CN113467646A - Display panel and display device - Google Patents
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- CN113467646A CN113467646A CN202110740703.8A CN202110740703A CN113467646A CN 113467646 A CN113467646 A CN 113467646A CN 202110740703 A CN202110740703 A CN 202110740703A CN 113467646 A CN113467646 A CN 113467646A
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
- G06F3/042—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by opto-electronic means
- G06F3/0421—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by opto-electronic means by interrupting or reflecting a light beam, e.g. optical touch-screen
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
- G06F3/0416—Control or interface arrangements specially adapted for digitisers
- G06F3/0418—Control or interface arrangements specially adapted for digitisers for error correction or compensation, e.g. based on parallax, calibration or alignment
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/048—Interaction techniques based on graphical user interfaces [GUI]
- G06F3/0487—Interaction techniques based on graphical user interfaces [GUI] using specific features provided by the input device, e.g. functions controlled by the rotation of a mouse with dual sensing arrangements, or of the nature of the input device, e.g. tap gestures based on pressure sensed by a digitiser
- G06F3/0488—Interaction techniques based on graphical user interfaces [GUI] using specific features provided by the input device, e.g. functions controlled by the rotation of a mouse with dual sensing arrangements, or of the nature of the input device, e.g. tap gestures based on pressure sensed by a digitiser using a touch-screen or digitiser, e.g. input of commands through traced gestures
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Abstract
The embodiment of the application discloses display panel and display device includes: a plurality of first infrared light detection units located in a non-display area within the display panel; a first light shielding layer located in a non-display area in the display panel, wherein the first light shielding layer completely covers the plurality of first infrared light detection units and gaps between adjacent first infrared light detection units in a direction perpendicular to a plane of the display panel; the transmittance of the first shading layer to infrared light is greater than that to visible light, so that the proportion of visible light signals in optical signals received by the infrared light detection unit is reduced when the display panel performs infrared identification, the interference of the visible light signals received by the infrared light detection unit to the received infrared light signals is reduced, the identification precision of the infrared light detection unit is improved, the light sensation identification precision of the display panel is finally improved, and the user experience is improved.
Description
Technical Field
The present application relates to the field of display technologies, and in particular, to a display panel and a display device including the same.
Background
With the development of display technologies, more and more display panels integrate a light sensation identification function to improve the integration level of the display panels, thereby improving the user experience. However, when the existing display panel integrated with the light sensing identification function is applied, the light sensing identification precision is low, and the user experience needs to be improved.
Disclosure of Invention
In order to solve the above problem, an embodiment of the application provides a display panel and a display device to improve light sensation identification precision, thereby improving user experience.
Specifically, the embodiment of the present application provides the following technical solutions:
a display panel, comprising:
a plurality of first infrared light detection units located in a non-display area within the display panel;
a first light shielding layer located in a non-display area in the display panel, wherein the first light shielding layer completely covers the plurality of first infrared light detection units and gaps between adjacent first infrared light detection units in a direction perpendicular to a plane of the display panel;
the first shading layer has a transmittance to infrared light larger than that to visible light.
A display device, comprising:
a display panel according to any one of claims 1 to 13;
the backlight module is positioned on the non-display side of the display area of the display panel.
