CN109375402B - Display screen assembly and electronic equipment - Google Patents

Display screen assembly and electronic equipment Download PDF

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Publication number
CN109375402B
CN109375402B CN201811296974.3A CN201811296974A CN109375402B CN 109375402 B CN109375402 B CN 109375402B CN 201811296974 A CN201811296974 A CN 201811296974A CN 109375402 B CN109375402 B CN 109375402B
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China
Prior art keywords
light
display panel
display
screen assembly
display screen
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CN201811296974.3A
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Chinese (zh)
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CN109375402A (en
Inventor
杨乐
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Guangdong Oppo Mobile Telecommunications Corp Ltd
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Guangdong Oppo Mobile Telecommunications Corp Ltd
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Priority to CN201811296974.3A priority Critical patent/CN109375402B/en
Publication of CN109375402A publication Critical patent/CN109375402A/en
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    • 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
    • G02F1/133528—Polarisers
    • 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
    • G02F1/1336—Illuminating devices
    • G02F1/133602—Direct backlight
    • 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
    • G02F1/1336—Illuminating devices
    • G02F1/133602—Direct backlight
    • G02F1/133603—Direct backlight with LEDs
    • 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
    • G02F1/1336—Illuminating devices
    • G02F1/133602—Direct backlight
    • G02F1/133605—Direct backlight including specially adapted reflectors
    • 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
    • G02F1/1336—Illuminating devices
    • G02F1/133602—Direct backlight
    • G02F1/133606—Direct backlight including a specially adapted diffusing, scattering or light controlling members
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
    • G09G3/3406—Control of illumination source
    • 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
    • G02F1/1336—Illuminating devices
    • G02F1/133602—Direct backlight
    • G02F1/133606—Direct backlight including a specially adapted diffusing, scattering or light controlling members
    • G02F1/133607—Direct backlight including a specially adapted diffusing, scattering or light controlling members the light controlling member including light directing or refracting elements, e.g. prisms or lenses
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2320/00—Control of display operating conditions
    • G09G2320/06—Adjustment of display parameters
    • G09G2320/0626—Adjustment of display parameters for control of overall brightness

Abstract

The application discloses display screen assembly includes: a display panel; the backlight module is positioned on one side of the display panel and comprises an optical membrane, a substrate and a plurality of light-emitting monomers arranged on the substrate at intervals, the optical membrane is positioned between the substrate and the display panel and covers the light-emitting monomers, and light rays emitted by the light-emitting monomers penetrate through the optical membrane to provide backlight light rays for the display panel; the display screen assembly comprises one or more photosensitive elements, the photosensitive elements are fixedly arranged on the optical film, the orthographic projection of the photosensitive elements on the substrate is positioned in a gap formed by the plurality of luminous monomers, the photosensitive elements are coupled with the display panel or the backlight module, and the photosensitive elements are used for sensing the intensity of ambient light so as to trigger the display screen assembly to adjust the display brightness according to the intensity of the ambient light. The application also discloses an electronic device.

Description

Display screen assembly and electronic equipment
Technical Field
The application relates to the technical field of electronic devices, in particular to a display screen assembly and electronic equipment.
Background
The ambient light sensing device of the traditional electronic equipment occupies the space of the non-display area of the electronic equipment, so that the screen occupation ratio of the electronic equipment is limited. With the increasing demand of users for the screen space ratio of electronic devices, how to reduce the area of the non-display area occupied by the ambient light sensing device to increase the screen space ratio of the electronic devices becomes a problem to be solved.
Disclosure of Invention
The application provides a display screen assembly, includes:
a display panel;
the backlight module is positioned on one side of the display panel and comprises an optical membrane, a substrate and a plurality of light-emitting monomers arranged on the substrate at intervals, the optical membrane is positioned between the substrate and the display panel and covers the light-emitting monomers, and light rays emitted by the light-emitting monomers penetrate through the optical membrane to provide backlight light rays for the display panel;
the display screen assembly comprises one or more photosensitive elements, the photosensitive elements are fixedly arranged on the optical film, the orthographic projection of the photosensitive elements on the substrate is positioned in a gap formed by the plurality of luminous monomers, the photosensitive elements are coupled with the display panel or the backlight module, and the photosensitive elements are used for sensing the intensity of ambient light so as to trigger the display screen assembly to adjust the display brightness according to the intensity of the ambient light.
The application still provides an electronic equipment, electronic equipment includes controller and display screen subassembly, the controller electricity is connected photosensitive element reaches luminous monomer, the total light intensity that photosensitive element sensed includes ambient light intensity and light intensity in a poor light, the controller is used for acquireing total light intensity reaches light intensity in a poor light, and according to total light intensity with light intensity in a poor light calculates ambient light intensity, ambient light intensity equals total light intensity with the difference between light intensity in a poor light.
