CN112018157B - Display device - Google Patents

Display device Download PDF

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Publication number
CN112018157B
CN112018157B CN202010775877.3A CN202010775877A CN112018157B CN 112018157 B CN112018157 B CN 112018157B CN 202010775877 A CN202010775877 A CN 202010775877A CN 112018157 B CN112018157 B CN 112018157B
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Prior art keywords
display device
signal
layer
substrate
display
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CN112018157A (en
Inventor
孙卫婷
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Wuhan China Star Optoelectronics Technology Co Ltd
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Wuhan China Star Optoelectronics Technology Co Ltd
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    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/133509—Filters, e.g. light shielding masks
    • G02F1/133512—Light shielding layers, e.g. black matrix
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
    • H10K59/10—OLED displays
    • H10K59/12—Active-matrix OLED [AMOLED] displays
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
    • H10K59/60—OLEDs integrated with inorganic light-sensitive elements, e.g. with inorganic solar cells or inorganic photodiodes

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  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Optics & Photonics (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • General Physics & Mathematics (AREA)
  • Mathematical Physics (AREA)
  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Sustainable Development (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)

Abstract

The application provides a display device. The display device includes: the display device comprises a middle frame, a display panel and a functional component, wherein the display panel and the functional component are positioned in the middle frame. The functional assembly comprises a signal receiving component, the signal receiving component comprises a first receiving unit and a second receiving unit, the first target optical signal received by the first receiving unit is a visible light signal, and the second target optical signal received by the second receiving unit is a visible light signal and an infrared light signal. This application is through the setting of first receiving element and second receiving element, when display device carries out the distance detection, the deduction of the signal of telecommunication through the conversion of second target light signal to the signal of telecommunication of first target light signal conversion to eliminate the interference of visible light to the distance detection, improved display device to the sensitivity of distance detection, improved display device's product quality.

Description

Display device
Technical Field
The present application relates to the field of display, and in particular, to a display device.
Background
With the improvement of the requirements of people on the display device, how to improve the sensitivity of the functional components of the display device, for example, improving the sensitivity of the environmental sensor to adjust the brightness of the display in time and improving the sensitivity of the distance sensor to control the on/off of the display screen in time, is an important research direction.
The signal receiving unit of the distance sensor of the existing display device mainly receives an infrared light signal in the wavelength range, but the signal receiving unit still generates a certain response to the visible light, so that the sensitivity of the distance sensor is difficult to improve.
Therefore, a new display device is needed to solve the above technical problems.
Disclosure of Invention
The application provides a display device for solve current display device's distance sensor's signal receiving element and can produce the response to visible light, lead to distance sensor's sensitivity to be difficult to improve, influence display device's product quality's problem.
In order to solve the technical problem, the technical scheme provided by the application is as follows:
the application provides a display device, which comprises a middle frame, a display panel and a functional component, wherein the display panel and the functional component are positioned in the middle frame;
the functional assembly comprises a signal receiving component, the signal receiving component comprises a first receiving unit and a second receiving unit, the first target optical signal received by the first receiving unit is a visible light signal, and the second target optical signal received by the second receiving unit is a visible light signal and an infrared light signal.
In the display device provided by the application, the display device comprises a non-display area between the middle frame and the display area of the display panel, and the signal receiving component is positioned in the non-display area or the display area.
In the display device provided by the present application, the display area includes a light-shielding area located between adjacent sub-pixel areas, and the signal receiving member is located in the light-shielding area.
In the display device provided by the application, the display panel comprises an array substrate and a second substrate arranged corresponding to the array substrate;
the array substrate comprises a substrate and at least two thin film transistors positioned on the substrate, and the signal receiving component is positioned between two adjacent thin film transistors.
In the display device provided by the present application, the display panel further includes a display unit located on the array substrate, and the signal receiving member and the display unit are disposed on the same layer.