The display panel and the display device comprising the display panel provided by the embodiment of the application are characterized in that when the display panel is internally provided with the infrared light detection units such as the first infrared light detection unit, the second infrared light detection unit and/or the third infrared light detection unit, the display panel is also internally provided with the light shielding layers such as the first light shielding layer, the second light shielding layer and the third light shielding layer corresponding to the display panel, and the light shielding layers such as the first light shielding layer, the second light shielding layer and the third light shielding layer have the transmittance to infrared light higher than that to visible light, so that the proportion of visible light signals in optical signals received by the infrared light detection unit is reduced when the display panel performs infrared identification, and then the interference of the visible light signals received by the infrared light detection unit to the received infrared light signals is reduced, the recognition accuracy of the infrared light detection unit is improved, the light sensation recognition accuracy of the display panel is finally improved, and the user experience is improved.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic top view of a display panel according to an embodiment of the present application;
FIG. 2 is a cross-sectional view of the display panel shown in FIG. 1 along direction AA';
FIG. 3 is a schematic diagram of wavelength distributions of different optical bands;
FIG. 4 is a schematic top view of a display panel according to another embodiment of the present application;
FIG. 5 is a cross-sectional view of the display panel shown in FIG. 4 taken along direction BB';
FIG. 6 is a schematic top view of a display panel according to yet another embodiment of the present application;
FIG. 7 is a cross-sectional view of the display panel shown in FIG. 6 taken along the direction CC';
FIG. 8 is another cross-sectional view of the display panel shown in FIG. 6 taken along direction CC';
FIG. 9 is a further cross-sectional view of the display panel of FIG. 6 taken along direction CC';
FIG. 10 is a further cross-sectional view of the display panel shown in FIG. 6, taken along the direction CC';
FIG. 11 is a schematic top view of a display panel according to yet another embodiment of the present application;
fig. 12 is a cross-sectional view of the display panel shown in fig. 11 taken along direction DD';
FIG. 13 is a schematic top view of a display panel according to yet another embodiment of the present application;
fig. 14 is a cross-sectional view of the display panel shown in fig. 13 taken along the direction EE';
FIG. 15 is another cross-sectional view of the display panel shown in FIG. 13 taken along direction EE';
FIG. 16 is a cross-sectional view of a display panel according to an embodiment of the present application;
fig. 17 is a cross-sectional view of a display panel according to an embodiment of the present application;
FIG. 18 is a further cross-sectional view of a display panel provided in accordance with an embodiment of the present application;
fig. 19 is a cross-sectional view of a display panel according to an embodiment of the present application;
FIG. 20 is a further cross-sectional view of a display panel provided in accordance with an embodiment of the present application;
fig. 21 is a cross-sectional view of a display device provided in one embodiment of the present application.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application, but the present application may be practiced in other ways than those described herein, and it will be apparent to those of ordinary skill in the art that the present application is not limited to the specific embodiments disclosed below.
As described in the background section, when the existing display panel integrated with the light sensing recognition function is applied, the light sensing recognition accuracy is low, and the user experience needs to be improved.
The inventor researches and discovers that in practical application, the position, corresponding to the infrared sensor, in the display panel can transmit infrared light and visible light, and the infrared sensor can sense the visible light besides the infrared light.
The existing display panel integrated with the light sensing identification function generally adopts infrared light to perform light sensing identification, specifically, infrared light is emitted by an external infrared lamp, and light sensing identification is performed by reflected light of the infrared light irradiated on a target object, the infrared light emitted by the external infrared lamp is divergent light, and the reflected light of the infrared light emitted by the infrared lamp irradiated on the target object is also divergent in a transmission path, so that the infrared light received by an area where an infrared sensor is located is smaller in light quantity and light intensity, and the visible light received by the infrared sensor interferes greatly when the infrared sensor identifies the received infrared light, thereby affecting the identification accuracy of the infrared sensor.
Although the intensity of light emitted by the infrared lamp can be increased by increasing the driving current of the infrared lamp, so as to increase the sensing amount received by the infrared sensor, the power consumption of the display panel is increased, and the power consumption of the display panel is larger.
In view of the above, the embodiment of the present application provides a display panel, as shown in fig. 1, which includes a display area 100 and a non-display area 200, and fig. 2 is a schematic cross-sectional view of the display panel shown in fig. 1 along the direction AA', as shown in fig. 2, which includes:
a plurality of first infrared light detecting units 10 positioned in a non-display region 200 within the display panel;
a first light shielding layer 20 located in a non-display region 200 in the display panel, the first light shielding layer completely covering the first infrared light detecting unit 10 and a gap between adjacent first infrared light detecting units 10 in a direction perpendicular to a plane of the display panel;
the first light-shielding layer 20 has a transmittance for infrared light that is greater than a transmittance for visible light.
The display panel that this application embodiment provided when non-display area 200 in the display panel sets up first infrared light detection unit 10, still is in non-display area 200 in the display panel sets up first light shield layer 20, just first light shield layer 20 is greater than its transmissivity to visible light to the transmissivity of infrared light, thereby reduces display panel is when carrying out infrared identification, the visible light signal that first infrared light detection unit 10 received, and then reduces interference when visible light signal that first infrared light detection unit 10 received discerns its infrared light signal that receives improves first infrared light detection unit 10's identification precision, finally improves display panel's light sense identification precision improves user experience.