The beneficial effect of this application is as follows: photosensitive element is used for the intensity of sensing environment light, thereby adjust the demonstration luminance of display screen subassembly according to the intensity of environment light, in order to reduce the energy consumption and protect user's eyes, set up photosensitive element on the optical film, and photosensitive element is located between the adjacent luminous monomer at the orthographic projection of base plate, not only do not influence the backlight, photosensitive element can also normally work, photosensitive element need not additionally to occupy the front space of display screen subassembly, thereby the screen that has improved the electronic equipment of display screen subassembly and applied display screen subassembly accounts for the ratio.
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, and it is obvious that the drawings in the following description are only some embodiments of the present application, and other obvious modifications can be obtained by those skilled in the art without inventive efforts.
Fig. 1 is a schematic view of an electronic device provided in an embodiment of the present application.
Fig. 2 is a schematic view of a stacked structure of a display panel assembly according to an embodiment of the present disclosure.
Fig. 3 is a schematic view of a stacked structure of a display panel.
FIG. 4 is a schematic diagram of a stacked structure of an embodiment of a backlight module.
FIG. 5 is a schematic diagram of a stacked structure of another embodiment of a backlight module.
Fig. 6 is a front view of the backlight module.
Fig. 7 is a schematic diagram of a stacked structure of an implementation manner of a backlight module of a display panel assembly according to a second embodiment of the present application.
FIG. 8 is a schematic diagram of a stacked structure of another embodiment of a backlight module.
Fig. 9 is a front view of a backlight module of a display panel assembly according to a third embodiment of the present application.
FIG. 10 is a schematic front view of a display screen assembly
FIG. 11 is a front view of another embodiment of a backlight module.
FIG. 12 is a front view of another embodiment of a backlight module.
Fig. 13 is a schematic view of a stacked structure of an implementation manner of a display panel assembly according to the fourth embodiment of the present application.
Fig. 14 is a schematic view of a stacked structure of another implementation of a display panel assembly according to the fourth embodiment of the present application.
Fig. 15 is a schematic view of a stacked structure of an implementation manner of a display panel assembly according to a fifth embodiment of the present application.
Fig. 16 is a schematic view of a stacked structure of another implementation of a display panel assembly according to example five of the present application.
Fig. 17 is a schematic view of the distribution of the photosensitive elements and the light emitting units.
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.
The display screen assembly provided by the application is applied to electronic equipment, and specifically, the electronic equipment can be any equipment with communication and storage functions, for example: tablet computers, mobile phones, electronic readers, remote controllers, Personal Computers (PCs), notebook computers, vehicle-mounted devices, network televisions, wearable devices, and the like.
Referring to fig. 1, fig. 1 is a schematic structural diagram of an electronic device 1000 according to the present disclosure. In this embodiment, the electronic device 1000 includes the display screen assembly 100 and the controller 200, the controller 200 is electrically connected to the display screen assembly 100, and the controller 200 is configured to control the display brightness and the display content of the image displayed by the display screen assembly 100. It should be noted that the electrical connection in the present invention includes a power supply connection and a signal connection. The electronic device 1000 further includes a housing 300, the display screen assembly 100 is mounted on the housing 300, and the controller 200 is accommodated in the housing 300. In one embodiment, the controller 200 is a Printed Circuit Board (PCB), and the controller 200 and the display screen assembly 100 are electrically connected through a Flexible Printed Circuit (FPC) or a conductive wire.
Referring to fig. 2, fig. 2 is a schematic diagram illustrating a stacked structure of a display panel assembly 100 according to an embodiment of the present disclosure. In this embodiment, the display panel assembly 100 includes a display panel 20, a backlight module 10 and a photosensitive element 30.
Referring to fig. 3, fig. 3 is a schematic diagram illustrating a stacked structure of the display panel 20. In this embodiment, the Display panel 20 is a Liquid Crystal Display panel 20 (TFT-LCD), and specifically, the Display panel 20 includes an array substrate 1222, a color Film substrate 1224, and a Liquid Crystal layer 26 located between the array substrate 1222 and the color Film substrate 1224, which are oppositely disposed. The array substrate 1222 is provided with a Thin Film Transistor (TFT), a data line, a scan line and a pixel electrode, the color Film substrate 1224 is provided with a common electrode, the scan line is used for transmitting a scan signal so as to control the on-off state of the TFT, the data line is used for transmitting a data signal, when the TFT is turned on, the data line transmits the data signal to the pixel electrode so as to control a bias voltage applied to the pixel electrode, and a voltage difference between the pixel electrode and the common electrode is controlled so as to control a deflection angle of liquid crystal molecules of the liquid crystal layer 26. In this embodiment, the first polarizer 282 is disposed on a side of the color film substrate 1224 away from the array substrate 1222, the second polarizer 284 is disposed on a side of the array substrate 1222 away from the color film substrate 1224, and polarization directions of the first polarizer 282 and the second polarizer 284 are perpendicular to each other. The backlight light of the second polarization direction enters the liquid crystal layer 26 through the second polarizing plate 284, is affected by the deflected liquid crystal molecules, is converted into the first polarization direction, and passes through the first polarizing plate 282, so that the display panel 20 displays an image.
