WO2021217676A1

WO2021217676A1 - Display panel, display terminal and display device

Info

Publication number: WO2021217676A1
Application number: PCT/CN2020/088534
Authority: WO
Inventors: 王铠尧; 刘永俊; 杨晖
Original assignee: 华为技术有限公司
Priority date: 2020-04-30
Filing date: 2020-04-30
Publication date: 2021-11-04
Also published as: CN115428063A

Abstract

A display panel (11) for increasing the screen-to-body ratio and capable of performing image display and image acquisition in a time-sharing manner, wherein the display panel (11) comprises a plurality of pixel units (P) arranged in a matrix, and each pixel unit (P) comprises at least one first photoelectric conversion unit (101) used for emitting light so as to display an image. An image acquisition module (13) is provided between the pixel units (P) in at least a part of a display region. The image acquisition module (13) comprises a lens layer (131) for acquiring ambient light and a second photoelectric conversion unit (102) for converting the ambient light into an electrical signal, the electrical signal being used to reconstruct an image corresponding to the ambient light. The emission of the light by the first photoelectric conversion unit (101) and the outputting of the electrical signal by the second photoelectric conversion unit (102) are performed in a time-sharing manner, and the display panel (11) multiplexes image display and image acquisition functions in a part of the display region. The present application further relates to a display terminal and display device comprising the display panel (11).

Description

Display panel, display terminal and display device

Technical field

This application relates to the field of image display and image acquisition, and in particular to a display panel, a display terminal and a display device.

Background technique

In the process of displaying images on the self-luminous display panel, in order to realize that the image display interface facing the user can collect images, an image acquisition device at the position of the display interface is required. For example, a front camera needs to be set on the display interface. Obviously, the setting of the front camera inevitably occupies a part of the position of the image display interface, which causes the display area of the display interface to be limited, resulting in a relatively small screen occupancy of the display interface.

Summary of the invention

The embodiment of the present application provides a display panel with a relatively large screen and better image collection.

In an implementation manner of the present application, a display panel is provided, including a display area, the display area includes a plurality of pixel units arranged in a matrix, and each pixel unit includes at least one first device for emitting light to display an image. Photoelectric conversion unit. An image acquisition module is arranged between the pixel units in the first area in the display area. The image acquisition module includes a lens layer and a second photoelectric conversion unit, the lens layer is used to transmit ambient light outside the display panel to the second photoelectric conversion unit, the second photoelectric conversion unit is used to In the acquisition state, the ambient light is converted into an electrical signal, and the electrical signal is used to reconstruct an image corresponding to the ambient light, wherein the light emitted by the first photoelectric conversion unit and the second photoelectric conversion unit output the electrical signal. The signal is time-sharing. As a result, the display panel can perform image display and image acquisition in a time-sharing manner, and the display panel can directly multiplex the functions of image display and image acquisition without the need to separately set up image acquisition devices such as cameras to achieve full-screen display and effectively improve the display. The screen-to-body ratio of the interface.

In an implementation manner of the present application, the first area includes an image display state and an image acquisition state, and when the first area is in the image display state, the first photoelectric conversion unit emits light to perform image display, so The second photoelectric conversion unit stops outputting the electrical signal. When the first area is in the image acquisition state, the first photoelectric conversion unit stops emitting light, and the second photoelectric conversion unit converts the ambient light into the electrical signal. The lens layer is a condensing lens, which is used to converge and transmit the ambient light to the second photoelectric conversion unit. When the first area is in an image capture state, the second photoelectric conversion unit receives and collects it from the second photoelectric conversion unit. The converged ambient light provided by the lens layer converts the ambient light into an electrical signal.

In an implementation manner of the present application, the first photoelectric conversion unit and the lens layer are arranged side by side in the same layer, and the lens layer faces and covers the second photoelectric conversion unit. Since the first photoelectric conversion unit and the lens layer are arranged side by side in the same layer, the second photoelectric conversion unit is separated from the first photoelectric conversion unit by at least a structural distance, which can effectively prevent the light emitted by the first photoelectric conversion unit Leak to the second photoelectric conversion unit.

In an implementation manner of the present application, the second conversion unit is a photodetector, and the first conversion unit is a light emitting diode, an organic light emitting diode, or a micro light emitting diode.

