤面板来消除不同的透镜的透射光线之间的串扰。In the embodiment of the present application, in order to meet the resolution requirement, each through hole in the second through hole array is required to correspond to one pixel, so that the aperture of each through hole in the second through hole array is smaller, and On the one hand, in order to eliminate the crosstalk between the transmitted rays of different lenses, the depth of each of the through holes included in the second via array will be deeper, that is, the aspect ratio of the through holes will be larger. As described in (1), the second via array is fabricated by laser, mechanical imprinting, or micromachining. However, the difficulty of these processing methods tends to increase as the aspect ratio of the via increases. It is not conducive to mass production. In view of this, the embodiment of the present application proposes the implementation of the light guiding component. Referring to FIG. 7, the optical fiber panel is used to eliminate the crosstalk between the transmitted rays of different lenses.
导光组件的实现方式二Light guide component implementation 2
导光组件为光纤面板,光纤面板的数值孔径小于预设值,以使光纤面板接收从透镜阵列出射的在预设角度范围的透射光线,以消除从透镜阵列的第一透镜出射的透射光线和从透镜阵列的第二透镜出射的透射光线之间发生的串扰。其中,预设值根据透镜阵列包括的任意一个透镜的直径和透镜阵列中任意一个透镜与光纤面板之间的距离获得。The light guiding component is a fiber optic panel, and the numerical aperture of the fiber optic panel is less than a preset value, so that the fiber optic panel receives the transmitted light from the lens array at a preset angle range to eliminate the transmitted light emitted from the first lens of the lens array and Crosstalk occurring between transmitted rays emerging from the second lens of the lens array. Wherein, the preset value is obtained according to the diameter of any one of the lenses included in the lens array and the distance between any one of the lens arrays and the fiber optic panel.
光纤面板包括纤芯和包层。其中,纤芯的丝径由透镜阵列中透镜的放大率和纹路识别需要的分辨率获得。例如,在分辨率为500像素,透镜阵列的放大率为2:1时,图像传感器202的单像元最大不能超过25um,而图像传感器202的单像元至少需要4-6根纤芯进行适配,若以4根为例,纤芯的丝径则为6um左右。The fiber optic panel includes a core and a cladding. Among them, the wire diameter of the core is obtained by the magnification required for the lens in the lens array and the resolution required for the texture recognition. For example, when the resolution is 500 pixels and the magnification of the lens array is 2:1, the single pixel of the image sensor 202 cannot exceed 25 um at the maximum, and the single pixel of the image sensor 202 needs at least 4-6 cores. For example, if four are used, the core diameter of the core is about 6um.
在本申请实施例中,为了消除不同的透镜的透射光线之间的串扰,光纤面板的数值孔径小于预设值,以使光纤面板接收从透镜阵列透射的在预设角度范围内的透射光线。例如,
Figure PCTCN2018083219-appb-000001
其中,NA为光纤面板的数值孔径,
Figure PCTCN2018083219-appb-000002
为透镜阵列中的透镜的直径,L为透镜阵列与光纤面板之间的距离。
In the embodiment of the present application, in order to eliminate crosstalk between the transmitted rays of different lenses, the numerical aperture of the optical fiber panel is smaller than a preset value, so that the optical fiber panel receives the transmitted light transmitted from the lens array within a preset angle range. E.g,
Figure PCTCN2018083219-appb-000001
Where NA is the numerical aperture of the fiber optic panel,
Figure PCTCN2018083219-appb-000002
For the diameter of the lens in the lens array, L is the distance between the lens array and the fiber optic panel.
另一方面,光纤面板的数值孔径与纤芯的折射率和包层的折射率相关,当光纤面板的数值孔径较小时,纤芯的折射率和包层的折射率之间的差也较小,例如,当光纤面板的数值孔径为0.14时,纤芯的折射率和包层的折射率之间的差值为0.01;当光纤面板的数值孔径为0.15时,纤芯的折射率和包层的折射率之间的差值为0.02等。On the other hand, the numerical aperture of the fiber optic panel is related to the refractive index of the core and the refractive index of the cladding. When the numerical aperture of the fiber optic panel is small, the difference between the refractive index of the core and the refractive index of the cladding is also small. For example, when the numerical aperture of the fiber optic panel is 0.14, the difference between the refractive index of the core and the refractive index of the cladding is 0.01; when the numerical aperture of the optical fiber panel is 0.15, the refractive index and cladding of the core The difference between the refractive indices is 0.02 or the like.
下面以纤芯的折射率和包层的折射率之间的差值是0.01、对应的纤芯的折射率n 1=1.5122、包层的折射率n 2=1.50137为例,介绍如何确定预设角度范围。 The following is an example of how the difference between the refractive index of the core and the refractive index of the cladding is 0.01, the refractive index of the corresponding core is n 1 = 1.5122, and the refractive index of the cladding is n 2 = 1.50137. Angle range.
请参考图8,当透镜的透射光线以入射角θ 0从光纤面板的第一端面入射,经折射后形成折射光线入射到纤芯的第一界面上。如果折射光线在第一界面上的入射角φ 0大于临界角φ c,折射光线将在第一界面上发生全反射,全反射的光线入射到纤芯的与第一界面相对的第二界面上,并在第二界面上发生全反射。这样,反射光线在纤芯内经过多次全反射后,从光纤面板的与第一端面相对的第二端面出射。由此,可以推导出透射光线在光纤面板内发生全反射的条件为: Referring to FIG. 8, when the transmitted light of the lens is incident from the first end surface of the optical fiber panel at an incident angle θ 0 , the refracted light is refracted to be incident on the first interface of the core. If the incident angle φ 0 of the refracted ray at the first interface is greater than the critical angle φ c , the refracted ray will be totally reflected at the first interface, and the totally reflected ray is incident on the second interface of the core opposite the first interface And total reflection occurs on the second interface. Thus, after the reflected light is totally totally reflected in the core, it is emitted from the second end surface of the optical fiber panel opposite to the first end surface. Therefore, it can be inferred that the condition that the transmitted light is totally reflected in the optical fiber panel is:
Figure PCTCN2018083219-appb-000003
Figure PCTCN2018083219-appb-000003
其中,公式(1)中n 0为空气的绝对折射率,n 1为纤芯的折射率,n 2为包层的折射 率。由于n 0≈1,则公式(1)可以简化为下式: Wherein, in the formula (1), n 0 is an absolute refractive index of air, n 1 is a refractive index of the core, and n 2 is a refractive index of the cladding. Since n 0 ≈1, the formula (1) can be simplified to the following formula:
Figure PCTCN2018083219-appb-000004
Figure PCTCN2018083219-appb-000004
其中,当n 1=1.5122,n 2=1.50137时,可计算得到透射光线的入射角度θ 0为9.9°。也就是入射角度小于θ 0的透射光线从光纤面板的第一端面入射后形成的折射光线将在第一界面处发生全反射,折射光线被无损失的传输,从光纤面板的第二端面出射;而入射角度大于θ 0透射光线从光纤面板的第一端面入射后形成的折射光线将在第一界面再次折射,再次折射后的折射光线入射到包层。 Wherein, when n 1 = 1.5122, n 2 = 1.50137, the incident angle θ 0 of the transmitted light can be calculated to be 9.9°. That is, the refracted ray formed by the incident light having an incident angle smaller than θ 0 after being incident from the first end surface of the optical fiber panel will be totally reflected at the first interface, and the refracted light is transmitted without loss, and exits from the second end surface of the optical fiber panel; When the incident angle is larger than θ 0 , the refracted light formed by the transmitted light from the first end face of the optical fiber panel is refracted again at the first interface, and the refracted refracted ray is incident on the cladding.
在本申请实施例中,可以通过在包层中加入吸收丝来消除再次折射后的折射光线,也可在包层的外侧增加一层挡光层,例如由聚丙烯酸酯制作的挡光层,用来消除从包层出射的光线。对于上述两种实现方式,本领域普通技术人员可以根据实际需要选择,在本申请实施例中不作限制。In the embodiment of the present application, the refraction refracted light may be eliminated by adding an absorption wire to the cladding layer, or a light blocking layer may be added on the outer side of the cladding layer, for example, a light blocking layer made of polyacrylate. Used to eliminate light from the cladding. For the above two implementations, those skilled in the art can select according to actual needs, and are not limited in the embodiments of the present application.
在本申请实施例中,为了满足分辨率的要求,也就要求第二通孔阵列中的每个通孔对应一个像素,这样第二通孔阵列中每个通孔的孔径会较小,另一方面,为消除不同的透镜的透射光线之间串扰,第二通孔阵列包括的每个通孔的深度会较深,也就是通孔的深宽比会比较大。而正如导光组件的实现方式一中所介绍的,第二通孔阵列是通过激光、机械加工压印、或微加工等方式制作,然而这些加工方式的难度往往随着通孔的深宽比的增加而增加,不利于量产。鉴于此,本申请实施例提出导光组件的实现方式三,即采用在垂直方向上堆叠设置的N层不透光层来消除不同的透镜的透射光线之间的串扰。In the embodiment of the present application, in order to meet the resolution requirement, each through hole in the second through hole array is required to correspond to one pixel, so that the aperture of each through hole in the second through hole array is smaller, and On the one hand, in order to eliminate the crosstalk between the transmitted rays of different lenses, the depth of each of the through holes included in the second via array will be deeper, that is, the aspect ratio of the through holes will be larger. As described in the implementation of the light guiding component, the second via array is fabricated by laser, mechanical imprinting, or micromachining. However, the difficulty of these processing methods is often the same as the aspect ratio of the via. The increase is increasing, which is not conducive to mass production. In view of this, the embodiment of the present application proposes the third implementation of the light guiding component, that is, the N-layer opaque layer stacked in the vertical direction is used to eliminate the crosstalk between the transmitted rays of different lenses.
导光组件的实现方式三Light guide component implementation three
导光组件包括:在垂直方向上堆叠设置的N层不透光层,N层不透光层中的每层不透光层开设有通孔阵列,每层不透光层开设的通孔阵列的位置完全重合,下文中将每层不透光层开设的通孔阵列称为第三通孔阵列,第三通孔阵列包括贯穿每层不透光层的第三通孔和第四通孔,N为整数;The light guiding component comprises: an N-layer opaque layer stacked in a vertical direction, and each of the opaque layers of the N-layer opaque layer is provided with a through-hole array, and the through-hole array formed by each opaque layer The positions of the holes are completely coincident. Hereinafter, the array of through holes each of the opaque layers is referred to as a third via array, and the third via array includes third through holes and fourth through holes penetrating each opaque layer. , N is an integer;
其中,所述第三通孔和所述第四通孔之间具有隔断,以消除从所述第一透镜出射的透射光线和从所述第二透镜出射的透射光线之间发生的串扰。Wherein, the third through hole and the fourth through hole have a partition to eliminate crosstalk occurring between the transmitted light emitted from the first lens and the transmitted light emitted from the second lens.
在本申请实施例中,N层不透光层中的每层不透光层开设有第三通孔阵列,第三通孔阵列中的通孔的排列位置与透镜阵列中的透镜的排列位置一一对应。这里的“对应”,是指从某个透镜透射的透射光线从与该透镜对应的通孔出射。例如以第三通孔阵列中的第三通孔和第四通孔,透镜阵列中的第一透镜和第二透镜为例,第三通孔和第一透镜对应,也就是控制从第一透镜透射的透射光线从第三通孔出射,第四通孔和第二透镜对应,也就是控制从第二透镜投射的透射光线从第四通孔出射。在本申请实施例中,N由透镜阵列中的透镜的直径和所述透镜阵列的周期获得,例如,
Figure PCTCN2018083219-appb-000005
其中,
Figure PCTCN2018083219-appb-000006
Figure PCTCN2018083219-appb-000007
为透镜阵列中透镜的直径,p为透镜阵列的周期。
In the embodiment of the present application, each of the opaque layers of the N-layer opaque layer is provided with a third via array, the arrangement positions of the through holes in the third via array and the arrangement positions of the lenses in the lens array. One-to-one correspondence. Here, "corresponding" means that transmitted light transmitted from a certain lens is emitted from a through hole corresponding to the lens. For example, the third through hole and the fourth through hole in the third through hole array, the first lens and the second lens in the lens array are exemplified, and the third through hole corresponds to the first lens, that is, the control is from the first lens The transmitted transmitted light is emitted from the third through hole, and the fourth through hole corresponds to the second lens, that is, the transmitted light projected from the second lens is controlled to exit from the fourth through hole. In the embodiment of the present application, N is obtained by the diameter of the lens in the lens array and the period of the lens array, for example,
Figure PCTCN2018083219-appb-000005
among them,
Figure PCTCN2018083219-appb-000006
Figure PCTCN2018083219-appb-000007
For the diameter of the lens in the lens array, p is the period of the lens array.