Referring to fig. 2, the display panel 20 includes a display surface 20a and a non-display surface 20b disposed opposite to each other, the non-display surface 20b faces the backlight module 10, and the display surface 20a is used for facing a user using the electronic device to display an image. In this embodiment, the backlight module 10 is used for emitting a backlight source, the backlight module 10 is located at one side of the display panel 20, specifically, the backlight module 10 is located at one side of the non-display surface 20b of the display panel 20, the backlight module 10 emits the backlight source to the display panel 20, and the backlight source forms an image display on the display surface 20a of the display panel 20 after passing through the display panel 20. In one embodiment, the backlight source emitted by the backlight module 10 may be white or colored.
Referring to fig. 4 and 5, fig. 4 and 5 are schematic views of a stacked structure of the display panel assembly 100. In this embodiment, the backlight module 10 is a direct type backlight module. Specifically, the backlight module 10 includes a substrate 12 and a plurality of light-emitting units 14, wherein the light-emitting units 14 are disposed on the substrate 12, the light-emitting units 14 themselves can emit light to provide backlight light, the substrate 12 is disposed on a non-display surface 20b side of the display panel 20, and the light-emitting units 14 emit light toward the display panel 20. In one embodiment, the Light-Emitting unit 14 is a Light-Emitting Diode (LED), and specifically, the Light-Emitting unit 14 is a Light-Emitting Diode (LED)The Mini light emitting diode (Mini LED) has a size of about 100 μm, i.e. the vertical projection area of the single Mini LED on the substrate 12 is not more than 104 μm2. The mini light-emitting diode has small size and small space, and the brightness adjustment fineness of the backlight light of the mini light-emitting diode is high. In this embodiment, the light emitted from the light emitting unit 14 is used to form backlight light to enter the display panel 20. In one embodiment, the substrate 12 may be a printed circuit board or a flexible circuit board, and the light emitting unit 14 is packaged on the substrate 12 and electrically connected to a power source through the substrate 12.
Referring to fig. 4 and fig. 5, in the present embodiment, the backlight module 10 further includes an optical film 450 and a photosensitive element 30, the optical film 450 is located between the light-emitting units 14 and the display panel 20, and the backlight light provided by the light-emitting units 14 passes through the optical film 450 and propagates toward the display panel 20. In this embodiment, the photosensitive element 30 is fixedly disposed on the optical film 450, and specifically, the photosensitive element 30 can be manufactured by adhering or the like or fixed on the surface of the optical film 450. In one embodiment, as shown in fig. 4, the photosensitive element 30 is disposed on a side of the optical film 450 facing the substrate 12, and in another embodiment, as shown in fig. 4, the photosensitive element 30 is disposed on a side of the optical film 450 facing away from the substrate 12.
In this embodiment, the light sensing element 30 is located between the adjacent light emitting units 14 in the orthographic projection of the substrate 12, specifically, the light sensing element 30 may be a wafer particle having a light sensing function, and the light sensing element 30 can sense the intensity of light and output different electrical signals according to the intensity of light. In one embodiment, an orthogonal projection of one photosensitive element 30 may be correspondingly accommodated between every two adjacent light-emitting units 14, and in other embodiments, an orthogonal projection of a plurality of photosensitive elements 30 may be correspondingly accommodated between every two adjacent light-emitting units 14, or every two photosensitive elements 30 are separated by an orthogonal projection of a plurality of photosensitive elements 30. In this embodiment, the ambient light from the outside is received by the light sensing element 30 after passing through the display panel 20, and the light sensing element 30 outputs different electrical signals according to the intensity of the received ambient light.
In one embodiment, the light sensing element 30 is coupled to the display panel 20, and the light sensing element 30 is used for sensing the intensity of the ambient light to trigger the display panel 20 to adjust the display brightness according to the intensity of the ambient light. The light sensing element 30 is electrically connected to a controller 200 of the electronic device, the controller 200 is further electrically connected to the display panel 20, the controller 200 controls the intensity of the transmitted backlight light of the display panel 20 according to the electrical signal transmitted by the light sensing element 30, and specifically, the controller 200 controls the deflection angle of the liquid crystal molecules in the display panel 20, so as to control the amount of the backlight light passing through the display panel 20 and control the display brightness of the display panel 20. For example, when the light sensing element 30 senses that the ambient light intensity is large, the controller 200 controls the display panel 20 to increase the transmittance, thereby improving the display brightness of the display screen assembly 100, so that the user can clearly observe the image content displayed by the display panel 20, when the light sensing element 30 senses that the ambient light intensity is small, the controller 200 controls the display panel 20 to reduce the transmittance, thereby reducing the display brightness of the display screen assembly 100, so as to prevent the user from being damaged due to the large display brightness, adjust the display brightness of the display panel 20 to a proper range in real time according to the ambient light intensity, which can also reduce the energy consumption, and improve the endurance of the electronic device.