Specifically, in addition to the above embodiments, in one embodiment of the present application, the first infrared light detection unit is an infrared light detection sensor, but the present application does not limit this, and in other embodiments of the present application, the first infrared light detection unit may also be another element capable of detecting infrared light, as the case may be.
Optionally, on the basis of any of the foregoing embodiments, in an embodiment of the present application, the transmittance of the first light shielding layer to infrared light is not less than 90%, and the transmittance to visible light is not more than 5%, so as to further reduce the visible light signal received by the first infrared detection unit when the display panel performs infrared identification, thereby further reducing interference of the visible light signal received by the first infrared detection unit when the display panel identifies the received infrared light signal, improving the identification accuracy of the first infrared detection unit, further improving the light sensation identification accuracy of the display panel, and improving user experience. However, the present application is not limited thereto, as the case may be.
As shown in fig. 3, fig. 3 shows the wavelength distribution of the ultraviolet light, the visible light and the infrared light, and as can be seen from fig. 3, the wavelength of the infrared light is greater than 800nm, the wavelength of the visible light and the wavelength of the ultraviolet light are less than 800nm and thus, in one embodiment of the present application, the first light-shielding layer has a transmittance of not less than 90% for light having a wavelength of not less than 900nm, and a transmittance of not more than 5% for light having a wavelength of less than 900nm, the display panel is used for reducing the signal quantity of other optical signals except for the infrared optical signal in the optical signal received by the first infrared optical detection unit, reducing the identification precision when other optical signals except for the infrared optical signal in the optical signal received by the first infrared optical detection unit detect the infrared optical signal received by the first infrared optical detection unit, improving the light sensation identification precision of the display panel and improving the user experience. However, the present application is not limited thereto, as the case may be.
On the basis of any of the above embodiments, in an embodiment of the present application, the first light shielding layer may be a light shielding layer made of a material such as plastic (e.g., Polycarbonate, PC for short), acrylic (e.g., polymethyl Methacrylate, PMMA for short), silicon, germanium, or an infrared light transmitting film.
On the basis of any of the above embodiments, in an embodiment of the present application, as shown in fig. 4, the display area 100 of the display panel includes a first area 110 and a second area 120, where the first area 110 in the display area 100 of the display panel has a first light-transmitting hole 30, and fig. 5 shows a schematic cross-sectional view of the display panel shown in fig. 4 along the BB' direction, as shown in fig. 5, in this embodiment, the display panel further includes: the infrared light emitting unit 40 located in the first region 110 of the display panel is shown in fig. 4 and 5, and the infrared light emitted by the infrared light reflecting unit 40 is emitted out of the display panel through the first light-transmitting hole 30, reflected by a target object, and then emitted into the non-display region 200 of the display panel, and received by the first infrared light detecting unit 10 for light sensing identification. However, the present application is not limited thereto, and in other embodiments of the present application, the display panel may not include the infrared light emitting unit 40, and an external infrared light emitting unit is adopted, as the case may be.
On the basis of any of the above embodiments, in an embodiment of the present application, as shown in fig. 6, the first region 110 in the display area 100 of the display panel further has a second light-transmitting hole 50, and fig. 7 is a schematic cross-sectional view of the display panel shown in fig. 6 along a direction CC', as shown in fig. 7, in this embodiment, the display panel further includes: the image acquisition unit 60 located in the first region 110 in the display panel is shown in fig. 6 and 7, and the image acquisition unit 60 acquires the image outside the display panel through the second light transmission hole 50, so that the display panel is integrated with an image acquisition function, and the photographing requirement of a user is met. However, this is not limited in this application, and in other embodiments of the present application, the display panel may not include the image capturing unit 60, and the image capturing unit 60 is located outside the display panel, as shown in fig. 8.
In the above embodiment, the first infrared light detection unit 10 is disposed in the non-display area of the display panel, that is, the infrared light detection unit is disposed in the non-display area of the display panel, but the present application is not limited thereto, and in other embodiments of the present application, the infrared light detection unit may be disposed in the display area of the display panel to increase the number of infrared light detection units in the display panel, thereby improving the infrared detection accuracy of the display panel.