在具体实现过程中,当通孔的深度没有达到预设深度,也就是第三通孔阵列中的每 个通孔和图像传感器202之间还有一定距离时,从通孔出射的光线之间还是可能会产生串扰。因此,为了更好的消除从不同透镜透射的透射光线之间的串扰,在本申请实施例中,N层堆叠设置的光线控制层的总厚度小于或等于从透镜的光心到图像传感器202之间的垂直距离。In a specific implementation process, when the depth of the through hole does not reach a preset depth, that is, when there is a certain distance between each through hole in the third through hole array and the image sensor 202, between the light rays exiting the through hole It is still possible to generate crosstalk. Therefore, in order to better eliminate crosstalk between transmitted light transmitted from different lenses, in the embodiment of the present application, the total thickness of the light control layer disposed in the N layer stack is less than or equal to the optical center of the lens to the image sensor 202. The vertical distance between them.
同时,为了有效地区分从不同透镜透射出的透射光线,第三通孔阵列中的每个通孔的孔径小于或等于透镜阵列中的与每个通孔对应的透镜的直径,例如第三通孔的孔径小于或等于第一透镜的直径,第四通孔的孔径要小于等于第二透镜的直径,以避免从第二透镜透射的透射光线从第三通孔的顶端直接入射到第三通孔中,与第三通孔中传输的透射光线之间发生串扰。在本申请实施例中,N层不透光层的实现方式包括但不限于以下两种,下面分别对这两种实现方式进行介绍。Meanwhile, in order to effectively distinguish the transmitted light transmitted from the different lenses, the aperture of each of the through holes in the third through hole array is smaller than or equal to the diameter of the lens corresponding to each of the through holes in the lens array, for example, the third pass The aperture of the hole is smaller than or equal to the diameter of the first lens, and the aperture of the fourth through hole is smaller than or equal to the diameter of the second lens, so as to prevent the transmitted light transmitted from the second lens from directly entering the third pass from the top end of the third through hole. Crosstalk occurs between the holes and the transmitted light transmitted in the third through holes. In the embodiment of the present application, the implementation manner of the N-layer opaque layer includes, but is not limited to, the following two types. The two implementation manners are respectively introduced below.
光线控制层的实现方式一Light control layer implementation
请参考图9,N层不透光层中的每层不透光层包括第一子层和蒸镀在第一子层的上表面的第二子层,其中,第一子层的材料为透光材料,例如具有透光性的玻璃或塑料等,第二子层的材料为不透光材料,例如不透光的薄膜,可以是金属薄膜、黑色聚酯薄膜(Polyseter Film,PET)或者黑胶层。Referring to FIG. 9, each of the opaque layers of the N-layer opaque layer includes a first sub-layer and a second sub-layer evaporated on the upper surface of the first sub-layer, wherein the material of the first sub-layer is a light transmissive material, such as a light transmissive glass or plastic, etc., the second sublayer material is an opaque material, such as an opaque film, which may be a metal film, a black polyester film (Polyseter Film, PET) or Black rubber layer.
在本申请实施例中,每层不透光层上的通孔阵列的形成,包括但不限于以下两种方式:In the embodiment of the present application, the formation of the via array on each opaque layer includes, but is not limited to, the following two modes:
作为一种示例,利用蒸镀工艺在每层第一子层上蒸镀第二子层,在第二子层上开设第三通孔阵列。As an example, a second sub-layer is evaporated on the first sub-layer of each layer by an evaporation process, and a third via array is formed on the second sub-layer.
或者作为另一种示例,可以先在每层第一子层上设置掩模板,其中,掩模板上设置有至少两个子区域,至少两个子区域中相邻的子区域之间有间隙,在至少两个子区域上蒸镀第二子层。再去除掩模板,获得设置了第三通孔阵列的不透光层,然后将设置有第三通孔阵列的不透光层通过键合的方式在垂直方向上堆叠设置在一起。Or as another example, a mask may be first disposed on each of the first sub-layers, wherein the mask is provided with at least two sub-regions, and at least two sub-regions have gaps between adjacent sub-regions, at least The second sub-layer is evaporated on the two sub-areas. Then, the mask is removed to obtain an opaque layer in which the third via array is disposed, and then the opaque layers provided with the third via array are stacked and stacked in the vertical direction.
无论是在厚度较薄的第二子层上利用激光、机械加工压印、或微加工等方式进行打孔形成第三通孔阵列,还是通过掩模板形成第三通孔阵列,相较于在厚度较厚的不透光层上打孔,加工的难度会降低很多,更适于量产。Whether the third via layer array is formed by laser, mechanical embossing, or micromachining on a thin second sub-layer, or a third via array is formed through a mask, as compared with The thicker opaque layer is perforated, and the processing difficulty is much lower, which is more suitable for mass production.
光线控制层的实现方式二Light control layer implementation 2
请参考图10,N层不透光层,例如硅基板。在每层不透光层上开设第三通孔阵列,开设第三通孔阵列的方式可以为激光、机械加工压印、或微加工等方式。Please refer to FIG. 10, an N-layer opaque layer, such as a silicon substrate. A third via array is formed on each of the opaque layers, and the third via array can be formed by laser, mechanical imprinting, or micromachining.
在本申请实施例中,开设有第三通孔阵列的光线控制层通过键合的方式在垂直方向上堆叠设置。由于导光组件包括N层不透光层,每层不透光层的厚度相对导光组件的实现方式一中的不透光层的厚度要薄一些,再通过激光、机械加工压印、或微加工等方式进行打孔时的打孔难度会降低很多。In the embodiment of the present application, the light control layers on which the third through hole array is opened are stacked in the vertical direction by bonding. Since the light guiding component comprises an N-layer opaque layer, the thickness of each opaque layer is thinner than the thickness of the opaque layer in the implementation mode 1 of the light guiding component, and then laser, mechanically embossed, or The difficulty of punching when punching is reduced by micromachining and the like.
在本申请实施例中,透射光线经导光组件传输后形成的成像光线将入射到图像传感器202,以形成用于表示纹路的图像的数据。在下文中,以纹路是指纹、形成的纹路图像是指纹图像为例,对图像传感器202的工作方式进行介绍。In the embodiment of the present application, the imaging light formed by the transmitted light transmitted through the light guiding component will be incident on the image sensor 202 to form data for representing the image of the texture. Hereinafter, the operation mode of the image sensor 202 will be described by taking a fingerprint as a fingerprint and forming a texture image as a fingerprint image.
图像传感器202包括图像传感层和图像芯片,图像传感层与图像芯片之间可通过柔性电路板连接。其中,在处理指纹时,图像传感层将形成的指纹图像转换为电信号,通过柔性电路板将电信号发送给图像芯片,图像芯片对接收到的电信号进行放大转换,并 输出数字指纹图像到处理器端,图像芯片与处理器端采用串行外设接口(Serial Peripheral Interface,SPI)或I2C(Inter-Integrated Circuit)接口进行通信。The image sensor 202 includes an image sensing layer and an image chip, and the image sensing layer and the image chip can be connected by a flexible circuit board. Wherein, when processing the fingerprint, the image sensing layer converts the formed fingerprint image into an electrical signal, and sends the electrical signal to the image chip through the flexible circuit board, and the image chip amplifies and converts the received electrical signal, and outputs the digital fingerprint image. To the processor side, the image chip and the processor end communicate using a Serial Peripheral Interface (SPI) or an Inter-Integrated Circuit (I2C) interface.
在本申请实施例中,图像传感层可以为电荷耦合元件(Charge-coupled Device,CCD),也可以为互补金属氧化物半导体(Complementary Metal Oxide Semiconductor,CMOS)图像传感器202。In the embodiment of the present application, the image sensing layer may be a Charge-coupled Device (CCD) or a Complementary Metal Oxide Semiconductor (CMOS) image sensor 202.
在具体实现过程中,为了实现检测装置的量产,指纹图像传感层可以采用大面积图像传感器202,例如,采用有机材料作为感光介质的大面积图像传感器202,具体的,可将有机印刷光电探测器(Organic Printed Photodetecor,OPD)沉积到塑料有机薄膜晶体管(Thin film transistor,TFT)的背板上,以实现大面积图像传感;或者采用非晶硅玻璃基材的大面积图像传感器202,例如采用光电二极管和薄膜晶体管作为光学敏感单元,以玻璃或者塑料为基材实现。In a specific implementation process, in order to realize mass production of the detecting device, the fingerprint image sensing layer may adopt a large-area image sensor 202, for example, a large-area image sensor 202 using an organic material as a photosensitive medium, and specifically, organic printing photoelectric A detector (Organic Printed Photodetecor, OPD) is deposited on a back sheet of a plastic thin film transistor (TFT) to realize large-area image sensing; or a large-area image sensor 202 using an amorphous silicon glass substrate. For example, photodiodes and thin film transistors are used as optical sensing units, and glass or plastic is used as a substrate.
在本申请实施例中,由于通过控制组件201来控制不同的反馈光线的传播方向,也就是用于消除反馈光线之间产生的串扰,从而能够保证在图像传感器202接收到成像光线后形成用于表示清晰的纹路的图像的数据,进而实现更精确化的纹路检测,提高显示屏下光学识别的精准度。In the embodiment of the present application, since the propagation direction of different feedback rays is controlled by the control component 201, that is, for eliminating crosstalk generated between the feedback rays, it can be ensured that after the image sensor 202 receives the imaging light, it is formed for The data representing the image of the clear lines, in order to achieve more accurate texture detection, improve the accuracy of optical recognition under the display.
第二方面,请参考图11,本申请实施例提供一种检测装置,包括:In a second aspect, please refer to FIG. 11 , an embodiment of the present application provides a detecting apparatus, including:
控制组件1100,用于控制从具有透光性的显示屏出射的反馈光线的传播方向,以形成成像光线,其中,所述反馈光线为在一物体靠近或接触所述显示屏时,在所述显示屏发出的初始光线的照射下,所述物体靠近或接触所述显示屏的一面的纹路所反射的光线;a control component 1100, configured to control a propagation direction of the feedback light emitted from the light-transmitting display screen to form an imaging light, wherein the feedback light is when the object approaches or contacts the display screen, The light reflected by the grain of the side of the display screen when the object approaches or contacts the illumination of the initial light emitted by the display screen;
图像传感器1101,用于通过接收所述成像光线,形成用于表示所述物体靠近或接触所述显示模组的一面的纹路的图像的数据。The image sensor 1101 is configured to form data for indicating an image of a texture of the object approaching or contacting one side of the display module by receiving the imaging light.
在本申请实施例中,通过控制组件1100控制反馈光线的传播方向,能够消除不同的反馈光线之间产生的串扰,从而使得图像传感器1101在接收成像光线后能够形成用于表示纹路较为清晰的图像的数据,进而实现更精确化的纹路检测,提高显示屏下光学识别的精准度。In the embodiment of the present application, the control component 1100 controls the propagation direction of the feedback light, and the crosstalk generated between the different feedback rays can be eliminated, so that the image sensor 1101 can form an image for indicating a clear texture after receiving the imaging light. The data, in turn, achieves more precise texture detection and improves the accuracy of optical recognition under the display.
在本申请实施例中,检测装置的初始光线由具有透光性的显示屏的发光层发出。在本申请实施例中,在本申请实施例中,显示屏可以为有机发光二极管(Organic Light-Emitted Diode,OLED)、发光二极管(Light-Emitted Diode,LED)、或软性有机发光二极管(Flexible OLED,FOLED)等。其中,显示屏以OLED为例进行介绍。In the embodiment of the present application, the initial light of the detecting device is emitted by the light emitting layer of the light-transmitting display screen. In the embodiment of the present application, in the embodiment of the present application, the display screen may be an Organic Light-Emitted Diode (OLED), a Light-Emitted Diode (LED), or a Flexible Organic Light Emitting Diode (Flexible). OLED, FOLED), etc. Among them, the display screen is introduced by taking OLED as an example.
请参见图4,当在显示模屏的两端施加电压时,产生的电流从显示屏的阴极流向阳极,阳极空穴与阴极电子就会在发光层中结合,产生光亮,也就是本申请实施例中所述的初始光线。其中,发光层的材料中包括至少一种主体材料和至少一种客体掺杂材料,主体材料可以为P型材料,也就是空穴型材料,也可以为N型材料,也就是电子型材料,客体掺杂材料可以为磷光材料或荧光材料。Referring to FIG. 4, when a voltage is applied across the display screen, the generated current flows from the cathode of the display screen to the anode, and the anode and cathode electrons are combined in the light-emitting layer to generate light, which is the implementation of the present application. The initial ray described in the example. Wherein, the material of the light-emitting layer comprises at least one host material and at least one guest doping material, and the host material may be a P-type material, that is, a hole-type material, or an N-type material, that is, an electronic type material. The guest doping material may be a phosphorescent material or a fluorescent material.
在本申请实施例中,对控制组件1100、图像传感器1101的介绍同第一方面中对控制组件201及图像传感器202的介绍,在此不再赘述。In the embodiment of the present application, the introduction of the control component 1100 and the image sensor 1101 is the same as that of the control component 201 and the image sensor 202 in the first aspect, and details are not described herein again.