In another embodiment, the photosensitive element 30 is coupled to the backlight module 10, and the photosensitive element 30 is used for sensing the intensity of the ambient light to trigger the backlight module 10 to adjust the intensity of the backlight light according to the intensity of the ambient light. Specifically, the light sensing element 30 is electrically connected to a controller 200 of the electronic device, the controller 200 is further electrically connected to the backlight module 10, the controller 200 controls the backlight intensity provided by the backlight module 10 according to the electrical signal transmitted by the light sensing element 30, for example, when the light sensing element 30 senses that the ambient light intensity is large, the controller 200 controls the backlight module 10 to provide a large backlight intensity, so that a user can clearly observe the image content displayed by the display panel 20, when the light sensing element 30 senses that the ambient light intensity is small, the controller 200 controls the backlight module 10 to provide a small backlight intensity, so as to prevent the user from being damaged by the large display brightness, the backlight module 10 is adjusted in real time according to the ambient light intensity to provide backlight light within a proper intensity range, and the controller can also reduce energy consumption and improve endurance of the electronic device.
Referring to fig. 4, in the present embodiment, the substrate 12 is further provided with a reflective surface 12a, and the light-emitting unit 14 is located on the reflective surface, in one embodiment, the reflective surface 12a is a reflective layer coated on the surface of the substrate 12, and the reflective surface 12a is used for reflecting the light emitted by the light-emitting unit 14, so that part of the light emitted by the light-emitting unit 14 that is not directly emitted to the display panel 20 is emitted to the display panel 20 after being reflected, and thus the light emitted by the light-emitting unit 14 is converted into a backlight source emitted to the display panel 20 as much as possible, and the light source utilization rate of the light-emitting unit 14 is improved.
Referring to fig. 6, fig. 6 is a schematic surface view of the backlight module 10. In this embodiment, the orthographic projection of the photosensitive element 30 on the reflection surface forms a first projection 32, and specifically, the first projection 32 is an area occupied by the orthographic projection of the photosensitive element 30 on the reflection surface. The first projections 32 and the light-emitting units 14 are alternately arranged, and the substrate 12 is full of the first projections 32 and the light-emitting units 14, and correspondingly, the photosensitive elements 30 are disposed below the display area of the display screen assembly 100, which can also be understood that the display screen assembly 100 has a photosensitive function on the whole screen. The greater the number of the light sensing elements 30, the more accurate the sensing effect of the ambient light, and the more accurate the adjustment of the brightness of the display screen assembly 100.
The photosensitive element 30 is used for sensing the intensity of the ambient light, so as to adjust the display brightness of the display screen assembly 100 according to the intensity of the ambient light, so as to reduce energy consumption and protect eyes of a user, the photosensitive element 30 is disposed on the optical film 450, and the orthographic projection of the photosensitive element 30 on the substrate 12 is located between the adjacent light-emitting monomers 14, which does not affect the backlight source, the photosensitive element 30 can also work normally, the photosensitive element 30 does not need to occupy the front space of the display screen assembly 100 additionally, so that the screen occupation ratio of the display screen assembly 100 and the electronic device applying the display screen assembly 100 is improved.
Referring to fig. 7 and 8, a display panel assembly according to a second embodiment of the present disclosure is different from the first embodiment in that the optical film 450 has an opening, and the photosensitive element 30 is located in the opening. Specifically, the optical film 450 includes a prism film 50 and a diffusion sheet 40 stacked together, the diffusion sheet 40 is located between the prism film 50 and the substrate 12, and the backlight light provided by the light-emitting units 14 passes through the diffusion sheet 40 and the prism film 50 to be transmitted to the display panel 20, and in one embodiment, the diffusion sheet 40 is located between the prism film 50 and the substrate 12, and the backlight light provided by the light-emitting units 14 passes through the diffusion sheet 40 and the prism film 50 in sequence. Specifically, the backlight light provided by the backlight module 10 enters the display panel 20 after passing through the diffusion sheet 40, and the diffusion sheet 40 is used for homogenizing the backlight light to obtain a backlight source with uniformly distributed brightness, thereby improving the display effect of the display panel 20. The prism film 50 is a transparent plastic film having a thickness of 50 to 300 μm and is uniformly and neatly covered with a prism structure on the upper surface of the film. The prism film 50, which is disposed between the diffuser 40 and the display panel 20 and functions to improve the angular distribution of light, concentrates the light emitted from the diffuser 40 uniformly diverging to various angles to an axial angle, i.e., a front view angle, and improves the on-axis brightness without increasing the total flux of the emitted light.