In the display device provided by the present application, the signal receiving member includes a cathode layer, a photosensitive device layer located at one side of the second substrate and an anode layer located at one side of the second substrate, where the cathode layer is close to the photosensitive device layer, and the signal receiving member is electrically connected to the source/drain of the thin film transistor.
In the display device provided by the application, the signal receiving component further comprises a first light shielding layer positioned on one side of the photosensitive device layer far away from the second substrate and/or a second light shielding layer arranged around the photosensitive device layer;
the first shading layer and the second shading layer are provided with first contact surfaces; or the like, or a combination thereof,
the second shading layer and the second substrate are provided with a second contact surface; or the like, or, alternatively,
the first light shielding layer and the second light shielding layer have the first contact surface, and the second light shielding layer and the second substrate have the second contact surface.
In the display device provided by the application, the display device further comprises a support located between the array substrate and the second substrate, and at least one support and the second light shielding layer are integrally arranged.
In the display device provided by the present application, the display panel further includes a black matrix located in the light shielding region, the black matrix includes at least one first opening, and the first opening is disposed corresponding to the signal receiving component.
In the display device provided by the application, the signal receiving component is arranged along the periphery of the display panel, and the signal receiving component comprises 2N first receiving units and 2M second receiving units;
The first receiving unit and/or the second receiving unit are/is symmetrically arranged relative to a first symmetrical axis of the display panel along a first direction or a second symmetrical axis along a second direction;
the first direction is parallel to the extending direction of the scanning lines of the display panel, the second direction is parallel to the extending direction of the data lines of the display panel, and N and/or M are positive integers.
Has the beneficial effects that: this application is through the setting of first receiving element and second receiving element, when display device carries out the distance detection, the deduction of the signal of telecommunication through the conversion of second target light signal to the signal of telecommunication of first target light signal conversion to eliminate the interference of visible light to the distance detection, improved display device to the sensitivity of distance detection, improved display device's product quality.
Drawings
The technical solution and other advantages of the present application will become apparent from the detailed description of the embodiments of the present application with reference to the accompanying drawings.
Fig. 1 is a first structural schematic diagram of a display device according to the present application.
Fig. 2 is a schematic diagram of a first receiving unit of the display device of the present application.
FIG. 3 is a diagram of a second receiving unit of the display device of the present application
Fig. 4 is a second structural diagram of the display device of the present application.
Fig. 5 is a schematic diagram of a third structure of the display device of the present application.
Fig. 6 is a schematic diagram of a fourth structure of the display device 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. It is to be understood that the embodiments described are only a few embodiments of the present application and not all 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 description of the present application, it is to be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present application and for simplicity in description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed in a particular orientation, and be operated in a particular manner, and are not to be construed as limiting the present application. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", may explicitly or implicitly include one or more of the described features. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.
In the description of the present application, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; may be mechanically, electrically or may be in communication with each other; they may be directly connected or indirectly connected through intervening media, or may be connected through the use of two elements or the interaction of two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as the case may be.
In this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact of the first and second features, or may comprise contact of the first and second features not directly but through another feature in between. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
The following disclosure provides many different embodiments or examples for implementing different features of the application. In order to simplify the disclosure of the present application, specific example components and arrangements are described below. Of course, they are merely examples and are not intended to limit the present application. Moreover, the present application may repeat reference numerals and/or letters in the various examples, such repetition is for the purpose of simplicity and clarity and does not in itself dictate a relationship between the various embodiments and/or configurations discussed. In addition, examples of various specific processes and materials are provided herein, but one of ordinary skill in the art may recognize applications of other processes and/or use of other materials.
The signal receiving unit of the distance sensor of the existing display device can respond to visible light, so that the sensitivity of the distance sensor is difficult to improve, and the product quality of the display device is influenced. Based on this, the present application proposes a display device.
Referring to fig. 1 to 4, the display device 100 includes a middle frame, and a display panel and functional elements disposed in the middle frame.
The functional component includes a signal receiving member 101, the signal receiving member 101 includes a first receiving unit 102 and a second receiving unit 103, the first target optical signal received by the first receiving unit 102 is a visible light signal, and the second target optical signal received by the second receiving unit 103 is a visible light signal and an infrared light signal.