Optionally, in an embodiment of the present application, as shown in fig. 6 and 7, the display panel further includes:
the plurality of second infrared light detection units 70 located in the first area 110 of the display panel are located in the plane of the display panel, the plurality of second infrared light detection units 70 are located between the first light transmission hole 30 and the second light transmission hole 50, that is, the plurality of second infrared light detection units are located in the runway area 111 of the display panel, so that the distance between the infrared light detection units and the infrared light emission unit is reduced on the basis of increasing the number of infrared light detection units inside the display panel, and under the condition that the intensity of the optical signals emitted by the infrared light emission unit is the same, the transmission path length of the infrared light signals received by the second infrared light detection units is reduced, and the detection accuracy of the second infrared light detection units is improved.
On the basis of the above-mentioned embodiment, in an embodiment of the present application, as shown in fig. 9, the display panel further includes: the second light shielding layer 80 located in the first region 110 of the display panel is perpendicular to the direction of the plane where the display panel is located, the second light shielding layer 80 completely covers the plurality of second infrared light detection units 70, wherein the transmittance of the second light shielding layer 80 to infrared light is greater than that to visible light, so that the visible light signals received by the second infrared light detection units 70 when the display panel performs infrared identification are reduced, and then the interference of the visible light signals received by the second infrared light detection units 70 when the visible light signals identify the received infrared light signals is reduced, the identification accuracy of the second infrared light detection units 70 is improved, the light sensation identification accuracy of the display panel is finally improved, and the user experience is improved.
Optionally, in an embodiment of the present application, as shown in fig. 10, the second light shielding layer 80 may further cover a gap between adjacent second infrared light detection units 70, so as to reduce a probability that the amount of the visible light signal received by the second infrared light detection unit 70 is increased due to the gap between adjacent second infrared light detection units 70, so as to affect the recognition accuracy of the infrared light by the second infrared light detection unit 70.
The second light shielding layer located in the runway area of the display panel may be a whole layer or may be a plurality of block structures, which is not limited in this application and is determined according to whether the runway area of the display panel has a display function.
Specifically, in addition to the above embodiments, in one embodiment of the present application, the second infrared light detection unit is an infrared light detection sensor, but the present application does not limit this, and in other embodiments of the present application, the second infrared light detection unit may also be another element capable of detecting infrared light, as the case may be.
Optionally, on the basis of any of the foregoing embodiments, in an embodiment of the present application, the transmittance of the second light shielding layer to infrared light is not less than 90%, and the transmittance to visible light is not more than 5%, so as to further reduce the visible light signal received by the second infrared detection unit when the display panel performs infrared identification, thereby further reducing interference of the visible light signal received by the second infrared detection unit when the display panel identifies the received infrared light signal, improving the identification accuracy of the second infrared detection unit, further improving the light sensation identification accuracy of the display panel, and improving user experience. However, the present application is not limited thereto, as the case may be.
It should be noted that, because the wavelength of the infrared light is usually not less than 900nm, and the wavelengths of the visible light and the ultraviolet light are less than 900nm, in an embodiment of the present application, the transmittance of the second light shielding layer to the light having the wavelength of not less than 900nm is not less than 90%, and the transmittance to the light having the wavelength of less than 900nm is not more than 5%, so as to reduce the signal amount of the optical signals received by the second infrared detection unit except the infrared light signal, reduce the recognition accuracy of the optical signals received by the second infrared detection unit except the infrared light signal when the optical signals received by the second infrared detection unit detect the infrared light signal received by the second infrared detection unit, improve the light sensing recognition accuracy of the display panel, and improve user experience. However, the present application is not limited thereto, as the case may be.
On the basis of any of the above embodiments, in an embodiment of the present application, the second light shielding layer may be a light shielding layer made of a material such as plastic (e.g., Polycarbonate, PC for short), acrylic (e.g., polymethyl Methacrylate, PMMA for short), silicon, germanium, or an infrared light transmitting film.