第三方面,请参考图12,本申请施例提供一种终端设备,包括:In a third aspect, referring to FIG. 12, the embodiment of the present application provides a terminal device, including:
具有透光性的显示屏1200;a light-transmitting display screen 1200;
如第一方面所述的检测装置1201,用于在一物体与所述显示屏1200靠近或接触时,获得用于表示物体与显示屏1200靠近或接触的一面的纹路的图像的数据;The detecting device 1201 according to the first aspect, for obtaining data of an image indicating a texture of a side of the object close to or in contact with the display screen 1200 when an object approaches or contacts the display screen 1200;
处理器1202,耦合至检测装置1201,用于将图像的数据转化为图像,并识别图像是否为设定的图像。The processor 1202 is coupled to the detecting device 1201 for converting data of the image into an image and identifying whether the image is a set image.
在本申请实施例中,终端设备可以是包括但不限于移动电话(或者称为“蜂窝”电话),具有移动终端设备计算机,便携式、手持式、计算机内置的或者车载的移动装置,智能穿戴式设备等。例如,手机、平板电脑(PAD)、个人数字助理(Personal Digital Assistant,PDA)、销售终端(Point of Sales,POS)、车载电脑、智能手表、智能头盔、智能眼镜、或智能手环等设备等。In the embodiment of the present application, the terminal device may be a mobile terminal device, including a mobile terminal device, a mobile terminal device computer, a portable, handheld, computer built-in or vehicle-mounted mobile device, smart wearable Equipment, etc. For example, mobile phones, tablet computers (PADs), personal digital assistants (PDAs), point of sales (POS), in-vehicle computers, smart watches, smart helmets, smart glasses, or smart bracelets, etc. .
在本申请实施例中,在处理器1202接收到用于表示指纹图像的数据后,将指纹图像的数据转化为指纹图像,提取指纹图像的特征点,将提取的特征点与预先保存的特征点进行匹配,获取提取的特征点与预先保存的特征点之间的匹配度,当当匹配度大于预设值,例如90%,则表明匹配成功,当匹配度小于预设值时,则表明匹配失败,在匹配失败时,处理器1202会输出提示信息,例如,输出语音提示“请重新录入指纹”,或者通过灯光的闪烁提示指纹匹配失败。In the embodiment of the present application, after the processor 1202 receives the data for representing the fingerprint image, the data of the fingerprint image is converted into a fingerprint image, and the feature points of the fingerprint image are extracted, and the extracted feature points and the pre-saved feature points are extracted. Perform matching to obtain the matching degree between the extracted feature points and the pre-saved feature points. When the matching degree is greater than the preset value, for example, 90%, the matching is successful, and when the matching degree is less than the preset value, the matching fails. When the matching fails, the processor 1202 outputs a prompt message, for example, outputting a voice prompt “Please re-enter the fingerprint”, or prompting the fingerprint matching failure by flashing the light.
处理器1202具体可以是通用的中央处理器或特定应用集成电路(英文:Application Specific Integrated Circuit,简称:ASIC),可以是一个或多个用于控制程序执行的集成电路,可以是使用现场可编程门阵列(英文:Field Programmable Gate Array,简称:FPGA)开发的硬件电路,可以是基带处理器。The processor 1202 may be a general-purpose central processing unit or an application specific integrated circuit (ASIC), and may be one or more integrated circuits for controlling program execution, and may be field-programmable. The hardware circuit developed by the Field Programmable Gate Array (FPGA) can be a baseband processor.
在本申请实施例中,终端设备还包括:In the embodiment of the present application, the terminal device further includes:
传感器1203,用于检测触控操作,该触控操作用于激活检测装置1201的检测功能。其中,触控操作可以是按压操作、或者滑动操作。The sensor 1203 is configured to detect a touch operation for activating the detecting function of the detecting device 1201. The touch operation may be a pressing operation or a sliding operation.
在检测到触控操作后,则激活检测装置1201的检测功能,为了降低检测装置1201的功耗,在本申请实施例中,处理器1202还用于:After detecting the touch operation, the detection function of the detecting device 1201 is activated. In order to reduce the power consumption of the detecting device 1201, in the embodiment of the present application, the processor 1202 is further configured to:
根据触控操作,确定触控操作的触控位置;Determining the touch position of the touch operation according to the touch operation;
控制所述检测装置1201的发光组件中包括的与所述触控位置对应位置处的光源处于点亮状态,所述发光组件中的其它光源处于关闭状态。The light source at the position corresponding to the touch position included in the light-emitting component of the detecting device 1201 is controlled to be in a lighting state, and the other light sources in the light-emitting component are in a closed state.
在本申请实施例中,传感器1203可以是压力传感器、或者是重力传感器。In the embodiment of the present application, the sensor 1203 may be a pressure sensor or a gravity sensor.
在本申请实施例中,继续以指纹识别为例,发光组件中包括第一光源、第二光源、第三光源及第四光源,当触控位置为显示屏1200上的指纹识别区域中的第一区域时,控制发光组件中的第一光源和第二光源开启,第三光源和第四光源关闭;当触控位置为显示屏1200上的指纹识别区域中的第二区域时,控制发光组件中的第三光源和第四光源开启,第一光源和第二光源关闭。由此,在触控位置不同时,控制发光组件中的部分光源处于开启状态,用于发出初始光源,控制发光组件中其它部分光源处于关闭状态,以降低终端设备的功耗。In the embodiment of the present application, taking fingerprint recognition as an example, the light emitting component includes a first light source, a second light source, a third light source, and a fourth light source. When the touch position is the first in the fingerprint identification area on the display screen 1200 In a region, the first light source and the second light source in the control light-emitting component are turned on, and the third light source and the fourth light source are turned off; when the touch position is the second region in the fingerprint recognition area on the display screen 1200, the light-emitting component is controlled The third light source and the fourth light source are turned on, and the first light source and the second light source are turned off. Therefore, when the touch positions are different, part of the light sources in the control light-emitting component are in an on state for emitting an initial light source, and other parts of the light source in the light-emitting assembly are controlled to be in a closed state to reduce power consumption of the terminal device.
第四方面,请参考图13,本申请实施例提供一种终端设备,包括:In a fourth aspect, please refer to FIG. 13, the embodiment of the present application provides a terminal device, including:
具有透光性的显示屏1300;a light-transmitting display screen 1300;
如第二方面所述的检测装置1301,用于在一物体与所述显示屏1300靠近或接触时,获得用于表示所述物体与所述显示屏1300靠近或接触的一面的纹路的图像的数据;The detecting device 1301 according to the second aspect, for obtaining an image of a texture indicating a side of the object in proximity or contact with the display screen 1300 when an object approaches or contacts the display screen 1300 data;
处理器1302,耦合至所述检测装置1301,用于将所述图像的数据转化为所述图像,并识别所述图像是否为设定的图像。A processor 1302 is coupled to the detecting means 1301 for converting data of the image into the image and identifying whether the image is a set image.
在本申请实施例中,终端设备可以是包括但不限于移动电话(或者称为“蜂窝”电话),具有移动终端设备计算机,便携式、手持式、计算机内置的或者车载的移动装置,智能穿戴式设备等。例如,手机、平板电脑(PAD)、个人数字助理(Personal Digital Assistant,PDA)、销售终端(Point of Sales,POS)、车载电脑、智能手表、智能头盔、智能眼镜、或智能手环等设备等。In the embodiment of the present application, the terminal device may be a mobile terminal device, including a mobile terminal device, a mobile terminal device computer, a portable, handheld, computer built-in or vehicle-mounted mobile device, smart wearable Equipment, etc. For example, mobile phones, tablet computers (PADs), personal digital assistants (PDAs), point of sales (POS), in-vehicle computers, smart watches, smart helmets, smart glasses, or smart bracelets, etc. .
在本申请实施例中,在处理器1302接收到指纹图像的数据后,将指纹图像的数据转化为指纹图像,提取指纹图像的特征点,将提取的特征点与预先保存的特征点进行匹配,获取提取的特征点与预先保存的特征点之间的匹配度,当当匹配度大于预设值,例如90%,则表明匹配成功,当匹配度小于预设值时,则表明匹配失败,在匹配失败时,处理器1302会输出提示信息,例如,输出语音提示“请重新录入指纹”,或者通过灯光的闪烁提示指纹匹配失败。In the embodiment of the present application, after the processor 1302 receives the data of the fingerprint image, the data of the fingerprint image is converted into a fingerprint image, the feature points of the fingerprint image are extracted, and the extracted feature points are matched with the pre-saved feature points. Obtaining the matching degree between the extracted feature points and the pre-saved feature points. When the matching degree is greater than the preset value, for example, 90%, the matching is successful, and when the matching degree is less than the preset value, the matching fails, and the matching is performed. Upon failure, the processor 1302 will output a prompt message, for example, outputting a voice prompt "Please re-enter the fingerprint", or flashing the light to indicate that the fingerprint matching failed.
处理器1302具体可以是通用的中央处理器或特定应用集成电路(英文:Application Specific Integrated Circuit,简称:ASIC),可以是一个或多个用于控制程序执行的集成电路,可以是使用现场可编程门阵列(英文:Field Programmable Gate Array,简称:FPGA)开发的硬件电路,可以是基带处理器。The processor 1302 may be a general-purpose central processing unit or an application specific integrated circuit (ASIC), and may be one or more integrated circuits for controlling program execution, and may be field-programmable. The hardware circuit developed by the Field Programmable Gate Array (FPGA) can be a baseband processor.
显然,本领域的技术人员可以对本申请进行各种改动和变型而不脱离本申请的精神和范围。这样,倘若本申请的这些修改和变型属于本申请权利要求及其等同技术的范围之内,则本申请也意图包含这些改动和变型在内。It will be apparent to those skilled in the art that various modifications and changes can be made in the present application without departing from the spirit and scope of the application. Thus, it is intended that the present invention cover the modifications and variations of the present invention.
下面将结合附图对本申请另一些实施例进行详细描述。Further embodiments of the present application will be described in detail below with reference to the accompanying drawings.
以下,对本申请实施例中的部分用语进行解释说明,以便于本领域技术人员理解。Hereinafter, some of the terms in the embodiments of the present application will be explained so as to be understood by those skilled in the art.
显示屏,可以为有机发光二极管(Organic Light-Emitted Diode,OLED)、发光二极管(Light-Emitted Diode,LED)、或软性有机发光二极管(Flexible OLED,FOLED)等。其中,以OLED为例进行说明。请参考图14,显示屏为OLED时,整个结构层包括:盖板玻璃200;偏光片201,通过光学胶与盖板玻璃200贴合设置;封装玻璃202,贴合设置在偏光片201的下表面;阴极203,设置在封装玻璃202的下表面;发光层204,设置在阴极203的下表面;阳极205,设置在发光层204的下表面,以及基板玻璃206,其中,阴极203和阳极205的交叉点形成像素,每个像素对应位置处的由阴极203和阳极205构成的电极对为像素电极,像素电极中相邻像素电极之间具有间隙。The display screen can be an Organic Light-Emitted Diode (OLED), a Light-Emitted Diode (LED), or a Flexible OLED (FOLED). The OLED is taken as an example for description. Referring to FIG. 14 , when the display screen is an OLED, the entire structural layer includes: a cover glass 200; a polarizer 201 is disposed on the cover glass 200 through an optical adhesive; and the package glass 202 is disposed under the polarizer 201. a surface; a cathode 203 disposed on a lower surface of the package glass 202; a light emitting layer 204 disposed on a lower surface of the cathode 203; an anode 205 disposed on a lower surface of the light emitting layer 204, and a substrate glass 206, wherein the cathode 203 and the anode 205 The intersections form pixels, and the electrode pair composed of the cathode 203 and the anode 205 at the corresponding position of each pixel is a pixel electrode, and a gap is formed between adjacent pixel electrodes in the pixel electrode.
第五方面,请参见图15,为本申请实施例提供一种检测装置,包括:In a fifth aspect, referring to FIG. 15, a detection device is provided in the embodiment of the present application, including:
发光组件300,用于发出初始光线;a light emitting component 300 for emitting initial light;
准直组件301,用于在一物体的表面接触或靠近具有透光性的显示屏的上表面时,控制发光组件300中不同的发光光源发出的初始光线透过显示屏照射到所述物体的表面的不同区域上,初始光线经过物体的反射形成的反射光线透过显示屏形成反馈光线;The collimating component 301 is configured to control the initial light emitted by the different illuminating light sources in the illuminating component 300 to illuminate the object through the display screen when the surface of the object is in contact with or close to the upper surface of the transmissive display screen On different areas of the surface, the reflected light formed by the reflection of the initial light through the object forms a feedback light through the display screen;
图像传感器302,用于根据所述反馈光线,形成用于表示接触或靠近所述上表面的物体的表面的纹路的图像的数据。The image sensor 302 is configured to form data for representing an image of a texture of a surface of an object contacting or approaching the upper surface according to the feedback ray.
在本申请实施例中,通过准直组件301控制初始光线的传播方向,使得发光组件300中中不同的光源发出的初始光线照射在物体的表面上的不同区域,不同区域中各区域之 间不重叠,这样照射在不同区域的光线经物体反射形成的反射光线之间不会发生串扰,继而反射光线透过显示屏形成的反馈光线之间也不会发生串扰,从而使得图像传感器302在接收反馈光线后能够形成用于表示纹路较为清晰的图像的数据,进而实现更精确的纹路检测,提高了显示屏下光学识别的精准度。In the embodiment of the present application, the direction of propagation of the initial light is controlled by the collimating component 301, so that the initial light emitted by different light sources in the light-emitting component 300 is irradiated on different regions on the surface of the object, and the regions in different regions are not The overlapping, so that the reflected light formed by the light reflected in different regions is not crosstalked, and then the reflected light formed through the display screen does not crosstalk, so that the image sensor 302 receives the feedback. After the light, data for representing a relatively clear image can be formed, thereby achieving more accurate texture detection and improving the accuracy of optical recognition under the display.