In this embodiment, the wavelength of the optical signal received by the first receiving unit 102 is between a first minimum value and a first maximum value, where the first minimum value is 360 nm to 400 nm, and is preferably 380 nm; the first maximum value is between 760 nm and 800 nm, preferably 780 nm.
The wavelength of the optical signal received by the second receiving unit 103 is between a second minimum value and a second maximum value, where the second minimum value is 300 nm to 380 nm, and is preferably 350 nm; the second maximum is 1000 nm to 1200 nm, preferably 1100 nm.
In this embodiment, the first signal receiving unit may be a visible light-responsive diode, and the second receiving unit 103 may be a broadband light-responsive diode.
In this embodiment, the display device 100 includes a non-display region between the middle frame and the display region of the display panel, and the signal receiving member 101 is located in the non-display region or the display region.
In this embodiment, the display panel may be a liquid crystal display panel, an OLED display panel, or another type of display panel, and is not limited herein.
In this embodiment, when the display device 100 performs ambient light detection, the functional component is an ambient light sensing component; when the display device 100 performs distance detection, the functional element is a distance sensing element.
According to the display device 100, through the arrangement of the first receiving unit 102 and the second receiving unit 103, when the display device 100 performs distance detection, the electric signal converted by the second target optical signal is deducted from the electric signal converted by the first target optical signal, so that the interference of visible light on the distance detection is eliminated, the sensitivity of the display device 100 on the distance detection is improved, and the product quality of the display device 100 is improved.
The technical solution of the present application will now be described with reference to specific embodiments.
Example one
Referring to fig. 1 to 3, the display area includes a light-shielding area between adjacent sub-pixel areas, and the signal receiving member 101 is located in the light-shielding area.
When the signal receiving member 101 is located in the light shielding region, the area of the display panel where the sub-pixel display is not performed is utilized, and the space utilization of the display panel is improved.
Referring to fig. 1, the display panel includes an array substrate 104 and a second substrate 105 disposed corresponding to the array substrate 104.
The array substrate 104 includes a substrate and at least two thin film transistors on the substrate, and the signal receiving member 101 is located between two adjacent thin film transistors.
The signal receiving member 101 is located between adjacent thin film transistors.
In this embodiment, the first receiving unit 102 and the second receiving unit 103 may be separately disposed between adjacent thin film transistors.
In this embodiment, a plurality of the first receiving units 102 and/or the second receiving units 103 may be disposed between adjacent thin film transistors, for example, a plurality of the first units or the second units may be disposed between adjacent thin film transistors in series, and the first units and the second units may be disposed between adjacent thin film transistors in alternation.
In this embodiment, the display panel further includes a display unit located on the array substrate 104, and the signal receiving member 101 and the display unit are disposed on the same layer.
In this embodiment, the signal receiving member 101 includes a cathode layer, a photosensitive device layer on a side of the cathode layer close to the second substrate 105, and an anode layer on a side of the photosensitive device layer close to the second substrate 105, and the signal receiving member 101 is electrically connected to the source/drain of the thin film transistor.
In this embodiment, the signal receiving member 101 is electrically connected to the source/drain through the cathode layer.
Referring to fig. 2 and fig. 3, in the present embodiment, the cathode layer includes a first cathode 110 corresponding to the first receiving unit 102 and a second cathode 116 corresponding to the second receiving unit 103; the photosensitive device layer comprises a first sub photosensitive device layer 111 corresponding to the first receiving unit 102 and a second sub photosensitive device layer 117 corresponding to the second receiving unit 103; the anode layer includes a first anode 112 corresponding to the first receiving unit 102, and a second anode 118 corresponding to the second receiving unit 103.