In this embodiment, at least one of the diffusion sheet 40 and the prism film 50 is provided with openings, the photosensitive elements 30 are located in the openings, the orthographic projection of the photosensitive elements 30 on the substrate 12 is located between the adjacent light-emitting units 14, the photosensitive elements 30 are coupled to the display panel 20, the photosensitive elements 30 are used for sensing ambient light, and the display brightness of the display screen assembly 100 is adjusted according to the ambient light. Specifically, the photosensitive element 30 may be a wafer particle having a photosensitive function, and the photosensitive element 30 may sense the intensity of light and output different electrical signals according to the intensity of light. In one embodiment, an orthogonal projection of one photosensitive element 30 may be correspondingly accommodated between every two adjacent light-emitting units 14, and in other embodiments, an orthogonal projection of a plurality of photosensitive elements 30 may be correspondingly accommodated between every two adjacent light-emitting units 14, or every two photosensitive elements 30 are separated by an orthogonal projection of a plurality of photosensitive elements 30. In this embodiment, the ambient light from the outside is received by the light sensing element 30 after passing through the display panel 20, and the light sensing element 30 outputs different electrical signals according to the intensity of the received ambient light. In one embodiment, the light sensing element 30 is electrically connected to a controller 200 of the electronic device, the controller 200 is further electrically connected to the display panel 20, the controller 200 controls the display brightness of the display panel assembly 100 according to an electrical signal transmitted by the light sensing element 30, for example, when the light sensing element 30 senses that the intensity of the ambient light is large, the controller 200 controls the display panel assembly 100 to display at a large display brightness, so that the user can clearly observe the image content displayed by the display panel 20, when the light sensing element 30 senses that the intensity of the ambient light is small, the controller 200 controls the display panel assembly 100 to display at a small display brightness, so as to prevent the user from being damaged due to the large display brightness, adjust the display brightness of the display panel assembly 100 to a suitable range in real time according to the intensity of the ambient light, and further play a role in reducing energy consumption and improving endurance of the electronic device.
In one embodiment, the controller 200 controls the deflection angle of the liquid crystal molecules, thereby controlling the amount of backlight light passing through the display panel 20 to control the display brightness of the display panel assembly 100; in another embodiment, the controller 200 is electrically connected to the backlight module 10, and the controller 200 controls the brightness of the backlight source provided by the backlight module 10, so as to control the display brightness of the display panel assembly 100.
Referring to fig. 7 and 8, in the present embodiment, the backlight module 10 further includes a transparent conductive layer 70, when the display panel assembly 100 controls the display brightness by adjusting the deflection angle of the liquid crystal molecules of the display panel 20, the transparent conductive layer 70 is electrically connected between the photosensitive element 30 and the display panel 20, and when the display panel assembly 100 controls the display brightness by adjusting the brightness of the backlight source provided by the backlight module 10, the transparent conductive layer 70 is electrically connected between the photosensitive element 30 and the backlight module 10. Specifically, the transparent conductive layer 70 may be an ITO layer deposited on the surface of the diffusion sheet 40 or the prism film 50 and patterned. Referring specifically to fig. 7, the diffuser 40 is provided with first openings 62, the photosensitive elements 30 are located in the first openings 62, and the transparent conductive layer 70 is located on a side of the diffuser 40 facing away from the prism film 50. In one embodiment, the size of the photosensitive element 30 matches the size of the first opening 62, and specifically, the photosensitive element 30 may be in interference fit with the first opening 62, so that the photosensitive element 30 is fixed in the first opening 62, but the photosensitive element 30 may also be adhered in the first opening 62. Referring specifically to FIG. 8, in one embodiment, the prismatic film 50 is provided with a second aperture 64, and the first aperture 62 is opposite the second aperture 64. It can be understood that, after the ambient light passes through the display panel 20, it needs to pass through the prism film 50 and then propagate to the photosensitive element 30 of the backlight module 10, the second opening 64 is designed corresponding to the photosensitive element 30, so that the ambient light passes through the second opening 64 and then propagates to the photosensitive element 30, thereby avoiding the influence of the prism film 50 on the ambient light, specifically, the ambient light can not be influenced by the prism film 50 and the change or loss of the light path occurs, the photosensitive element 30 can be more accurate, more ambient light can be received, and the controller 200 is facilitated to make accurate adjustment on the display brightness of the display screen assembly 100.
Referring to fig. 9, fig. 9 is a schematic surface view of a backlight module 10 of a display panel assembly 100 according to a third embodiment of the present application. In this embodiment, the reflective surface 12a of the substrate 12 includes a first region 122 and a second region 124, the light-emitting units 14 include a first light-emitting unit 142 and a second light-emitting unit 144, the first light-emitting unit 142 is arranged on the first region 122 in an array, the second light-emitting unit 144 and the first projection 32 are alternately arranged on the second region 124, and the second region 124 is located at an edge of the first region 122. Specifically, the first light-emitting unit 142 and the second light-emitting unit 144 are the same light-emitting unit 14, and the first light-emitting unit 142 and the second light-emitting unit 144 are divided according to the position of the light-emitting unit 14.
Referring to fig. 9 and 10, fig. 10 is a schematic front view of the display panel assembly 100, in the present embodiment, the first area 122 is provided with the first light-emitting unit 142, and the first projection 32 is absent, in other words, the first area 122 is used for providing backlight light and does not have a light sensing function, and a portion of the display panel 20 corresponding to the first area 122 is used for displaying an image; the second region 124 is provided with the second light-emitting unit 144 and the first projection 32, in other words, the second region 124 not only can provide backlight light, but also has a light sensing function, and the display panel 20 is used for displaying images and sensing light for a portion of the second region 124. Specifically referring to fig. 10, the display area 11 of the display panel assembly 100 includes a first display area 112 and a second display area 114, the first display area 112 corresponds to a first area 122, the second display area 114 corresponds to a second area 124, the first display area 112 is used for displaying images, the second display area 114 is used for displaying images and sensing light, it can also be understood that the second display area 114 is a light sensing area of the display panel assembly 100, in other words, the ambient light irradiated to the second display area 114 is received by the light sensing element 30 corresponding to the first projection 32 located in the second area 124 after passing through the display panel 20. In this embodiment, the second area 124 is located at the edge of the first area 122, and correspondingly, the second display area 114 of the display screen assembly 100 is located at the edge of the first display area 112, in other words, the photosensitive area is located at the edge of the display area 11 of the display screen assembly 100, so as to reduce the influence on the display effect of the display screen assembly 100.