本申请实施例中,发光组件300为设置在显示屏外部的光源。发光组件300可以为设置在显示屏的正下方区域的阵列光源,阵列光源可以是由LED光源构成,也可以是由激光光源构成,或者可以由红外光光源构成。在本申请实施例中,阵列光源设置的区域也就是检测装置上用于检测纹路的区域,在该区域内光源以等间距排列形成阵列,例如5×4的阵列,请参考图3。In the embodiment of the present application, the light emitting component 300 is a light source disposed outside the display screen. The light-emitting assembly 300 may be an array light source disposed in a region directly under the display screen. The array light source may be composed of an LED light source, or may be composed of a laser light source, or may be composed of an infrared light source. In the embodiment of the present application, the area where the array light source is disposed is the area for detecting the texture on the detecting device, in which the light sources are arranged at equal intervals to form an array, for example, a 5×4 array, please refer to FIG. 3.
在本申请实施例中,阵列光源中相邻的光源之间的间距大于预设值,例如4毫米(mm)、5mm或者为6mm。阵列光源中每个光源发出的初始光线能够覆盖第一面上物体靠近或接触的位置处的预设区域,该预设区域可以是10mm×10mm的区域或者是11mm×11mm的区域。In the embodiment of the present application, the spacing between adjacent light sources in the array light source is greater than a preset value, such as 4 millimeters (mm), 5 mm, or 6 mm. The initial light emitted by each of the array light sources can cover a predetermined area at a position where the first surface object approaches or contacts, and the predetermined area can be an area of 10 mm x 10 mm or an area of 11 mm x 11 mm.
在本申请实施例中,由于阵列光源中的每个光源都会向不同方向发出初始光线,另一方面由于显示屏中的像素电极具有强不透光性,且像素电极背面即像素电极的朝向显示屏的下表面的一面具有强反射性,也就是照射到像素电极的背面的光线会发生强反射,导致初始光线入射到显示屏的入射率降低。In the embodiment of the present application, each of the light sources in the array source emits initial light in different directions, and on the other hand, the pixel electrode in the display panel has strong opacity, and the back of the pixel electrode is the orientation of the pixel electrode. One side of the lower surface of the screen is highly reflective, that is, the light that is incident on the back surface of the pixel electrode is strongly reflected, resulting in a decrease in the incidence of the initial light incident on the display screen.
鉴于此,本申请实施例通过准直组件301对不同光源发出的初始光线进行处理,控制初始光线通过像素电极中相邻的像素电极之间的间隙照射到物体的表面的不同区域上。本申请实施例中,准直组件301包括:In view of this, the embodiment of the present application processes the initial light emitted by different light sources by the collimating component 301, and controls the initial light to be irradiated onto different regions of the surface of the object through the gap between adjacent pixel electrodes in the pixel electrode. In the embodiment of the present application, the collimating component 301 includes:
透光部分和挡光部分,所述透光部分设置在相邻的挡光部分之间,挡光部分用于阻挡初始光线照射到显示屏的像素电极上,以控制初始光线由所述透光部分,从相邻的像素电极之间的间隙照射到物体的表面的不同区域上。a light-transmitting portion and a light-blocking portion, the light-transmitting portion is disposed between the adjacent light-blocking portions, and the light-blocking portion is configured to block the initial light from being irradiated onto the pixel electrode of the display screen to control the initial light from the light-transmitting portion In part, the gap between adjacent pixel electrodes is irradiated onto different areas of the surface of the object.
在本申请实施例中,挡光部分的材料可以为不透光的材料,例如黑色塑料薄膜、硅片或金属薄片等,透光部分可以为透光玻璃,也可以是挡光部分之间的间隙。其中,挡光部分用于阻挡初始光线照射到显示屏的像素电极的背面上,即,控制初始光线经透光部分出射,然后从相邻的像素电极之间的间隙入射到物体的表面上,也就是透光部分和显示屏的相邻的像素电极之间的间隙一一对应。这不仅限制了初始光线的入射角度,还能够避免初始光线直接照射到像素电极的背面后被反射回来,无法入射显示屏,在减少光学散射的同时,提高了初始光线的入射率。In the embodiment of the present application, the material of the light blocking portion may be an opaque material, such as a black plastic film, a silicon wafer or a metal foil, and the light transmitting portion may be a light transmissive glass or a light blocking portion. gap. Wherein, the light blocking portion is configured to block the initial light from being irradiated onto the back surface of the pixel electrode of the display screen, that is, to control the initial light to be emitted through the light transmitting portion, and then incident on the surface of the object from the gap between the adjacent pixel electrodes, That is, the gap between the light transmitting portion and the adjacent pixel electrodes of the display screen is in one-to-one correspondence. This not only limits the incident angle of the initial light, but also prevents the initial light from being directly reflected on the back surface of the pixel electrode, and is reflected back, unable to enter the display screen, and reduces the incidence of the initial light while reducing the optical scattering.
进一步,阵列光源发出的初始光线经准直组件301处理之后,通过相邻的像素电极之间的间隙入射到物体的表面上的不同区域,不同区域中各相邻区域之间不重叠,例如阵列光源中第一光源发出的初始光线,经准直组件301处理后通过相邻的像素电极之间的间隙入射到物体的表面上的第一区域,阵列光源中的第二光源发出的初始光线,经准直组件301处理后通过相邻的像素电极之间的间隙入射到物体的表面上的第二区域,第一区域和第二区域之间不重叠,在第一区域的入射光线经物体反射后形成的反射光线和在第二区域的入射光线经物体反射后形成的反射光线之间不会发生串扰,具体光路图请参考图16。Further, after the initial light emitted by the array light source is processed by the collimating component 301, it is incident on different regions on the surface of the object through a gap between adjacent pixel electrodes, and adjacent regions in different regions do not overlap, for example, an array. The initial light emitted by the first light source in the light source is processed by the collimating component 301 and then incident on the first region on the surface of the object through the gap between the adjacent pixel electrodes, and the initial light emitted by the second light source in the array light source, After being processed by the collimating component 301, the second region is incident on the surface of the object through the gap between the adjacent pixel electrodes, and the first region and the second region do not overlap, and the incident light in the first region is reflected by the object. The cross-talk between the reflected light formed after the reflected light and the reflected light reflected by the object in the second region does not occur. For the specific optical path diagram, please refer to FIG. 16.
为了控制初始光线入射到物体的表面的入射角度,在本申请实施例中,设置透光部 分的深度和宽度的比值大于预设值,透光部分以透光玻璃为例,则透光玻璃的深度宽度的比值大于3:1、5:1或者为10:1。In order to control the incident angle of the initial light incident on the surface of the object, in the embodiment of the present application, the ratio of the depth and the width of the light transmitting portion is set to be greater than a preset value, and the light transmitting portion is exemplified by the light transmitting glass. The ratio of depth width is greater than 3:1, 5:1, or 10:1.
在本申请实施例中,准直组件301包括的透光部分和挡光部分的实现方式包括但不限于以下三种,下面分别进行描述。In the embodiment of the present application, the implementation manner of the light transmitting portion and the light blocking portion included in the collimating assembly 301 includes but is not limited to the following three, which are respectively described below.
方式A、挡光部分为挡光块,相邻的挡光块之间的间隙构成透光部分。初始光线经相邻的挡光块之间的间隙通过与相邻的挡光块之间的间隙对应的相邻的像素电极之间的间隙入射到物体的表面的不同区域上。The mode A and the light blocking portion are light blocking blocks, and the gap between the adjacent light blocking blocks constitutes a light transmitting portion. The initial rays are incident on different regions of the surface of the object through the gap between the adjacent pixel electrodes through the gap between the adjacent light blocking blocks through the gap between the adjacent pixel electrodes corresponding to the gap between the adjacent light blocking blocks.
在本申请实施例中,虽然由阵列光源中不同的光源发出的初始光线经准直组件301的处理之后,会照射在物体的表面上的不同区域,以物体的表面上的第一区域和第二区域为例,第一区域的左侧区域的入射光线经第二面反射后形成的反射光线和第二区域右侧区域的入射光线经第二面反射后形成的反射光线之间仍可能会发生串扰。鉴于此,在本申请实施例中,控制挡光块的纵切面与显示屏的下表面之间呈预设角度。预设角度可以是纵切面与显示屏的下表面之间所呈角度是锐角,或纵切面与显示屏的下表面之间所呈角度时钝角,请参见图17和图18。In the embodiment of the present application, although the initial light emitted by the different light sources in the array light source is processed by the collimating component 301, different regions on the surface of the object are irradiated to the first region on the surface of the object and For example, in the second region, the reflected light formed by the incident light of the left region of the first region reflected by the second surface and the reflected light formed by the second surface of the second region may still be reflected. Crosstalk has occurred. In view of this, in the embodiment of the present application, the longitudinal section of the control light blocking block and the lower surface of the display screen are at a preset angle. The preset angle may be an acute angle between the longitudinal section and the lower surface of the display screen, or an obtuse angle when the longitudinal section is at an angle to the lower surface of the display screen, see FIGS. 17 and 18.
以图18为例,初始光线从相邻的挡光块之间的间隙出射后,形成具有预设角度的入射光线。由于挡光块中每个挡光块的纵切面与显示屏的下表面之间所呈的角度均为预设角度,从每个相邻的挡光块之间的间隙出射的入射光线都具有预设角度,也就是从相邻的挡光块之间出射的入射光线是朝向同一方向,以使得物体的表面上不同区域的入射光线经物体反射后形成的反射光线之间也是朝向同一方向,避免了反射光线之间的串扰,从而进一步提高了显示屏光学识别的精准度。Taking FIG. 18 as an example, after the initial light rays are emitted from the gap between the adjacent light blocking blocks, incident light rays having a predetermined angle are formed. Since the angle between the longitudinal section of each light blocking block in the light blocking block and the lower surface of the display screen is a preset angle, the incident light rays emerging from the gap between each adjacent light blocking block have The preset angle, that is, the incident light rays ejected from the adjacent light blocking blocks are oriented in the same direction, so that the reflected rays formed by the different incident regions on the surface of the object are reflected in the same direction, Crosstalk between reflected light is avoided, which further improves the accuracy of optical recognition of the display.
在本申请实施例中,挡光部分还可以是挡光片,相邻的挡光片之间的间隙构成透光部分。In the embodiment of the present application, the light blocking portion may also be a light blocking sheet, and a gap between adjacent light blocking sheets constitutes a light transmitting portion.
方式B、在显示屏的下表面设置不透光层,在不透光层上开设通孔阵列。通孔阵列构成透光部分,不透光层上除通孔阵列之外的其它区域构成挡光部分,也就是在方式B中,准直组件301就包括不透光层和在不透光层上开设的通孔阵列。初始光线经通孔阵列中的通孔,通过与通孔对应的相邻的像素电极之间的间隙入射到物体的表面上的不同区域。In the mode B, an opaque layer is disposed on the lower surface of the display screen, and a through hole array is formed on the opaque layer. The through-hole array constitutes a light-transmitting portion, and the area other than the via-hole array on the opaque layer constitutes a light-blocking portion, that is, in the mode B, the collimating assembly 301 includes the opaque layer and the opaque layer. A through hole array opened on the top. The initial rays pass through the through holes in the via array, and are incident on different regions on the surface of the object through a gap between adjacent pixel electrodes corresponding to the via holes.
本申请实施例中,不透光层为利用蒸镀工艺在显示屏的下表面上蒸镀的一层不透光的薄膜,例如,金属薄膜、黑色聚酯薄膜(Polyseter Film,PET)或者黑胶层。通孔阵列可以通过激光、机械加工压印、或微加工等方式形成。In the embodiment of the present application, the opaque layer is a opaque film deposited on the lower surface of the display screen by an evaporation process, for example, a metal film, a black polyester film (Polyseter Film, PET) or black. Adhesive layer. The via array can be formed by laser, mechanical imprinting, or micromachining.
当挡光部分的宽度较窄时,从光源发出的初始光线仍会照射到显示屏的像素电极的背面上,造成初始光线的入射率降低。因此,在本申请实施例中,设置通孔的孔径小于或等于相邻的像素电极之间的间隙宽度,其中,通孔阵列以第一通孔和第二通孔,相邻的像素电极之间的间隙以第一间隙和第二间隙为例,也就是第一通孔的孔径小于或等于第一间隙宽度,第二通孔的孔径小于或等于第二间隙宽度。When the width of the light blocking portion is narrow, the initial light emitted from the light source still illuminates the back surface of the pixel electrode of the display screen, causing the incidence of the initial light to decrease. Therefore, in the embodiment of the present application, the aperture of the through hole is set to be smaller than or equal to the gap width between adjacent pixel electrodes, wherein the through hole array has the first through hole and the second through hole, and the adjacent pixel electrode The gap between the first gap and the second gap is exemplified, that is, the aperture of the first through hole is smaller than or equal to the first gap width, and the aperture of the second through hole is smaller than or equal to the second gap width.