Alternatively, on the basis of any of the above embodiments, in an embodiment of the present application, as shown in fig. 11 and 12, fig. 12 is a cross-sectional view of fig. 11 along a DD' direction, and the first infrared light detection unit 10 and the second infrared light detection unit 70 are located at the same layer to reduce the process complexity when the infrared light detection unit is disposed in the display panel, but the present application does not limit this, and is determined as the case may be.
On the basis of any of the above embodiments, in an embodiment of the present application, as shown in fig. 12, a maximum exit angle α of the light emitted by the infrared light emitting unit through the first light transmission hole is not less than 45 degrees, so as to ensure that the infrared light emitted by the infrared light emitting unit 40 disposed in the display panel can be received by the plurality of first infrared light detecting units 10 located in the non-display area of the display panel after being reflected by the target object.
On the basis of any of the above embodiments, in an embodiment of the present application, as shown in fig. 13 and 14, fig. 14 is a cross section of the display panel shown in fig. 13 taken along the EE' direction, and in this embodiment, the display panel further includes: and a plurality of display units 90 positioned in a second area 120 of the display area 100 within the display panel to ensure the display function of the display panel.
On the basis of the above-mentioned embodiment, in an embodiment of the present application, as shown in fig. 14, the display panel further includes: the third light shielding layer 11 located in the second area 120 of the display area in the display panel covers a gap between adjacent display units 90 in a direction perpendicular to the plane of the display panel, so as to avoid crosstalk between light rays of the adjacent display units 90.
On the basis of the above-mentioned embodiments, in an embodiment of the present application, as shown in fig. 13 and 14, the display panel further includes: and a plurality of third infrared light detecting units 12 positioned in the second region 120 of the display area 100 within the display panel to increase the area of the infrared light sensing region in the display panel.
Optionally, in an embodiment of the present application, as shown in fig. 14, the third light shielding layer 11 completely covers the plurality of third infrared detection units, and the transmittance of the third light shielding layer 11 to infrared light is greater than that of the visible light, so as to reduce the visible light signal received by the third infrared detection unit 12 when the display panel performs infrared identification, and further reduce the interference of the visible light signal received by the third infrared detection unit 12 when the display panel identifies the received infrared light signal, so as to improve the identification precision of the third infrared detection unit 12, and finally improve the light sensation identification precision of the display panel, and improve user experience.
Specifically, in addition to the above embodiments, in one embodiment of the present application, the third infrared light detection unit is an infrared light detection sensor, but the present application does not limit this, and in other embodiments of the present application, the third infrared light detection unit may also be another element capable of detecting infrared light, as the case may be.
Optionally, on the basis of any of the above embodiments, in an embodiment of the present application, the transmittance of the third light shielding layer to infrared light is not less than 90%, and the transmittance to visible light is not more than 5%, so as to further reduce the visible light signal received by the third infrared detection unit when the display panel performs infrared identification, so as to further reduce interference of the visible light signal received by the third infrared detection unit when the display panel identifies the received infrared light signal, improve the identification accuracy of the third infrared detection unit, further improve the light sensation identification accuracy of the display panel, and improve user experience. However, the present application is not limited thereto, as the case may be.
It should be noted that, because the wavelength of the infrared light is usually not less than 900nm, in an embodiment of the application, the transmittance of the third light shielding layer to the light with the wavelength not less than 900nm is not less than 90%, and the transmittance to the light with the wavelength less than 900nm is not more than 5%, so as to reduce the signal amount of the optical signals received by the third infrared light detection unit except the infrared light signal, reduce the recognition accuracy of the optical signals received by the third infrared light detection unit except the infrared light signal when the optical signals received by the third infrared light detection unit detect the infrared light signal received by the third infrared light detection unit, improve the light sensing recognition accuracy of the display panel, and improve user experience. However, the present application is not limited thereto, as the case may be.
On the basis of any of the above embodiments, in an embodiment of the present application, the third infrared light detection unit is located at the same layer as the first infrared light detection unit, so as to reduce the process complexity of providing the third infrared light detection unit in the display panel.
Optionally, on the basis of any of the above embodiments, in an embodiment of the present application, as shown in fig. 14, the third infrared light detection unit 12 is located on the same layer as the display unit 90, so as to add the infrared light detection unit to the display panel, without increasing the thickness of the display panel.