Referring to fig. 9, in one embodiment, the number of the second regions 124 is one, the second region 124 is located at the top of the first region 122, correspondingly, on the display panel assembly 100, the second display region 114 is located at the top of the display region 11, and when the ambient light irradiates the top of the display region 11, the photosensitive element 30 can receive the ambient light so as to adjust the display brightness of the display panel assembly 100.
Referring to fig. 11, in another embodiment, the number of the second regions 124 is multiple, the multiple second regions 124 are respectively located at an edge position of the first region 122, such as a corner position, and correspondingly, on the display screen assembly 100, the multiple second display regions 114 are located at an edge of the display region 11, and when the ambient light is irradiated to the edge position of the display region 11, the photosensitive element 30 corresponding to the first projection 32 can receive the ambient light so as to adjust the display brightness of the display screen assembly 100. The second regions 124 are separately disposed to avoid the problem that the controller 200 cannot correctly adjust the display brightness of the display screen assembly 100 when one second region 124 is blocked, and the photosensitive elements 30 corresponding to the first projections 32 located in different second regions 124 can receive the ambient light from different angles or positions, so that the controller 200 can more accurately adjust the display brightness of the display screen assembly 100. In one embodiment, the number of the photosensitive elements 30 corresponding to the first projection 32 disposed in each of the second regions 124 is the same, so as to calculate the actual ambient light intensity comprehensively.
Referring to fig. 9, in the embodiment, the first light-emitting units 142 are distributed in the first region 122 in an array, the intervals of the first light-emitting units 142 are the same, and the first light-emitting units 142 are distributed in the first region 122, so that the first region 122 can provide uniform backlight light.
Referring to fig. 9, in an embodiment, the second light emitting units 144 are distributed in the second region 124 in an array, a distance between two adjacent second light emitting units 144 is the same, and the distance between two adjacent second light emitting units 144 is equal to a distance between two adjacent first light emitting units 142, that is, a distribution density of the first light emitting units 142 is the same as a distribution density of the second light emitting units 144, uniformity and brightness of the backlight light provided by the first region 122 and the second region 124 are the same, and the backlight module 10 can provide the backlight light with uniform brightness. The first projection 32 is embedded between the adjacent second light-emitting units 144, and the photosensitive element 30 corresponding to the first projection 32 receives the ambient light from the gap between the adjacent second light-emitting units 144, which can also be understood as that the light-emitting units 14 (the first light-emitting unit 142 and the second light-emitting unit 144) are distributed on the substrate 12 in an array manner, and the photosensitive element 30 corresponding to the first projection 32 is further embedded in the gap between the light-emitting units 14 (the second light-emitting units 144) in the second area 124. The photosensitive element 30 has little effect on the backlight provided by the backlight module 10.
Referring to fig. 12, fig. 12 is a schematic view of a backlight module 10 according to another embodiment. In this embodiment, the second light emitting cells 144 are distributed in the second region 124 in an array, the pitch between two adjacent second light emitting cells 144 is the same, the pitch between two adjacent second light emitting cells 144 is twice the pitch between two adjacent first light emitting cells 142, that is, the distribution density of the first light emitting cells 142 is different from the distribution density of the second light emitting cells 144, the photosensitive units are alternately arranged with the second light emitting cells 144, and the pitch between the adjacent first projection 32 and the two adjacent second light emitting cells 144 is equal to the pitch between the first light emitting cells 142. It can also be understood that in the second region 124, a portion of the second light-emitting units 144 is replaced by the first projection 32, and the distribution density of the first light-emitting units 142 is greater than that of the second light-emitting units 144. The distance between the first projections 32 is increased, so that the adjacent photosensitive elements 30 are prevented from repeatedly receiving ambient light, the utilization rate of a single photosensitive element 30 is improved, the number of the photosensitive elements 30 is reduced, the structure and the circuit design of the backlight module 10 are simplified, and the cost is reduced.
Referring to fig. 13, in the present embodiment, a first polarizer 282 and a second polarizer 284 are disposed on two sides of the display panel 20, the first polarizer 282 and the second polarizer 284 are disposed with a third opening 66 facing the photosensitive element 30, and the third opening 66 is used for transmitting ambient light. Specifically, the polarization directions of the first polarizer 282 and the second polarizer 284 are perpendicular to each other, and when the polarization direction of the light is not changed by the deflection of the liquid crystal molecules, the light cannot pass through the first polarizer 282 and the second polarizer 284, the ambient light sequentially passes through the third openings 66 on the first polarizer 282 and the second polarizer 284 and then enters the backlight module 10, and the third openings 66 prevent the ambient light from being intercepted between the first polarizer 282 and the second polarizer 284, which is also beneficial to reducing the loss of the ambient light when the ambient light passes through the display panel 20.