在本申请实施例中,还可以在显示屏的下表面上设置掩模板,其中,掩模板上设置有至少两个子区域,至少两个子区域中相邻的子区域之间有间隙,在至少两个子区域上蒸镀不透光层。再去除掩模板,获得包括通孔阵列和不透光层的准直组件301。In the embodiment of the present application, a mask may be further disposed on a lower surface of the display screen, wherein the mask plate is provided with at least two sub-regions, and at least two of the at least two sub-regions have a gap between the adjacent sub-regions, at least two The opaque layer is evaporated on the sub-areas. The mask is then removed to obtain a collimating assembly 301 comprising an array of vias and an opaque layer.
方式C、在显示屏的下表面的垂直方向上堆叠设置N层不透光层,N层不透光层中 的每层不透光层开设有通孔阵列,每层不透光层开设的通孔阵列的位置完全重合,通孔阵列构成透光部分,N层光线控制层上除通孔阵列之外的其它区域构成挡光部分。初始光线经所述通孔,从与通孔对应的相邻的像素电极之间的间隙入射到物体的表面上的不同区域。下文中,将在不透光层上开设的通孔阵列称为第一通孔阵列,将在N层不透光层上开设的通孔阵列称为第二通孔阵列。In the mode C, an N-layer opaque layer is stacked in a vertical direction of the lower surface of the display screen, and each of the opaque layers of the N-layer opaque layer is provided with a through-hole array, and each layer is provided with an opaque layer. The positions of the via arrays are completely coincident, and the via array constitutes a light transmitting portion, and other regions of the N-layer light control layer excluding the via array constitute a light blocking portion. The initial light rays are incident on the different regions on the surface of the object from the gap between the adjacent pixel electrodes corresponding to the through holes through the through holes. Hereinafter, the via array formed on the opaque layer is referred to as a first via array, and the via array opened on the N opaque layer is referred to as a second via array.
在本申请实施例中,每层光线控制层的实现方式包括但不限于以下两种,下面分别对这两种实现方式进行介绍。In the embodiment of the present application, the implementation manner of each layer of the light control layer includes, but is not limited to, the following two types. The two implementation manners are respectively introduced below.
光线控制层的实现方式一Light control layer implementation
请参考图19,N层不透光层中的每层不透光层包括第一子层和蒸镀在第一子层的下表面的第二子层,其中,第一子层的材料为透光材料,例如具有透光性的玻璃或塑料等,第二子层的材料为不透光材料,例如不透光的薄膜,可以是金属薄膜、黑色聚酯薄膜(Polyseter Film,PET)或者黑胶层。Referring to FIG. 19, each opaque layer in the N-layer opaque layer includes a first sub-layer and a second sub-layer evaporated on a lower surface of the first sub-layer, wherein the material of the first sub-layer is a light transmissive material, such as a light transmissive glass or plastic, etc., the second sublayer material is an opaque material, such as an opaque film, which may be a metal film, a black polyester film (Polyseter Film, PET) or Black rubber layer.
在本申请实施例中,每层不透光层上的第二通孔阵列的形成,包括但不限于以下两种方式:In the embodiment of the present application, the formation of the second via array on each of the opaque layers includes, but is not limited to, the following two modes:
作为一种示例,利用蒸镀工艺在每层第一子层的下表面蒸镀第二子层,在第二子层上开设第二通孔阵列。As an example, the second sub-layer is vapor-deposited on the lower surface of the first sub-layer of each layer by an evaporation process, and the second via-hole array is opened on the second sub-layer.
或者作为另一种示例,可以先在每层第一子层下表面设置掩模板,其中,掩模板上设置有至少两个子区域,至少两个子区域中相邻的子区域之间有间隙,在至少两个子区域上蒸镀第二子层。再去除掩模板,获得设置了第二通孔阵列的不透光层,然后将设置有第二通孔阵列的不透光层通过键合的方式在垂直方向上堆叠设置在一起。Or as another example, a mask may be first disposed on a lower surface of each of the first sub-layers, wherein at least two sub-regions are disposed on the mask, and a gap is formed between adjacent sub-regions of the at least two sub-regions, The second sub-layer is evaporated on at least two sub-regions. Then, the mask is removed to obtain an opaque layer provided with the second via array, and then the opaque layers provided with the second via array are stacked and stacked in the vertical direction.
光线控制层的实现方式二Light control layer implementation 2
请参考图20,每层不透光层,例如硅基板。在每层不透光层上开设第二通孔阵列,开设第二通孔阵列的方式可以为激光、机械加工压印、或微加工等方式。Referring to Figure 20, each layer of opaque layer, such as a silicon substrate. A second via array is formed on each of the opaque layers, and the second via array can be formed by laser, mechanical embossing, or micromachining.
在本申请实施例中,经物体反射后形成的反射光线透过显示屏形成反馈光线,由透镜阵列接收反馈光线,对反馈光线进行汇聚,形成入射图像传感器302的透射光线。In the embodiment of the present application, the reflected light formed by the object reflection forms a feedback light through the display screen, and the feedback light is received by the lens array to concentrate the feedback light to form the transmitted light of the incident image sensor 302.
在具体实现过程中,由于检测装置越来越向轻薄化发展,这样检测装置的体积受到限制,如果要保证检测装置的厚度在一定的范围内,则透镜的厚度也要在一定范围内。而当透镜的厚度一定时,透镜的焦距越短,透镜的直径也较小,那么在透镜的直径较小的情况下,透镜接收出射光线的角度范围较小,那么为保证能够接收从显示屏出射的任意角度的出射光线,并对出射光线进行汇聚,需要设置透镜阵列。在本申请实施例中,透镜阵列中的相邻透镜之间的间隙相同,且透镜阵列中每个透镜的直径均相同、每个透镜的焦距也均相同。In the specific implementation process, since the detecting device is increasingly thinner and lighter, the volume of the detecting device is limited. If the thickness of the detecting device is to be within a certain range, the thickness of the lens is also within a certain range. When the thickness of the lens is constant, the shorter the focal length of the lens and the smaller the diameter of the lens, the smaller the angle of the lens, the smaller the angle of the lens to receive the emitted light, so that the lens can be received from the display. A beam array is required to emit light at any angle and to converge the outgoing light. In the embodiment of the present application, the gap between adjacent lenses in the lens array is the same, and the diameter of each lens in the lens array is the same, and the focal length of each lens is also the same.
在本申请实施例中,透镜阵列包括的每个透镜的直径在预设直径范围内,例如预设直径范围为[5微米(um),600um],其中,考虑到透镜的加工精度和图像的分辨率,透镜的直径取值具体的可以为50um。透镜阵列包括的每个透镜的焦距在预设焦距范围内,例如预设焦距范围为[20um,800um],其中,考虑到透镜的加工精度和图像的分辨率,透镜的焦距的取值具体的可以为50um。其中,透镜阵列包括的透镜的材料可以是树脂、塑料、或玻璃等。In the embodiment of the present application, the diameter of each lens included in the lens array is within a preset diameter range, for example, the preset diameter ranges from [5 micrometers (um), 600 um], wherein the processing precision and image of the lens are taken into consideration. Resolution, the diameter of the lens can be specifically 50um. The focal length of each lens included in the lens array is within a preset focal length range, for example, the preset focal length range is [20 um, 800 um], wherein the focal length of the lens is specific in consideration of the processing precision of the lens and the resolution of the image. Can be 50um. The material of the lens included in the lens array may be resin, plastic, or glass.
在本申请实施例中,图像传感器302的设置方式包括但不限于以下两种实现方式, 下面分别介绍。In the embodiment of the present application, the setting manner of the image sensor 302 includes, but is not limited to, the following two implementation manners, which are respectively introduced below.
图像传感器302的设置方式一 Image sensor 302 setting mode one
请参考图21,图像传感器302均匀设置在相邻光源之间的间隔区域中的每个间隔区域。例如,以图像传感器302的数量是4,光源的数量是5为例,图像传感器302与光源之间相间设置。图像传感器302与光源的占空比大于阈值,例如,10:1或11:1。Referring to FIG. 21, the image sensor 302 is uniformly disposed in each of the spaced regions between adjacent light sources. For example, in the case where the number of image sensors 302 is 4 and the number of light sources is 5, the image sensor 302 is disposed between the light source and the light source. The duty cycle of image sensor 302 and the light source is greater than a threshold, for example, 10:1 or 11:1.
图像传感器302的设置方式二 Image sensor 302 is set in two ways
请参考图22,图像传感器302设置在发光组件300的正下方区域。在图像传感器302的设置方式二中,可以在相邻的光源之间的间隔区域设置玻璃块,也可以不设置,在本申请实施例中不作限制。Referring to FIG. 22, the image sensor 302 is disposed in a region directly under the light emitting assembly 300. In the second embodiment of the image sensor 302, the glass block may or may not be disposed in the space between the adjacent light sources, which is not limited in the embodiment of the present application.
在本申请实施例中,透射光线入射到图像传感器302,以形成用于表示纹路的图像的数据,其中,物体的纹路可以是指纹,或者是物体其它部位的纹路,例如掌纹等。在下文中,以纹路是指纹、形成的纹路图像是指纹图像为例,对图像传感器302的工作方式进行介绍。In the embodiment of the present application, the transmitted light is incident on the image sensor 302 to form data for representing an image of the texture, wherein the texture of the object may be a fingerprint, or a texture of other parts of the object, such as a palm print or the like. Hereinafter, the operation mode of the image sensor 302 will be described by taking a fingerprint as a fingerprint and forming a texture image as a fingerprint image.
图像传感器302包括图像传感层和图像芯片,图像传感层与图像芯片之间可通过柔性电路板连接。其中,在处理指纹时,图像传感层将形成的指纹图像转换为电信号,通过柔性电路板将电信号发送给图像芯片,图像芯片对接收到的电信号进行放大转换,并输出数字指纹图像到处理器端,图像芯片与处理器端采用串行外设接口(Serial Peripheral Interface,SPI)或I2C(Inter-Integrated Circuit)接口进行通信。The image sensor 302 includes an image sensing layer and an image chip, and the image sensing layer and the image chip can be connected by a flexible circuit board. Wherein, when processing the fingerprint, the image sensing layer converts the formed fingerprint image into an electrical signal, and sends the electrical signal to the image chip through the flexible circuit board, and the image chip amplifies and converts the received electrical signal, and outputs the digital fingerprint image. To the processor side, the image chip and the processor end communicate using a Serial Peripheral Interface (SPI) or an Inter-Integrated Circuit (I2C) interface.
在本申请实施例中,图像传感层可以为电荷耦合元件(Charge-coupled Device,CCD),也可以为互补金属氧化物半导体(Complementary Metal Oxide Semiconductor,CMOS)图像传感器302。In the embodiment of the present application, the image sensing layer may be a Charge-coupled Device (CCD) or a Complementary Metal Oxide Semiconductor (CMOS) image sensor 302.
在具体实现过程中,为了实现检测设备的量产,指纹图像传感层可以采用大面积图像传感器302,例如,采用有机材料作为感光介质的大面积图像传感器302,具体的,可将有机印刷光电探测器(Organic Printed Photodetecor,OPD)沉积到塑料有机薄膜晶体管(Thin film transistor,TFT)的背板上,以实现大面积图像传感;或者采用非晶硅玻璃基材的大面积图像传感器302,例如采用光电二极管和薄膜晶体管作为光学敏感单元,以玻璃或者塑料为基材实现。In a specific implementation process, in order to realize mass production of the detecting device, the fingerprint image sensing layer may adopt a large-area image sensor 302, for example, a large-area image sensor 302 using an organic material as a photosensitive medium, and specifically, organic printing photoelectric A detector (Organic Printed Photodetecor, OPD) is deposited on the back sheet of a plastic thin film transistor (TFT) to realize large-area image sensing; or a large-area image sensor 302 using an amorphous silicon glass substrate. For example, photodiodes and thin film transistors are used as optical sensing units, and glass or plastic is used as a substrate.
在本申请实施例中,通过准直组件301控制初始光线的传播方向,使得发光组件300中不同光源发出的初始光线照射在物体的表面上的不同区域,不同区域中各区域之间不重叠,这样不同区域的光线经物体反射形成的反射光线之间不会发生串扰,继而反射光线从显示屏出射形成的反馈光线之间也不会发生串扰,从而使得图像传感器302在接收反馈光线后能够形成用于表示纹路较为清晰的图像的数据,进而实现更精确的纹路检测,提高了显示屏下光学识别的精准度。In the embodiment of the present application, the direction of propagation of the initial light is controlled by the collimating component 301, so that the initial light emitted by different light sources in the light-emitting component 300 is irradiated on different regions on the surface of the object, and the regions in different regions do not overlap. In this way, the crosstalk of the reflected light formed by the light reflected by the object in different regions does not occur, and then the crosstalk between the feedback rays formed by the reflected light from the display screen does not occur, so that the image sensor 302 can form after receiving the feedback light. It is used to represent the data of the image with clearer texture, thus achieving more accurate texture detection and improving the accuracy of optical recognition under the display.