In this embodiment, the first sub-photosensitive device layer 111 includes a first electron transport layer 113 on the first cathode 110, a first photosensitive material layer 114 on the first electron transport layer 113, and a first hole transport layer 115 on the first photosensitive material layer 114; the second sub-photosensitive device layer 117 includes a second electron transport layer 119 on the second cathode 116, a second photosensitive material layer 120 on the second electron transport layer 119, and a second hole transport layer 121 on the second photosensitive material layer 120.
In this embodiment, the material of the cathode layer may be a metal oxide, such as ITO, or a metal, such as at least one of Mo, Ni, Ti, and the like. The material of the anode layer can be transparent conductive material, such as ITO or poly 3, 4-ethylenedioxythiophene/polystyrene sulfonic acid or poly 3, 4-ethylenedioxythiophene/polystyrene sulfonate.
In this embodiment, the material of the first photosensitive material layer 114 may be one or more of amorphous silicon, photosensitive organic material, or other materials responsive to visible light.
The material of the second photosensitive material layer 120 may be one or more of polysilicon, microcrystalline silicon, or other materials responsive to visible light and infrared light.
In this embodiment, the material of the first electron transport layer 113 and the material of the second electron transport layer 119 may be at least one of an oxide of metallic zinc and an oxide of metallic titanium. The material of the first hole transport layer 115 and the material of the second hole transport layer 121 may be an oxide of metallic molybdenum.
In this embodiment, the display unit includes a third anode, a light emitting device layer on a side of the third anode close to the second substrate 105, and a third cathode on a side of the light emitting device layer close to the second substrate 105. The third anode may be disposed on the same layer as the cathode layer, the light emitting device layer may be disposed on the same layer as the light sensing device layer, and the third cathode may be disposed on the same layer as the anode layer.
In this embodiment, the signal receiving component 101 is disposed in the display area, which is beneficial to improving the screen ratio of the display device 100, and in addition, the signal receiving component 101 is disposed in the light shielding area between adjacent sub-pixels, which improves the space utilization of the display panel.
Example two
Referring to fig. 4, the present embodiment is the same as or similar to the first embodiment, except that:
the signal receiving member 101 further includes a first light shielding layer 106 on a side of the photosensitive device layer remote from the second substrate 105 and/or a second light shielding layer 107 provided around the photosensitive device layer.
The first light-shielding layer 106 and the second light-shielding layer 107 have a first contact surface.
Alternatively, the second light-shielding layer 107 and the second substrate 105 have a second contact surface.
Alternatively, the first light-shielding layer 106 and the second light-shielding layer 107 have the first contact surface, and the second light-shielding layer 107 and the second substrate 105 have the second contact surface.
In this embodiment, the first light shielding layer 106 may be located between the cathode layer and the photosensitive device layer, or located on a side of the cathode layer close to the substrate, and the first light shielding layer 106 may also be disposed on the same layer as the cathode layer.
The first light shielding layer 106 is disposed to block interference of light from the backlight module of the display device 100 or other light from the substrate-side of the first photosensitive material layer 114 and the second photosensitive material layer 120 on target light signal reception of the first receiving unit 102 and the second receiving unit 103, which is beneficial to improving sensitivity of the first receiving unit 102 and the second receiving unit 103 on target light signal reception.
In this embodiment, when the first receiving unit 102 and the second receiving unit 103 are separately disposed between the adjacent thin film transistors, the second light shielding layer 107 is located between the photosensitive device layer and the thin film transistors.
When the first receiving unit 102 and the second receiving unit 103 are alternately disposed between adjacent thin film transistors, the second light shielding layer 107 between the first receiving unit 102 and the second receiving unit 103 may be disposed in the same layer as the first photosensitive material layer 114 and the second photosensitive material layer 120, and is used to separate the first photosensitive material layer 114 from the second photosensitive material layer 120. In this case, the first cathode 110 and the second cathode 116, the first electron transport layer 113 and the second electron transport layer 119, the first hole transport layer 115 and the second hole transport layer 121, and the first anode 112 and the second anode 118 may be integrally provided.