Referring to fig. 13, a display panel assembly 100 provided in the fourth embodiment of the present application is different from the second embodiment in that the prism film 50 is provided with a second opening 64, the photosensitive element 30 is located in the second opening 64, and the transparent conductive layer 70 is located on a side of the prism film 50 facing away from the diffusion sheet 40. In one embodiment, the size of the photosensitive element 30 matches the size of the second opening 64, and specifically, the photosensitive element 30 may be in interference fit with the second opening 64, so that the photosensitive element 30 is fixed in the second opening 64, but of course, the photosensitive element 30 may also be adhered in the second opening 64. Referring specifically to FIG. 14, in one embodiment, diffuser 40 is provided with first openings 62, with first openings 62 facing second openings 64. It can be understood that, after the ambient light passes through the display panel 20, the ambient light needs to pass through the diffusion sheet 40 and then propagate to the photosensitive element 30 of the backlight module 10, the first opening 62 is designed corresponding to the photosensitive element 30, so that the ambient light passes through the first opening 62 and then propagates to the photosensitive element 30, thereby avoiding the influence of the diffusion sheet 40 on the ambient light, specifically, the ambient light may not be influenced by the diffusion sheet 40 and change or loss of the light path occurs, the photosensitive element 30 may receive the ambient light more accurately and more, and the controller 200 is favorable for accurately adjusting the display brightness of the display screen assembly 100.
Referring to fig. 15 and fig. 16, a display panel assembly 100 provided in the fifth embodiment of the present disclosure is different from the second embodiment in that a diffusion plate 40 is provided with a first opening 62, a prism film 50 is provided with a second opening 64, the first opening 62 faces the second opening 64, a photosensitive element 30 is located in the first opening 62 and the second opening 64, and a transparent conductive layer 70 is located on a side of the diffusion plate 40 facing away from the prism film 50 or a side of the prism film 50 facing away from the diffusion plate 40. Specifically, the first opening 62 and the second opening 64 cooperate to position the photosensitive element 30, providing a larger space for positioning the photosensitive element 30, and the photosensitive element 30 is more firmly fixed.
Referring to fig. 1, an electronic device including a display screen assembly 100 according to an embodiment of the present disclosure is further provided.
In this embodiment, the controller 200 is electrically connected to the light-sensing element 30 and the light-emitting unit 14, and the total light intensity received by the light-sensing element 30 is a1The light intensity of the backlight light received by the light sensing element 30 is the interference light intensity A2The controller 200 is also used to calculate the actual ambient light intensity A3Actual ambient light intensity A3Equal to the total light intensity A1With the disturbance light intensity A2The difference being A3＝A1-A2。
In particular, the disturbance light intensity A2The intensity of the part of the backlight light actually received by the photosensitive element 30, in other words, the disturbance light intensity A2Is the intensity of the light applied to the area covered by the photosensitive element 30. Referring to fig. 17, the area covered by the light-emitting unit 14 is an area I, the area covered by the light-sensing unit is an area II, and only the backlight light acting on the area II among the backlight light emitted by the light-emitting unit 14 is received by the light-sensing element 30.
In this embodiment, the total backlight intensity emitted by all the light-emitting units 14 in the region I is a4The backlight intensity per unit area is A5，
A5＝A4/SI
Wherein S isIIs the area of region I.
Disturbance light intensity A2Has a region of action of region II, then
A2＝A5*SII＝A4/SI*SII
Wherein S isIIIs the area of region II.
So the actual environmental light intensity A3Is composed of
A3＝A1-A2＝A1-A4/SI*SII
Wherein the total light intensity is A1The backlight intensity A measured by the photosensitive element 304Can be calculated according to the driving current for driving the luminous monomer 14 to emit light, SIAnd SIICan be obtained by measurement.
In this embodiment, the controller 200 is based on the actual ambient light intensity A3Controls the display brightness of the display screen assembly 100. Actual ambient light intensity A3The calculation method is simple and the calculation amount is small.
In this embodiment, the controller 200 is further configured to adjust the display brightness of the display screen assembly 100 according to the ambient light and the current display brightness of the display screen assembly 100. Specifically, the photosensitive element 30 is electrically connected to the controller 200 of the electronic device, the controller 200 is further electrically connected to the display panel 20, the controller 200 controls the display brightness of the display screen assembly 100 according to the electrical signal transmitted by the photosensitive element 30, for example, when the photosensitive element 30 senses that the intensity of the ambient light is large, the controller 200 controls the display screen assembly 100 to display at a large display brightness, so that the user can clearly observe the image content displayed by the display panel 20, when the photosensitive element 30 senses that the intensity of the ambient light is small, the controller 200 controls the display screen assembly 100 to display at a small display brightness, so as to prevent the user from being damaged due to the large display brightness, adjust the display brightness of the display screen assembly 100 to a proper range in real time according to the intensity of the ambient light, and further play a role in reducing energy consumption and improving endurance of the electronic device.