第六方面,请参见图23,本申请实施例提供一种检测装置,包括:In a sixth aspect, referring to FIG. 23, an embodiment of the present application provides a detecting apparatus, including:
发光组件1000,用于发出初始光线;a light emitting component 1000 for emitting initial light;
具有透光性的显示屏1001,包括平行设置的盖板玻璃和基板玻璃;用于在一物体的表面接触或靠近显示屏1001的上表面时,控制发光组件1000中不同的发光光源发出的初始光线透过盖板玻璃照射到物体的表面的不同区域上,初始光线经过物体的反射形成的反射光线透过基板玻璃形成反馈光线;The light-transmitting display screen 1001 includes a cover glass and a substrate glass disposed in parallel; and is used for controlling the initial emission of different light-emitting sources in the light-emitting assembly 1000 when the surface of the object is in contact with or close to the upper surface of the display screen 1001. The light is irradiated onto different areas of the surface of the object through the cover glass, and the reflected light formed by the reflection of the initial light passing through the object forms a feedback light through the substrate glass;
图像传感器1002,用于通过接收反馈光线,形成用于表示接触或靠近上表面的物体的表面的纹路的图像的数据。The image sensor 1002 is configured to form data for representing an image of a texture of a surface of an object contacting or approaching the upper surface by receiving the feedback light.
在本申请实施例中,通过显示屏1001控制初始光线的传播方向,使得发光组件1000中不同的光源发出的初始光线照射在物体的表面上的不同区域,不同区域中各区域之间不重叠,这样照射在不同区域的光线经物体反射后形成的反射光线之间不会发生串扰,继而反射光线透过显示屏1001形成的反馈光线之间也不会发生串扰,从而使得图像传感器1002在接收反馈光线后能够形成用于表示纹路较为清晰的图像的数据,进而实现更精确的纹路检测,提高了显示屏1001下光学识别的精准度。In the embodiment of the present application, the direction of propagation of the initial light is controlled by the display screen 1001, so that the initial light emitted by different light sources in the light-emitting component 1000 is irradiated on different regions on the surface of the object, and the regions in different regions do not overlap. In this way, crosstalk is not generated between the reflected rays formed by the light reflected in different regions by the object, and then the reflected light formed by the reflected light passing through the display screen 1001 does not crosstalk, so that the image sensor 1002 receives the feedback. After the light, data for representing a relatively clear image can be formed, thereby achieving more accurate texture detection and improving the accuracy of optical recognition under the display 1001.
请参见图24,在本申请实施例中,基板玻璃包括:Referring to FIG. 24, in the embodiment of the present application, the substrate glass includes:
透光部分和挡光部分,所述透光部分设置在相邻的挡光部分之间,所述挡光部分用于阻挡初始光线照射到显示屏1001的像素电极上,以控制初始光线由透光部分,从相邻的像素电极之间的间隙照射到物体的表面的不同区域上。a light-transmitting portion and a light-blocking portion, the light-transmitting portion is disposed between the adjacent light-blocking portions, wherein the light-blocking portion is configured to block the initial light from being incident on the pixel electrode of the display screen 1001 to control the initial light The light portion is irradiated from a gap between adjacent pixel electrodes onto different regions of the surface of the object.
在本申请实施例中,挡光部分的材料可以为不透光的材料,例如黑色塑料薄膜、硅片或金属薄片等,透光部分可以为透光玻璃,也可以是挡光部分之间的间隙。其中,挡光部分用于阻挡初始光线照射到显示屏1001的像素电极的背面上,即,控制初始光线经透光部分出射,然后从相邻的像素电极之间的间隙入射到物体的表面上,也就是透光部分和显示屏1001的相邻的像素电极之间的间隙一一对应。这不仅限制了初始光线的入射角度,还能够避免初始光线直接照射到像素电极的背面后被反射回来,无法入射显示屏1001,在减少光学散射的同时,提高了初始光线的入射率。In the embodiment of the present application, the material of the light blocking portion may be an opaque material, such as a black plastic film, a silicon wafer or a metal foil, and the light transmitting portion may be a light transmissive glass or a light blocking portion. gap. Wherein, the light blocking portion is for blocking the initial light from being irradiated onto the back surface of the pixel electrode of the display screen 1001, that is, controlling the initial light to be emitted through the light transmitting portion, and then incident on the surface of the object from the gap between the adjacent pixel electrodes. That is, the light-transmitting portion has a one-to-one correspondence with the gap between the adjacent pixel electrodes of the display screen 1001. This not only limits the incident angle of the initial light, but also prevents the initial light from being directly reflected on the back surface of the pixel electrode and is reflected back, and cannot enter the display screen 1001, thereby reducing the optical scattering and increasing the incident rate of the initial light.
在本申请实施例中,对挡光部分的介绍同第五方面中的挡光部分,在此不再赘述。In the embodiment of the present application, the description of the light blocking portion is the same as the light blocking portion in the fifth aspect, and details are not described herein again.
第七方面,请参考图25,本申请实施例提供一种终端设备,包括:A seventh aspect, please refer to FIG. 25. The embodiment of the present application provides a terminal device, including:
具有透光性的显示屏1200;a light-transmitting display screen 1200;
如第五方面所述的检测装置1201,用于在一物体与显示屏1200靠近或接触时,获得用于表示物体与显示屏1200靠近或接触的表面的纹路的图像的数据;The detecting device 1201 according to the fifth aspect, for obtaining data of an image of a texture indicating a surface of the object in proximity or contact with the display screen 1200 when an object approaches or contacts the display screen 1200;
处理器1202,耦合至检测装置1201,用于将图像的数据转化为所述图像,并识别所述图像是否为设定的图像。The processor 1202 is coupled to the detecting means 1201 for converting data of the image into the image and identifying whether the image is a set image.
在本申请实施例中,终端设备可以是独立的设备,或者是设置在其它设备里的模块,其它设备可以是包括但不限于移动电话(或者称为“蜂窝”电话),具有移动终端设备计算机,便携式、手持式、计算机内置的或者车载的移动装置,智能穿戴式设备等。例如,手机、平板电脑(PAD)、个人数字助理(Personal Digital Assistant,PDA)、销售终端(Point of Sales,POS)、车载电脑、智能手表、智能头盔、智能眼镜、或智能手环等设备等。In the embodiment of the present application, the terminal device may be a stand-alone device or a module disposed in another device, and the other devices may include, but are not limited to, a mobile phone (or “cellular” phone), and have a mobile terminal device computer. , portable, handheld, computer built-in or in-vehicle mobile devices, smart wearable devices, etc. For example, mobile phones, tablet computers (PADs), personal digital assistants (PDAs), point of sales (POS), in-vehicle computers, smart watches, smart helmets, smart glasses, or smart bracelets, etc. .
在本申请实施例中,在处理器1202接收到用于表示指纹图像的数据后,将指纹图像的数据转化为指纹图像,提取指纹图像的特征点,将提取的特征点与预先保存的特征点进行匹配,获取提取的特征点与预先保存的特征点之间的匹配度,当当匹配度大于预设值,例如90%,则表明匹配成功,当匹配度小于预设值时,则表明匹配失败,在匹配失败时,处理器1202会输出提示信息,例如,输出语音提示“请重新录入指纹”,或者通过灯光的闪烁提示指纹匹配失败。In the embodiment of the present application, after the processor 1202 receives the data for representing the fingerprint image, the data of the fingerprint image is converted into a fingerprint image, and the feature points of the fingerprint image are extracted, and the extracted feature points and the pre-saved feature points are extracted. Perform matching to obtain the matching degree between the extracted feature points and the pre-saved feature points. When the matching degree is greater than the preset value, for example, 90%, the matching is successful, and when the matching degree is less than the preset value, the matching fails. When the matching fails, the processor 1202 outputs a prompt message, for example, outputting a voice prompt “Please re-enter the fingerprint”, or prompting the fingerprint matching failure by flashing the light.
处理器1202具体可以是通用的中央处理器或特定应用集成电路(英文:Application  Specific Integrated Circuit,简称:ASIC),可以是一个或多个用于控制程序执行的集成电路,可以是使用现场可编程门阵列(英文:Field Programmable Gate Array,简称:FPGA)开发的硬件电路,可以是基带处理器。The processor 1202 may be a general-purpose central processing unit or an application specific integrated circuit (ASIC), and may be one or more integrated circuits for controlling program execution, and may be field-programmable. The hardware circuit developed by the Field Programmable Gate Array (FPGA) can be a baseband processor.
在本申请实施例中,终端设备还包括:In the embodiment of the present application, the terminal device further includes:
传感器1203,用于检测触控操作,该触控操作用于激活检测装置1201的检测功能。其中,触控操作可以是按压操作、或者滑动操作。The sensor 1203 is configured to detect a touch operation for activating the detecting function of the detecting device 1201. The touch operation may be a pressing operation or a sliding operation.
在检测到触控操作后,则激活检测装置1201的检测功能,为了降低检测装置1201的功耗,在本申请实施例中,处理器1202还用于:After detecting the touch operation, the detection function of the detecting device 1201 is activated. In order to reduce the power consumption of the detecting device 1201, in the embodiment of the present application, the processor 1202 is further configured to:
根据触控操作,确定触控操作的触控位置;Determining the touch position of the touch operation according to the touch operation;
控制检测装置1201的发光组件中包括的与触控位置对应位置处的光源处于点亮状态,发光组件中的其它光源处于关闭状态。The light source at the position corresponding to the touch position included in the light-emitting component of the control detecting device 1201 is in a lighting state, and the other light sources in the light-emitting component are in a closed state.
在本申请实施例中,传感器1203可以是压力传感器、或者是重力传感器。In the embodiment of the present application, the sensor 1203 may be a pressure sensor or a gravity sensor.
在本申请实施例中,继续以指纹识别为例,发光组件中包括第一光源、第二光源、第三光源及第四光源,当触控位置为显示屏1200上的指纹识别区域中的第一区域时,控制发光组件中的第一光源和第二光源开启,第三光源和第四光源关闭;当触控位置为显示屏1200上的指纹识别区域中的第二区域时,控制发光组件中的第三光源和第四光源开启,第一光源和第二光源关闭。由此,在触控位置不同时,控制发光组件中的部分光源处于开启状态,用于发出初始光源,控制发光组件中其它部分光源处于关闭状态,以降低终端设备的功耗。In the embodiment of the present application, taking fingerprint recognition as an example, the light emitting component includes a first light source, a second light source, a third light source, and a fourth light source. When the touch position is the first in the fingerprint identification area on the display screen 1200 In a region, the first light source and the second light source in the control light-emitting component are turned on, and the third light source and the fourth light source are turned off; when the touch position is the second region in the fingerprint recognition area on the display screen 1200, the light-emitting component is controlled The third light source and the fourth light source are turned on, and the first light source and the second light source are turned off. Therefore, when the touch positions are different, part of the light sources in the control light-emitting component are in an on state for emitting an initial light source, and other parts of the light source in the light-emitting assembly are controlled to be in a closed state to reduce power consumption of the terminal device.
第八方面,请参见图26,本申请实施例提供一种终端设备,包括:In an eighth aspect, referring to FIG. 26, an embodiment of the present application provides a terminal device, including:
如第六方面所述的检测装置1300,用于在一物体与检测装置1300靠近或接触时,获得用于表示所述物体与检测装置1300靠近或接触的表面的纹路的图像的数据;The detecting device 1300 according to the sixth aspect, for obtaining data of an image of a texture indicating a surface of the object in proximity or contact with the detecting device 1300 when an object approaches or contacts the detecting device 1300;
处理器1301,耦合至检测装置1300,用于将图像的数据转化为图像,并识别所述图像是否为设定的图像。The processor 1301 is coupled to the detecting device 1300 for converting data of the image into an image and identifying whether the image is a set image.
在本申请实施例中,终端设备可以是独立的设备,或者是设置在其它设备里的模块,其它设备可以是包括但不限于移动电话(或者称为“蜂窝”电话),具有移动终端设备计算机,便携式、手持式、计算机内置的或者车载的移动装置,智能穿戴式设备等。例如,手机、平板电脑(PAD)、个人数字助理(Personal Digital Assistant,PDA)、销售终端(Point of Sales,POS)、车载电脑、智能手表、智能头盔、智能眼镜、或智能手环等设备等。In the embodiment of the present application, the terminal device may be a stand-alone device or a module disposed in another device, and the other devices may include, but are not limited to, a mobile phone (or “cellular” phone), and have a mobile terminal device computer. , portable, handheld, computer built-in or in-vehicle mobile devices, smart wearable devices, etc. For example, mobile phones, tablet computers (PADs), personal digital assistants (PDAs), point of sales (POS), in-vehicle computers, smart watches, smart helmets, smart glasses, or smart bracelets, etc. .