By the arrangement of the second light shielding layer 107, the refracted light generated in the display panel by the non-target light, for example, the refracted light generated by the refraction of the light from the backlight module of the display device 100 in the display panel, or the refracted light generated by the refraction of the light from the infrared light emitting device of the display device 100 in the display panel, is blocked, so as to avoid the interference of the refracted light on the first receiving unit 102 and/or the second receiving unit 103, which causes the misjudgment of the intensity and/or distance of the ambient light by the display device 100, the misadjustment of the brightness of the display device 100, or the misinformation screen of the display device 100, and to improve the sensitivity of the first receiving unit 102 and the second receiving unit 103 to the reception of the target light signal.
In this embodiment, when the second light shielding layer 107 and the first light shielding layer 106 have the first contact surface, the non-target optical signal is prevented from reaching the first photosensitive material layer 114 and/or the second photosensitive material layer 120 from the gap between the first light shielding layer 106 and the second light shielding layer 107, which is beneficial to improving the shielding efficiency of the non-target optical signal and further improving the sensitivity of the first receiving unit 102 and the second receiving unit 103 for receiving the target optical signal.
In this embodiment, when the second light shielding layer 107 and the second substrate 105 have a second contact surface, non-target light is prevented from reaching the first photosensitive material layer 114 and/or the second photosensitive material layer 120 from between the array substrate 104 and the second substrate 105 through refraction; in addition, when the display panel is a liquid crystal display panel, the contact between the second light shielding layer 107 and the second substrate 105 blocks liquid crystal materials and alignment liquid materials of the display panel from entering a region between the array substrate 104 and the second substrate 105 corresponding to the signal receiving component 101, so that the reduction of target optical signals by the liquid crystal materials and the alignment liquid materials is avoided, and the sensitivity of the first receiving unit 102 and the second receiving unit 103 for receiving the target optical signals is improved.
When the second light shielding layer 107 and the second substrate 105 have a second contact surface, a side of the second light shielding layer 107 close to the signal receiving component 101 may have a light reflecting layer, and the light reflecting layer is configured to reflect the target optical signal irradiated to the second light shielding layer 107 onto the signal receiving component 101, which is beneficial to increase the amount of the target optical signal received by the signal receiving component 101 and improve the sensitivity of the signal receiving component 101.
In this embodiment, the display device 100 further includes a support located between the array substrate 104 and the second substrate 105, and at least one of the supports is integrally disposed with the second light shielding layer 107.
The support and the second light shielding layer 107 are integrally arranged, so that the process of the display device 100 is simplified, and the production efficiency of the display device 100 is improved.
In this embodiment, the display device 100 further includes an infrared light source located outside the display panel, a third light shielding layer may be further disposed between the infrared light source and the display panel, and the third light shielding layer is configured to block light from the infrared light source from reaching the second receiving unit 103 after passing through refraction of each film layer in the display panel, and interfere with distance detection of the functional component, thereby affecting accuracy of distance determination by the functional component.
In this embodiment, the arrangement of the first light shielding layer 106 and/or the second light shielding layer 107 is beneficial to improve the sensitivity of the first receiving unit 102 and the second receiving unit 103 for receiving the target light signal, and avoid the interference of the backlight or other interference light from the display device 100 to the functional components, which affects the accuracy of the functional components, thereby improving the product quality of the display device 100.
EXAMPLE III
Referring to fig. 5 and fig. 6, the present embodiment is the same as or similar to the above embodiments, except that:
the display panel further includes a black matrix located in the light shielding region, the black matrix includes at least one first opening 108, and the first opening 108 is disposed corresponding to the signal receiving member 101.
In this embodiment, the black matrix may be located on a side of the array substrate 104 close to the second substrate 105, and the black matrix may also be located on a side of the second substrate 105 close to the array substrate 104.
In this embodiment, an orthogonal projection of the signal receiving member 101 on the black matrix may be located within the first opening 108. Alternatively, an orthographic projection of the first opening 108 on the array substrate 104 may be located within the signal receiving member 101.