It is to be understood that 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 embodiments of the present application, "a plurality" means two or more unless specifically defined otherwise.
In the description herein, reference to the description of the terms "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example" or "some examples" or the like means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the application. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
While the present invention has been described with reference to a few preferred embodiments, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.

Claims (11)

1. A display screen assembly, comprising:
the display panel is provided with a first polarizing film and a second polarizing film on two sides;
the backlight module is positioned on one side of the display panel and comprises an optical membrane, a substrate and a plurality of light-emitting monomers arranged on the substrate at intervals, the optical membrane is positioned between the substrate and the display panel and covers the light-emitting monomers, light rays emitted by the light-emitting monomers penetrate through the optical membrane to provide backlight light rays for the display panel, and the optical membrane is provided with one or more openings;
one or more photosensitive elements, one of which is correspondingly located in one of the openings, the orthographic projection of the photosensitive element on the substrate is located in a gap formed by the plurality of light-emitting monomers, the photosensitive element is coupled with the display panel or the backlight module, and the photosensitive element is used for sensing the ambient light intensity of ambient light from the outside and passing through the display panel so as to trigger the display screen assembly to adjust the display brightness according to the ambient light intensity;
the first polaroid and the second polaroid are provided with a third opening which is opposite to the photosensitive element, the third opening is used for transmitting the ambient light, the polarization directions of the first polaroid and the second polaroid are vertical, the light cannot pass through the first polaroid and the second polaroid under the condition that the polarization direction of the light is changed without being deflected by liquid crystal molecules, the ambient light sequentially passes through the third openings on the first polaroid and the second polaroid and then enters the backlight module, the backlight module comprises a transparent conducting layer, when the display brightness is controlled by adjusting the deflection angle of liquid crystal molecules of the display panel, the transparent conducting layer is electrically connected between the photosensitive element and the display panel, and when the display brightness is controlled by adjusting the brightness of a backlight source provided by the backlight module, the transparent conducting layer is electrically connected between the photosensitive element and the backlight module.
2. A display screen assembly as recited in claim 1, wherein the optical film includes a diffuser and a prismatic film in a stacked arrangement, the diffuser being located between the prismatic film and the substrate, at least one of the diffuser and the prismatic film being provided with the apertures.
3. A display screen assembly according to claim 2, wherein the aperture is provided in the diffuser sheet, the aperture is a first aperture, the photosensitive element is located in the first aperture, and the transparent conductive layer is located on a side of the diffuser sheet facing away from the prismatic film.
4. A display screen assembly according to claim 2, wherein the aperture is provided in the prismatic film, the aperture is a second aperture, the light-sensing element is located in the second aperture, and the transparent conductive layer is located on a side of the prismatic film facing away from the diffuser sheet.
5. A display screen assembly according to claim 2, wherein the openings are provided in the diffuser and the prismatic film, the opening in the diffuser being a first opening, the opening in the prismatic film being a second opening, the first opening being opposite the second opening, the photosensitive element being located in the first opening and the second opening, the transparent conductive layer being located on a side of the diffuser facing away from the prismatic film or a side of the prismatic film facing away from the diffuser.
6. The display screen assembly of any one of claims 1 to 5, wherein the substrate includes a reflective surface, the reflective surface is configured to reflect light emitted by the light-emitting units to the display panel, an orthogonal projection of the photosensitive element on the reflective surface forms a first projection, the reflective surface includes a first region and a second region, the light-emitting units include a first light-emitting unit and a second light-emitting unit, the first light-emitting unit is arranged on the first region in an array, the second light-emitting unit and the first projection are alternately arranged on the second region, and the second region is located at an edge of the first region.
7. The display screen assembly of claim 6, wherein the pitch of two adjacent first light-emitting cells is the same as the pitch of two adjacent second light-emitting cells.
8. The display screen assembly of claim 6, wherein the second light emitting cell adjacent to the first projection is spaced from the first projection by a distance equal to a distance between the first light emitting cells adjacent to the second light emitting cell.
9. The display screen assembly of claim 6, wherein the second regions are a plurality in number and the first projections disposed in each of the second regions are the same in number.
10. An electronic device, comprising a controller and the display panel assembly of any one of claims 1 to 9, wherein the controller is electrically connected to the light sensing element and the light emitting unit, total light intensity sensed by the light sensing element includes ambient light intensity and backlight light intensity, the controller is configured to obtain the total light intensity and the backlight light intensity, and calculate the ambient light intensity according to the total light intensity and the backlight light intensity, and the ambient light intensity is equal to a difference between the total light intensity and the backlight light intensity.
11. The electronic device of claim 10, wherein the controller is electrically connected to the display panel or the backlight module, and the controller is further configured to adjust the display brightness of the display screen assembly according to the ambient light and the current display brightness of the display screen assembly.
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