在本申请实施例中,在处理器1301接收到用于表示指纹图像的数据后,将指纹图像的数据转化为指纹图像,提取指纹图像的特征点,将提取的特征点与预先保存的特征点进行匹配,获取提取的特征点与预先保存的特征点之间的匹配度,当当匹配度大于预设值,例如90%,则表明匹配成功,当匹配度小于预设值时,则表明匹配失败,在匹配失败时,处理器1301会输出提示信息,例如,输出语音提示“请重新录入指纹”,或者通过灯光的闪烁提示指纹匹配失败。In the embodiment of the present application, after the processor 1301 receives the data for representing the fingerprint image, the data of the fingerprint image is converted into a fingerprint image, and the feature points of the fingerprint image are extracted, and the extracted feature points and the pre-saved feature points are extracted. Perform matching to obtain the matching degree between the extracted feature points and the pre-saved feature points. When the matching degree is greater than the preset value, for example, 90%, the matching is successful, and when the matching degree is less than the preset value, the matching fails. When the matching fails, the processor 1301 outputs a prompt message, for example, outputting a voice prompt "Please re-enter the fingerprint", or prompting the fingerprint matching failure by flashing the light.
处理器1301具体可以是通用的中央处理器或特定应用集成电路(英文:Application Specific Integrated Circuit,简称:ASIC),可以是一个或多个用于控制程序执行的集成电路,可以是使用现场可编程门阵列(英文:Field Programmable Gate Array, 简称:FPGA)开发的硬件电路,可以是基带处理器。The processor 1301 may be a general-purpose central processing unit or an application specific integrated circuit (ASIC), and may be one or more integrated circuits for controlling program execution, and may be field-programmable. The hardware circuit developed by Field Array (English: Field Programmable Gate Array, referred to as FPGA) can be a baseband processor.
在本申请实施例中,终端设备还包括:In the embodiment of the present application, the terminal device further includes:
传感器1302,用于检测触控操作,该触控操作用于激活检测装置1300的检测功能。其中,触控操作可以是按压操作、或者滑动操作。The sensor 1302 is configured to detect a touch operation for activating the detecting function of the detecting device 1300. The touch operation may be a pressing operation or a sliding operation.
在检测到触控操作后,则激活检测装置1300的检测功能,为了降低检测装置1300的功耗,在本申请实施例中,处理器1301还用于:After detecting the touch operation, the detection function of the detection device 1300 is activated. In order to reduce the power consumption of the detection device 1300, in the embodiment of the present application, the processor 1301 is further configured to:
根据触控操作,确定触控操作的触控位置;Determining the touch position of the touch operation according to the touch operation;
控制检测装置1300的发光组件中包括的与所述触控位置对应位置处的光源处于点亮状态,所述发光组件中的其它光源处于关闭状态。The light source at the position corresponding to the touch position included in the light-emitting component of the control detecting device 1300 is in a lighting state, and the other light sources in the light-emitting component are in a closed state.
在本申请实施例中,传感器1302可以是压力传感器、或者是重力传感器。In the embodiment of the present application, the sensor 1302 may be a pressure sensor or a gravity sensor.
在本申请实施例中,继续以指纹识别为例,发光组件中包括第一光源、第二光源、第三光源及第四光源,当触控位置为显示屏上的指纹识别区域中的第一区域时,控制发光组件中的第一光源和第二光源开启,第三光源和第四光源关闭;当触控位置为检测装置1300上的指纹识别区域中的第二区域时,控制发光组件中的第三光源和第四光源开启,第一光源和第二光源关闭。由此,在触控位置不同时,控制发光组件中的部分光源处于开启状态,用于发出初始光源,控制发光组件中其它部分光源处于关闭状态,以降低终端设备的功耗。In the embodiment of the present application, taking fingerprint recognition as an example, the light emitting component includes a first light source, a second light source, a third light source, and a fourth light source, and the touch position is the first in the fingerprint identification area on the display screen. In the area, the first light source and the second light source in the control light-emitting component are turned on, and the third light source and the fourth light source are turned off; when the touch position is the second area in the fingerprint recognition area on the detecting device 1300, the light-emitting component is controlled The third light source and the fourth light source are turned on, and the first light source and the second light source are turned off. Therefore, when the touch positions are different, part of the light sources in the control light-emitting component are in an on state for emitting an initial light source, and other parts of the light source in the light-emitting assembly are controlled to be in a closed state to reduce power consumption of the terminal device.
显然,本领域的技术人员可以对本申请进行各种改动和变型而不脱离本申请的精神和范围。这样,倘若本申请的这些修改和变型属于本申请权利要求及其等同技术的范围之内,则本申请也意图包含这些改动和变型在内。It will be apparent to those skilled in the art that various modifications and changes can be made in the present application without departing from the spirit and scope of the application. Thus, it is intended that the present invention cover the modifications and variations of the present invention.

Claims (25)

  1. 一种检测装置,其特征在于,包括:A detecting device, comprising:
    发光组件,用于发出初始光线;a light emitting component for emitting initial light;
    控制组件,用于控制从具有透光性的显示屏出射的反馈光线的传播方向,以形成成像光线,其中,所述反馈光线为在一物体靠近或接触所述显示屏时,在所述初始光线的照射下,所述物体靠近或接触所述显示屏的一面的纹路所反射的光线;a control component for controlling a propagation direction of the feedback light emitted from the light-transmitting display screen to form an imaging light, wherein the feedback light is at an initial when an object approaches or contacts the display screen The light reflected by the surface of the side of the display screen when the light is illuminated by the light;
    图像传感器,用于通过接收所述成像光线,形成用于表示所述物体靠近或接触所述显示模组的一面的纹路的图像的数据。An image sensor for forming data for indicating an image of the texture of the object approaching or contacting one side of the display module by receiving the imaging light.
  2. 根据权利要求1所述的检测装置,其特征在于,所述控制组件包括:The detecting device according to claim 1, wherein said control component comprises:
    透镜阵列,用于汇聚所述反馈光线,以形成入射所述图像传感器的透射光线;a lens array for collecting the feedback light to form a transmitted light incident on the image sensor;
    导光组件,设置在所述透镜阵列和所述图像传感器之间,用于消除从所述透镜阵列中每个透镜出射的透射光线之间发生的串扰,以形成所述成像光线。A light guiding component is disposed between the lens array and the image sensor for eliminating crosstalk occurring between transmitted light emitted from each lens in the lens array to form the imaged light.
  3. 根据权利要求2所述的检测装置,其特征在于,所述导光组件包括:The detecting device according to claim 2, wherein the light guiding component comprises:
    在垂直方向上堆叠设置的N层不透光层,所述N层不透光层中的每层不透光层开设有通孔阵列,所述每层不透光层开设的通孔阵列的位置完全重合,所述通孔阵列包括贯穿所述每层不透光层的第一通孔和第二通孔,N为整数;An N-layer opaque layer is disposed in a vertical direction, and each of the opaque layers of the N-layer opaque layer is provided with a through-hole array, and each of the opaque layers is provided with a through-hole array The positions are completely coincident, and the through hole array includes a first through hole and a second through hole penetrating through each of the opaque layers, and N is an integer;
    其中,所述第一通孔和所述第二通孔之间具有隔断,以消除从所述第一透镜出射的透射光线和从所述第二透镜出射的透射光线之间发生的串扰。Wherein the partition between the first through hole and the second through hole has a gap to eliminate crosstalk occurring between the transmitted light emitted from the first lens and the transmitted light emitted from the second lens.
  4. 根据权利要求3所述的检测装置,其特征在于,所述N为对根据占空比的函数获得值向上取整得到的;其中,所述占空比的函数为1和所述占空比之间差值的倒数,所述占空比为所述透镜阵列中的透镜的直径与所述透镜阵列的透镜的周期的比值。The detecting apparatus according to claim 3, wherein said N is obtained by rounding up a value obtained according to a function of a duty ratio; wherein a function of said duty ratio is 1 and said duty ratio The inverse of the difference between the duty is the ratio of the diameter of the lens in the lens array to the period of the lens of the lens array.
  5. 根据权利要求2所述的检测装置,其特征在于,所述导光组件包括:The detecting device according to claim 2, wherein the light guiding component comprises:
    不透光层,所述不透光层开设有通孔阵列,所述通孔阵列包括贯穿所述不透光层的第一通孔和第二通孔;An opaque layer, the opaque layer is provided with a through hole array, and the through hole array includes a first through hole and a second through hole penetrating the opaque layer;
    其中,所述第一通孔和所述第二通孔之间具有隔断,以消除从所述第一透镜出射的透射光线和从所述第二透镜出射的透射光线之间发生的串扰。Wherein the partition between the first through hole and the second through hole has a gap to eliminate crosstalk occurring between the transmitted light emitted from the first lens and the transmitted light emitted from the second lens.
  6. 根据权利要求5所述的检测装置,其特征在于,所述不透光层的厚度小于或等于从所述透镜阵列中的透镜的光心到所述图像传感器之间的垂直距离,以使从所述透镜阵列的第一透镜出射的透射光线经所述第一通孔出射到所述图像传感器上所述第一通孔的投影所在的第一区域,从所述透镜阵列的第二透镜出射的透射光线经所述第二通孔出射到所述图像传感器上所述第二通孔的投影所在的第二区域。The detecting device according to claim 5, wherein the thickness of the opaque layer is less than or equal to a vertical distance from an optical center of a lens in the lens array to the image sensor, so that The transmitted light emitted from the first lens of the lens array is emitted through the first through hole to a first region where the projection of the first through hole on the image sensor is located, and is emitted from the second lens of the lens array The transmitted light is emitted through the second through hole to a second region of the image sensor where the projection of the second through hole is located.
  7. 根据权利要求3-6任一权项所述的检测装置,其特征在于,所述第一通孔的孔径小于或等于所述第一透镜的直径,所述第二通孔的孔径小于或等于所述第二透镜的直径。The detecting device according to any one of claims 3-6, wherein the aperture of the first through hole is smaller than or equal to the diameter of the first lens, and the aperture of the second through hole is less than or equal to The diameter of the second lens.
  8. 根据权利要求2所述的检测装置,其特征在于,所述导光组件为光纤面板,所述光纤面板的数值孔径小于预设值,以使所述光纤面板接收从所述透镜阵列出射的在预设角度范围的透射光线,以消除从所述透镜阵列的第一透镜出射的透射光线和从所述透镜阵列的第二透镜出射的透射光线之间发生的串扰;The detecting device according to claim 2, wherein the light guiding component is a fiber optic panel, and a numerical aperture of the fiber optic panel is smaller than a preset value, so that the fiber optic panel receives the output from the lens array. Presetting an angular range of transmitted light to eliminate crosstalk occurring between transmitted light emerging from the first lens of the lens array and transmitted light emerging from the second lens of the lens array;
    其中,所述预设值为所述透镜阵列中的透镜的直径与所述透镜阵列和所述光纤面板 之间的距离的比值。Wherein the preset value is a ratio of a diameter of a lens in the lens array to a distance between the lens array and the fiber optic panel.
  9. 根据权利要求1-8任一权项所述的检测装置,其特征在于,A detecting device according to any of claims 1-8, characterized in that
    所述检测装置还包括:The detecting device further includes:
    准直组件,用于控制所述发光组件中包括的不同光源发出的初始光线照射在所述物体的一面上的不同区域。And a collimating component for controlling different light emitted by different light sources included in the light emitting component to illuminate different regions on one side of the object.
  10. 根据权利要求9所述的检测装置,其特征在于,所述准直组件包括:The detecting device according to claim 9, wherein the collimating assembly comprises:
    透光部分和挡光部分,所述透光部分设置在相邻的挡光部分之间,所述挡光部分用于阻挡所述初始光线照射到所述显示屏的像素电极上,以控制所述初始光线由所述透光部分,从相邻的像素电极之间的间隙照射到所述物体的一面上的不同区域。a light transmitting portion disposed between the adjacent light blocking portions, the light blocking portion for blocking the initial light from being incident on the pixel electrode of the display screen to control the The initial light is irradiated from the light transmitting portion to a different region on one side of the object from a gap between adjacent pixel electrodes.
  11. 一种检测装置,其特征在于,包括:A detecting device, comprising:
    控制组件,用于控制从具有透光性的显示屏出射的反馈光线的传播方向,以形成成像光线,其中,所述反馈光线为在一物体靠近或接触所述显示屏时,在所述显示屏发出的初始光线的照射下,所述物体靠近或接触所述显示屏的一面的纹路所反射的光线;a control component for controlling a propagation direction of the feedback light emitted from the light-transmitting display screen to form an imaging light, wherein the feedback light is in an image when an object approaches or contacts the display screen The light reflected by the surface of the side of the display screen illuminated by the object under the illumination of the initial light emitted by the screen;
    图像传感器,用于通过接收所述成像光线,形成用于表示所述物体靠近或接触所述显示模组的一面的纹路的图像的数据。An image sensor for forming data for indicating an image of the texture of the object approaching or contacting one side of the display module by receiving the imaging light.