When the orthographic projection of the first opening 108 on the array substrate 104 is located within the signal receiving member 101, the second light shielding layer 107 and the black matrix may have a third contact surface. The function of the third contact surface is the same as or similar to that of the second contact surface, and is not described herein again.
In this embodiment, the display panel further includes a color film layer located between the array substrate 104 and the second substrate 105, the color film layer at least includes a red color resistor, a green color resistor, and a blue color resistor, the color film layer includes at least one second opening, and the second opening is disposed corresponding to the signal receiving member 101.
In this embodiment, the display device 100 further includes a signal enhancement member 109 disposed corresponding to the signal receiving member 101.
The signal enhancement member 109 is located on a side of the signal receiving member 101 close to the second substrate 105.
In this embodiment, the signal enhancement member 109 may be located on a side of the signal enhancement member 109 close to the second substrate 105, or may be located on a side of the second substrate 105 close to the signal receiving member 101.
When the orthographic projection of the signal receiving means 101 on the black matrix is located within the first opening 108, the signal enhancing means 109 may be located within the first opening 108. When the signal enhancement member 109 is located in the first opening 108, the empty space of the display panel itself is utilized, which is beneficial to improving the space utilization rate of the display panel.
In this embodiment, the signal enhancement member 109 may include a convex lens, a collimating lens, or other structures capable of enhancing the target signal reaching the signal receiving member 101, and is not limited in particular.
The present embodiment is advantageous to enhance the target optical signal received by the signal receiving member 101 by the arrangement of the signal enhancing member 109, so as to improve the sensitivity of the signal receiving member 101.
The present embodiment increases the total amount of the target optical signal that passes through the second substrate 105 and reaches the signal receiving member 101 through the first opening 108, which is beneficial to improving the sensitivity of the signal receiving member 101.
In the above embodiments, the signal receiving component 101 may be disposed along the periphery of the display panel, and the signal receiving component 101 includes 2N first receiving units 102 and/or 2M second receiving units 103. The first receiving unit 102 and/or the second receiving unit 103 are symmetrically disposed with respect to a first axis of symmetry of the display panel in a first direction or a second axis of symmetry in a second direction. The first direction is parallel to the extending direction of the scanning lines of the display panel, the second direction is parallel to the extending direction of the data lines of the display panel, and N and/or M are positive integers. By the symmetrical arrangement of the plurality of first receiving units 102 and/or the plurality of second receiving units 103, the collection range of the target optical signal is increased, the sensitivity and accuracy of the functional components are improved, and the product quality of the display device 100 is improved.
The working steps of the functional components are described below, taking distance detection as an example:
s1, the first receiving unit 102 obtains the first target optical signal, and the second receiving unit 103 obtains the second target optical signal.
In this embodiment, the first target optical signal is a visible light signal, and the second target optical signal is a visible light signal and an infrared light signal. Wherein the wavelength range of the first target optical signal may be 380 nm to 780 nm. The wavelength range of the second target optical signal may be 300 nanometers to 1100 nanometers.
And S2, acquiring a first value according to the first target optical signal and the second target optical signal.
In this embodiment, step S2 includes:
and S21, acquiring a first target electrical signal and a second target electrical signal according to the first target optical signal and the second target optical signal.
And S22, acquiring a third target electric signal according to the first target electric signal and the second target electric signal.
In this embodiment, step S22 includes:
s22a, subtracting the portion of the second target electrical signal overlapping the first target electrical signal to obtain the third target electrical signal.
And S23, acquiring a first value according to the third target electric signal.
In this embodiment, step S23 includes:
and S23a, performing analog-to-digital conversion on the third target electric signal to obtain the first numerical value.
S3, if the first value is greater than a first threshold, lighting the display area of the display device 100.
S4, if the first value is less than or equal to the first threshold, closing the display area of the display device 100.