On the basis of any of the above embodiments, in an embodiment of the present application, the third light shielding layer may be a light shielding layer made of a material such as plastic (e.g., Polycarbonate, PC for short), acrylic (e.g., polymethyl Methacrylate, PMMA for short), silicon, germanium, or an infrared light transmitting film.
On the basis of any of the above embodiments, in an embodiment of the present application, the materials of the first light shielding layer, the second light shielding layer, and the third light shielding layer are the same, so that the first light shielding layer, the second light shielding layer, and the third light shielding layer are simultaneously fabricated in the same step, thereby simplifying the fabrication process of the display panel.
On the basis of any one of the above embodiments, in an embodiment of the present application, as shown in fig. 15, the display panel further includes: the color-resist layer 13 is located in the display area of the display panel, and in a direction perpendicular to the plane of the display panel, the color-resist layer 13 completely covers the plurality of display units 90, so that the light emitted by the plurality of display units 90 passes through the color-resist layer 13 and then exits the display panel. It should be noted that, in the embodiment of the present application, the color resistance layer includes color resistances of multiple colors, so that light emitted by the plurality of display units passes through the color resistance layer 13 to form light of multiple colors, and the display panel can display a color picture. Specifically, in an embodiment of the present application, as shown in fig. 15, the color-resist layer 13 includes a red color-resist unit R, a green color-resist unit G, and a blue color-resist unit B, but the present application does not limit this to this, as the case may be.
Optionally, on the basis of the above embodiment, in an embodiment of the present application, as shown in fig. 16, in a direction perpendicular to a plane of the display panel, the color-resist layer 13 is not overlapped with the plurality of third infrared light detection units 90, so that infrared light incident into the display panel can be directly received by the third infrared light detection units 90 without passing through the color-resist layer 13, thereby preventing the color-resist layer 13 from absorbing the infrared light incident into the display panel, which affects an infrared light sensing amount of the third infrared light detection units 90, and improving light sensing accuracy of the third infrared light detection units 90, thereby improving user experience.
On the basis of the above embodiments, in an embodiment of the present application, in a direction perpendicular to a plane of the array substrate, the color-resist layer only covers the display unit, as shown in fig. 17, and in this embodiment, the gap between the color-resist layer 13 and the adjacent display unit 90 does not overlap.
Optionally, on the basis of the above embodiment, in an embodiment of the present application, as shown in fig. 18, the display panel further includes: and the third light shielding layer 11 covers at least partial area of a gap between adjacent display units 90 in a direction perpendicular to the plane of the array substrate, so as to reduce the crosstalk phenomenon of light rays of the adjacent display units 90.
In addition to the above embodiments, in an embodiment of the present application, the transmittance of the third light shielding layer to infrared light is greater than that to visible light, in this embodiment, as shown in fig. 19, in a direction perpendicular to the plane of the array substrate, the third light shielding layer 11 extends to cover the plurality of third infrared light detection units 12, so that all the light received by the third infrared light detection units 12 passes through the third light shielding layer 11, and further the proportion of visible light signals in the light signals received by the third infrared light detection units 12 is reduced, so as to reduce the interference when the visible light signals received by the third infrared light detection units 12 identify the received infrared light signals, improve the identification accuracy of the third infrared light detection units 12, and finally improve the light sensation identification accuracy of the display panel, the user experience is improved.
On the basis of any one of the above embodiments, in an embodiment of the present application, as shown in fig. 20, the display panel further includes: the color resistance layer 13 is located and deviates from polaroid 14 on one side of the display unit 90, the polaroid 14 is located and deviates from protective cover plate 16 on one side of the color resistance layer 13 and a glue layer 15 for connecting the polaroid 14 and the protective cover plate 16, optionally, the protective cover plate is a glass cover plate, and the glue layer is an optical glue layer.
In addition, an embodiment of the present application also provides a display device, as shown in fig. 21, including: a display panel 300, wherein the display panel 300 is the display panel provided in any of the above embodiments. Optionally, in an embodiment of the present application, the display panel is a liquid crystal display panel, and in the embodiment of the present application, as shown in fig. 21, the display device further includes: the backlight module 400 is located at the non-display side of the display panel 300, and provides backlight for the display panel 300, but the application is not limited thereto, and in other embodiments of the application, the display panel may also be other types of display panels such as an OLED display panel, and the like, as the case may be.