  12. 一种终端设备,其特征在于,包括:A terminal device, comprising:
    具有透光性的显示屏;a light-transmitting display;
    如权利要求1-10任一权项所述的检测装置,用于在一物体与所述显示屏靠近或接触时,获得用于表示所述物体与所述显示屏靠近或接触的一面的纹路的图像的数据;A detecting device according to any one of claims 1 to 10, for obtaining a texture for indicating a side of the object in proximity or contact with the display screen when an object approaches or contacts the display screen Data of the image;
    处理器,耦合至所述检测装置,用于将所述图像的数据转化为所述图像,并识别所述图像是否为设定的图像。A processor coupled to the detecting means for converting data of the image into the image and identifying whether the image is a set image.
  13. 一种终端设备,其特征在于,包括:A terminal device, comprising:
    具有透光性的显示屏;a light-transmitting display;
    如权利要求11所述的检测装置,用于在一物体与所述显示屏靠近或接触时,获得用于表示所述物体与所述显示屏靠近或接触的一面的纹路的图像的数据;A detecting device according to claim 11 for obtaining data of an image of a texture for indicating a side of said object in proximity or contact with said display screen when an object approaches or contacts said display screen;
    处理器,耦合至所述检测装置,用于将所述图像的数据转化为所述图像,并识别所述图像是否为设定的图像。A processor coupled to the detecting means for converting data of the image into the image and identifying whether the image is a set image.
  14. 一种检测装置,其特征在于,包括:A detecting device, comprising:
    发光组件,用于发出初始光线;a light emitting component for emitting initial light;
    准直组件,用于在一物体的表面接触或靠近具有透光性的显示屏的上表面时,控制所述发光组件中不同的发光光源发出的初始光线透过所述显示屏照射到所述物体的表面的不同区域上,所述初始光线经过所述物体的反射形成的反射光线透过所述显示屏形成反馈光线;a collimating assembly for controlling an initial light emitted by a different illuminating light source in the illuminating component to be illuminated by the display screen when the surface of the object is in contact with or close to the upper surface of the transmissive display screen The different forms of the surface of the object, the reflected light formed by the reflection of the initial light passing through the object forms a feedback light through the display screen;
    图像传感器,用于通过接收所述反馈光线,形成用于表示接触或靠近所述上表面的所述物体的表面的纹路的图像的数据。An image sensor for forming data for representing an image of a texture of a surface of the object contacting or near the upper surface by receiving the feedback ray.
  15. 根据权利要求14所述的检测装置,其特征在于,所述准直组件包括:The detecting device according to claim 14, wherein the collimating assembly comprises:
    透光部分和挡光部分,所述透光部分设置在相邻的挡光部分之间,所述挡光部分用于阻挡所述初始光线照射到所述显示屏的像素电极上,以控制所述初始光线由所述透光部分,从相邻的像素电极之间的间隙照射到所述物体的表面的不同区域上。a light transmitting portion disposed between the adjacent light blocking portions, the light blocking portion for blocking the initial light from being incident on the pixel electrode of the display screen to control the The initial light is irradiated from the light transmitting portion from a gap between adjacent pixel electrodes to different regions of the surface of the object.
  16. 根据权利要求15所述的检测装置,其特征在于,所述透光部分的深度和宽度的比值大于第一预设阈值。The detecting device according to claim 15, wherein a ratio of a depth to a width of the light transmitting portion is greater than a first predetermined threshold.
  17. 根据权利要求15或16所述的检测装置,其特征在于,所述挡光部分为挡光块,所述相邻的挡光块之间的间隙构成所述透光部分。The detecting device according to claim 15 or 16, wherein the light blocking portion is a light blocking block, and a gap between the adjacent light blocking blocks constitutes the light transmitting portion.
  18. 根据权利要求15或16所述的检测装置,其特征在于,所述准直组件包括:The detecting device according to claim 15 or 16, wherein the collimating assembly comprises:
    不透光层,在所述不透光层上开设有通孔阵列,所述通孔阵列构成所述透光部分,所述不透光层上除所述通孔阵列之外的其它区域构成所述挡光部分。An opaque layer is provided with an array of through holes on the opaque layer, the through hole array constituting the light transmitting portion, and the opaque layer is formed other than the through hole array The light blocking portion.
  19. 根据权利要求15或16所述的检测装置,其特征在于,所述准直组件包括:The detecting device according to claim 15 or 16, wherein the collimating assembly comprises:
    在垂直方向上堆叠设置的N层不透光层,所述N层不透光层中的每层不透光层开设有通孔阵列,所述每层不透光层开设的通孔阵列的位置完全重合,所述N层不透光层中的通孔阵列构成所述透光部分,所述N层不透光层上除所述通孔阵列之外的其它区域构成所述挡光部分,N为大于2的整数。An N-layer opaque layer is disposed in a vertical direction, and each of the opaque layers of the N-layer opaque layer is provided with a through-hole array, and each of the opaque layers is provided with a through-hole array The positions are completely coincident, and the through-hole array in the N-layer opaque layer constitutes the light-transmitting portion, and other regions of the N-layer opaque layer except the through-hole array constitute the light-blocking portion , N is an integer greater than 2.
  20. 根据权利要求14-19任一权项所述的检测装置,其特征在于,所述图像传感器均匀设置在所述发光组件中相邻的光源之间的间隔区域中的每个间隔区域;或The detecting device according to any one of claims 14 to 19, wherein the image sensor is uniformly disposed in each of the spaced regions between adjacent light sources in the light emitting component; or
    所述图像传感器设置在所述发光组件的正下方区域。The image sensor is disposed in a region directly under the light emitting assembly.
  21. 一种检测装置,其特征在于,包括:A detecting device, comprising:
    发光组件,用于发出初始光线;a light emitting component for emitting initial light;
    具有透光性的显示屏,包括平行设置的盖板玻璃和基板玻璃;用于在一物体的表面接触或靠近所述显示屏的上表面时,控制所述发光组件中不同的发光光源发出的初始光线透过所述盖板玻璃照射到所述物体的表面的不同区域上,所述初始光线经过所述物体的反射形成的反射光线透过所述基板玻璃形成反馈光线;a transmissive display screen comprising a cover glass and a substrate glass disposed in parallel; for controlling the emission of different illumination sources in the illumination assembly when the surface of the object contacts or is adjacent to the upper surface of the display screen The initial light is transmitted through the cover glass to different regions of the surface of the object, and the reflected light formed by the reflection of the initial light through the object passes through the substrate glass to form feedback light;
    图像传感器,用于通过接收所述反馈光线,形成用于表示接触或靠近所述上表面的所述物体的表面的纹路的图像的数据。An image sensor for forming data for representing an image of a texture of a surface of the object contacting or near the upper surface by receiving the feedback ray.
  22. 根据权利要求21所述的检测装置,其特征在于,所述基板玻璃包括:The detecting device according to claim 21, wherein the substrate glass comprises:
    透光部分和挡光部分,所述透光部分设置在相邻的挡光部分之间,所述挡光部分用于阻挡所述初始光线照射到所述显示屏的像素电极上,以控制所述初始光线由所述透光部分,从相邻的像素电极之间的间隙照射到所述物体的表面的不同区域上。a light transmitting portion disposed between the adjacent light blocking portions, the light blocking portion for blocking the initial light from being incident on the pixel electrode of the display screen to control the The initial light is irradiated from the light transmitting portion from a gap between adjacent pixel electrodes to different regions of the surface of the object.
  23. 一种终端设备,其特征在于,包括:A terminal device, comprising:
    具有透光性的显示屏;a light-transmitting display;
    如权利要求14-21任一权项所述的检测装置,用于在一物体与所述显示屏靠近或接触时,获得用于表示所述物体与所述显示屏靠近或接触的表面的纹路的图像的数据;A detecting device according to any one of claims 14 to 21, for obtaining a texture for indicating a surface of the object in proximity or contact with the display screen when an object approaches or contacts the display screen Data of the image;
    处理器,耦合至所述检测装置,用于将所述图像的数据转化为所述图像,并识别所述图像是否为设定的图像。A processor coupled to the detecting means for converting data of the image into the image and identifying whether the image is a set image.
  24. 根据权利要求23所述的终端设备,其特征在于,所述终端设备还包括:The terminal device according to claim 23, wherein the terminal device further comprises:
    传感器,耦合至所述处理器,用于检测触控操作,所述触控操作用于激活所述检测装置的检测功能;a sensor coupled to the processor for detecting a touch operation, the touch operation for activating a detection function of the detecting device;
    在所述检测装置的检测功能被激活后,所述处理器还用于:After the detecting function of the detecting device is activated, the processor is further configured to:
    确定所述触控操作的触控位置;Determining a touch position of the touch operation;
    控制所述检测装置的发光组件中包括的与所述触控位置对应位置处的光源处于点 亮状态,所述发光组件中的其它光源处于关闭状态。The light source at the position corresponding to the touch position included in the light-emitting component of the detecting device is in an on state, and the other light sources in the light-emitting assembly are in a closed state.
  25. 一种终端设备,其特征在于,包括:A terminal device, comprising:
    如权利要求21-22任一权项所述的检测装置,用于在一物体与所述检测装置靠近或接触时,获得用于表示所述物体与所述检测装置靠近或接触的表面的纹路的图像的数据;A detecting device according to any one of claims 21 to 22, for obtaining a texture for indicating a surface of the object in proximity or contact with the detecting device when an object approaches or contacts the detecting device Data of the image;
    处理器,耦合至所述检测装置,用于将所述图像的数据转化为所述图像,并识别所述图像是否为设定的图像。A processor coupled to the detecting means for converting data of the image into the image and identifying whether the image is a set image.
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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109564627A (en) * 2018-10-30 2019-04-02 深圳市汇顶科技股份有限公司 Have optical finger print device and hand-held device under the screen of the anti-fake sensing function of optical finger print
CN110286509A (en) * 2019-05-08 2019-09-27 江苏集萃有机光电技术研究所有限公司 Transparent display and transparence display method
CN110427919A (en) * 2019-08-16 2019-11-08 深圳阜时科技有限公司 Optical detection apparatus
WO2020150888A1 (en) * 2019-01-22 2020-07-30 深圳市汇顶科技股份有限公司 Fingerprint recognition apparatus and electronic device
WO2021036283A1 (en) * 2019-08-30 2021-03-04 Shenzhen GOODIX Technology Co., Ltd. Under-display illumination with external light sources
CN114759070A (en) * 2022-03-30 2022-07-15 上海天马微电子有限公司 Display device

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105260708A (en) * 2015-09-25 2016-01-20 联想(北京)有限公司 Detection apparatus, electronic equipment, and information processing method
CN105550664A (en) * 2016-01-08 2016-05-04 上海箩箕技术有限公司 Optical fingerprint sensor module
CN106022324A (en) * 2016-08-04 2016-10-12 京东方科技集团股份有限公司 Line recognition and display device
CN106228147A (en) * 2016-08-04 2016-12-14 京东方科技集团股份有限公司 A kind of lines harvester, its lines acquisition method and display device
CN206058223U (en) * 2016-08-04 2017-03-29 京东方科技集团股份有限公司 A kind of lines identification display device
CN206058224U (en) * 2016-08-04 2017-03-29 京东方科技集团股份有限公司 A kind of lines harvester and display device

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105260708A (en) * 2015-09-25 2016-01-20 联想(北京)有限公司 Detection apparatus, electronic equipment, and information processing method
CN105550664A (en) * 2016-01-08 2016-05-04 上海箩箕技术有限公司 Optical fingerprint sensor module
CN106022324A (en) * 2016-08-04 2016-10-12 京东方科技集团股份有限公司 Line recognition and display device
CN106228147A (en) * 2016-08-04 2016-12-14 京东方科技集团股份有限公司 A kind of lines harvester, its lines acquisition method and display device
CN206058223U (en) * 2016-08-04 2017-03-29 京东方科技集团股份有限公司 A kind of lines identification display device
CN206058224U (en) * 2016-08-04 2017-03-29 京东方科技集团股份有限公司 A kind of lines harvester and display device

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109564627A (en) * 2018-10-30 2019-04-02 深圳市汇顶科技股份有限公司 Have optical finger print device and hand-held device under the screen of the anti-fake sensing function of optical finger print
CN109564627B (en) * 2018-10-30 2023-09-05 深圳市汇顶科技股份有限公司 Under-screen optical fingerprint device with optical fingerprint anti-counterfeiting sensing function and handheld device
WO2020150888A1 (en) * 2019-01-22 2020-07-30 深圳市汇顶科技股份有限公司 Fingerprint recognition apparatus and electronic device
US11275922B2 (en) 2019-01-22 2022-03-15 Shenzhen GOODIX Technology Co., Ltd. Fingerprint identification apparatus and electronic device
CN110286509A (en) * 2019-05-08 2019-09-27 江苏集萃有机光电技术研究所有限公司 Transparent display and transparence display method
CN110427919A (en) * 2019-08-16 2019-11-08 深圳阜时科技有限公司 Optical detection apparatus
WO2021036283A1 (en) * 2019-08-30 2021-03-04 Shenzhen GOODIX Technology Co., Ltd. Under-display illumination with external light sources
US11320693B2 (en) 2019-08-30 2022-05-03 Shenzhen GOODIX Technology Co., Ltd. Under-display illumination with external light sources
CN114759070A (en) * 2022-03-30 2022-07-15 上海天马微电子有限公司 Display device

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