The application provides a display device. The display device includes: the display device comprises a middle frame, a display panel and a functional component, wherein the display panel and the functional component are positioned in the middle frame. The functional assembly comprises a signal receiving component, the signal receiving component comprises a first receiving unit and a second receiving unit, the first target optical signal received by the first receiving unit is a visible light signal, and the second target optical signal received by the second receiving unit is a visible light signal and an infrared light signal. This application is through the setting of first receiving element and second receiving element, when display device carries out the distance detection, the deduction of the signal of telecommunication through the conversion of second target light signal to the signal of telecommunication of first target light signal conversion to eliminate the interference of visible light to the distance detection, improved display device to the sensitivity of distance detection, improved display device's product quality.
In the foregoing embodiments, the descriptions of the respective embodiments have respective emphasis, and for parts that are not described in detail in a certain embodiment, reference may be made to related descriptions of other embodiments.
The foregoing detailed description is directed to a display device provided in an embodiment of the present application, and specific examples are applied herein to explain the principles and embodiments of the present application, and the description of the foregoing embodiments is only used to help understanding the technical solutions and their core ideas of the present application; those of ordinary skill in the art will understand that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications or substitutions do not depart from the spirit and scope of the present disclosure as defined by the appended claims.

Claims (10)

1. A display device is characterized by comprising a middle frame, a display panel and a functional component, wherein the display panel and the functional component are positioned in the middle frame;
the functional component comprises a signal receiving component, the signal receiving component comprises a first receiving unit and a second receiving unit, a first target optical signal received by the first receiving unit is a visible light signal, a second target optical signal received by the second receiving unit is a visible light signal and an infrared light signal, and when the display device performs distance detection, an electric signal converted from the first target optical signal is subtracted from an electric signal converted from the second target optical signal.
2. The display device according to claim 1, wherein the display device includes a non-display region between the middle frame and a display region of the display panel, and the signal receiving member is located in the non-display region or the display region.
3. The display device according to claim 2, wherein the display region includes a light-shielding region between adjacent sub-pixel regions, the signal receiving member being located in the light-shielding region.
4. The display device according to claim 3, wherein the display panel includes an array substrate and a second substrate provided corresponding to the array substrate;
the array substrate comprises a substrate and at least two thin film transistors positioned on the substrate, and the signal receiving component is positioned between two adjacent thin film transistors.
5. The display device according to claim 4, wherein the display panel further comprises a display unit on the array substrate, and the signal receiving member is disposed on the same layer as the display unit.
6. The display device according to claim 4, wherein the signal receiving member includes a cathode layer, a photosensitive device layer on a side of the cathode layer adjacent to the second substrate, and an anode layer on a side of the photosensitive device layer adjacent to the second substrate, the signal receiving member being electrically connected to source/drain electrodes of the thin film transistors.
7. The display device according to claim 6, wherein the signal receiving member further comprises a first light shielding layer on a side of the photosensitive device layer remote from the second substrate and/or a second light shielding layer provided around the photosensitive device layer;
the first shading layer and the second shading layer are provided with first contact surfaces; or the like, or, alternatively,
the second shading layer and the second substrate are provided with a second contact surface; or the like, or, alternatively,
the first light shielding layer and the second light shielding layer have the first contact surface, and the second light shielding layer and the second substrate have the second contact surface.
8. The display device according to claim 7, further comprising a support between the array substrate and the second substrate, at least one of the supports being provided integrally with the second light-shielding layer.
9. The display device according to claim 3, wherein the display panel further comprises a black matrix disposed in the light shielding region, the black matrix comprising at least a first opening, the first opening being disposed corresponding to the signal receiving member.
10. The display device according to claim 1, wherein the signal receiving means is provided along a periphery of the display panel, the signal receiving means including 2N of the first receiving units and/or 2M of the second receiving units;
The first receiving unit and/or the second receiving unit are/is symmetrically arranged relative to a first symmetrical axis of the display panel along a first direction or a second symmetrical axis along a second direction;
the first direction is parallel to the extending direction of the scanning lines of the display panel, the second direction is parallel to the extending direction of the data lines of the display panel, and N and/or M are positive integers.
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