To sum up, the display panel and the display device including the display panel provided by the embodiment of the present application, when the display panel is provided with the infrared light detection units such as the first infrared light detection unit, the second infrared light detection unit and/or the third infrared light detection unit, the display panel is further provided with the light shielding layers such as the first light shielding layer, the second light shielding layer and the third light shielding layer corresponding to the display panel, and the transmittance of the light shielding layers such as the first light shielding layer, the second light shielding layer and the third light shielding layer to infrared light is greater than that to visible light, so as to reduce the proportion of visible light signals in the optical signals received by the infrared light detection unit when performing infrared identification on the display panel, and further reduce the interference of the visible light signals received by the infrared light detection unit to the received infrared light signals when identifying the visible light signals, the recognition accuracy of the infrared light detection unit is improved, the light sensation recognition accuracy of the display panel is finally improved, and the user experience is improved.
In the description, each part is described in a progressive manner, each part is emphasized to be different from other parts, and the same and similar parts among the parts are referred to each other.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the application. Thus, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (14)
1. A display panel, comprising:
a plurality of first infrared light detection units located in a non-display area within the display panel;
a first light shielding layer located in a non-display area in the display panel, wherein the first light shielding layer completely covers the plurality of first infrared light detection units and gaps between adjacent first infrared light detection units in a direction perpendicular to a plane of the display panel;
the first shading layer has a transmittance to infrared light larger than that to visible light.
2. The display panel according to claim 1, wherein the first light-shielding layer has a transmittance of not less than 90% for light having a wavelength of not less than 900nm and a transmittance of not more than 5% for light having a wavelength of less than 900 nm.
3. The display panel according to claim 1, wherein a first region in the display area of the display panel has a first light-transmitting hole and a second light-transmitting hole;
the display panel further includes:
the infrared light emitting unit is positioned in a first area in the display panel, and infrared light emitted by the infrared light emitting unit is emitted out of the display panel through the first light transmitting hole;
and the image acquisition unit is positioned in a first area in the display panel and acquires images outside the display panel through the second light-transmitting hole.
4. The display panel according to claim 3, further comprising:
a plurality of second infrared light detection units located in a first region of the display panel, the plurality of second infrared light detection units being located between the first light-transmitting hole and the second light-transmitting hole in a plane in which the display panel is located;
a second light shielding layer located in a first region of the display panel, the second light shielding layer completely covering the plurality of second infrared light detection units in a direction perpendicular to a plane of the display panel;
the second light shielding layer has a transmittance for infrared light greater than that for visible light.
5. The display panel according to claim 3, wherein the maximum exit angle of the light emitted from the infrared light emitting unit through the first light transmitting hole is not less than 45 degrees.
6. The display panel according to any one of claims 1 to 5, further comprising:
a plurality of display units located in a second area of the display area within the display panel;
and the third shading layer is positioned in a second area in the display panel, and covers gaps between adjacent display units in the direction vertical to the plane of the display panel.
7. The display panel according to claim 6, further comprising:
and the third light shading layers are positioned in a second area in the display panel, and the transmittance of the third light shading layers to infrared light is greater than that to visible light.
8. The display panel according to claim 6, wherein the third infrared light detection unit is located at the same layer as the display unit.
9. The display panel according to claim 6, wherein the first light-shielding layer and the third light-shielding layer are made of the same material.
10. The display panel according to claim 6, further comprising:
and the color resistance layer is positioned in the display area of the display panel, and completely covers the plurality of display units in the direction vertical to the plane of the display panel.
11. The display panel according to claim 10, wherein the color resist layer does not overlap with the plurality of third infrared light detection units in a direction perpendicular to a plane of the display panel.
12. The display panel according to claim 11, wherein the third light shielding layer completely covers the plurality of third infrared light detecting units in a direction perpendicular to a plane of the array substrate.
13. The display panel according to claim 1, wherein the first light shielding layer is made of plastic, alexandrite, silicon or germanium.
14. A display device, comprising:
a display panel according to any one of claims 1 to 13;
the backlight module is positioned on the non-display side of the display area of the display panel.
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