In an implementation manner of the present application, the lens layer includes a condensing lens state and a flat lens state. When the first area is in the image display state, the first photoelectric conversion unit emits light to display the image, the lens layer is in the flat lens state, and the second photoelectric conversion unit stops converting the ambient light into all述电信号。 Said electrical signal. When the first area is in the image capturing state, the first photoelectric conversion unit stops emitting light, the lens layer is in the condenser state, and the ambient light is converged and transmitted to the second photoelectric conversion unit. The second photoelectric conversion unit receives and collects the converged ambient light provided from the lens layer, and converts the ambient light into an electrical signal.

Since the lens layer can present two states: a condensing lens state and a flat lens state, to adapt to the image display state or the image acquisition state of the display panel, it is ensured that the image display quality is better and the collected image quality is better.

In an implementation manner of the present application, the display panel further includes a control module connected to the lens layer, and the control module is used to output different voltages to the lens layer and control the lens layer. The lens layer is in a condensing lens state or a flat lens state. When the control module receives the first instruction, the control module outputs a first voltage to the lens layer and controls the lens layer to be in a flat lens state, and the first instruction is used to instruct the first Area for image display. Or, when the control module receives the second instruction, the control module outputs a second voltage to the lens layer and controls the lens layer to be in the state of the condensing lens, and the second instruction is used to instruct the Image acquisition is performed in the first area. Provide different voltages to the lens layer according to the instructions corresponding to the image display state and the image acquisition state, so as to accurately control the refractive index of the lens layer to control the phase of incident light and ensure that it accurately matches the image display state or image acquisition state of the display panel .

In an implementation manner of the present application, the lens layer is a hyperplanar lens. The first voltage controls the phase shift angle of the ambient light entering the hyperplanar lens to 0°, the hyperplanar lens is a flat mirror, and the second voltage controls the ambient light entering the hyperplanar lens The phase shift angle is

The hyperplane lens has a condenser lens for condensing and transmitting the ambient light to the second photoelectric conversion unit, and the phase shift angle

It is used to adjust the focal length required for the currently acquired image. Since the lens layer is a hyperplanar lens, the refractive index of the lens layer can be accurately controlled by providing different voltages, so as to achieve the control of the incident light phase retardation angle, especially when the hyperplanar lens is in the condenser lens, through the phase retardation of the incident light The control of the angle can adjust the focal length of the hyperplanar lens to ensure that the captured image has a higher definition.

In an implementation of the present application, when the shape and area of the first area and the display area are the same, the control module receives a first instruction, and the control module provides a first voltage to the lens layer , Controlling the lens layer to be in a flat lens state, and controlling the second photoelectric conversion unit to stop performing photoelectric conversion at the same time. The control module receives the second instruction, and the control module alternately outputs the first voltage and the second voltage according to a preset frequency. The second voltage controls the first photoelectric conversion unit to stop emitting light, and at the same time controls the lens layer to be in the condensing lens state, and controls the second photoelectric conversion unit to control the converged environment received from the lens layer The light performs photoelectric conversion. Among them, since the first area extends to the entire display interface, in order to ensure that the display panel does not affect the user's viewing of images while performing image acquisition, the preset frequency can be 60HZ, at which the user can visually display the interface In the state of image display, the user's visual experience is guaranteed.

In an implementation manner of the present application, when the first area is smaller than the area of the display area, the control module receives a first instruction, and the control module provides a first voltage to the lens layer to control all The lens layer is in a flat lens state, and at the same time, the second photoelectric conversion unit is controlled to stop performing photoelectric conversion. The control module receives a second instruction, the control module outputs a second voltage, the second voltage controls the first photoelectric conversion unit to stop emitting light, and at the same time controls the lens layer to be in a condensing lens state, and The second photoelectric conversion unit is controlled to perform photoelectric conversion on the condensed ambient light received from the lens layer. The area where the multiplexing of the image display and the image acquisition function is performed will not affect the image display of only the image display area when performing the image display, so that the image display and the image acquisition can be performed on the display panel at the same time.

In an implementation manner of the present application, when the control module receives the first instruction again, it exits the image acquisition state and enters the image display state. After the display panel completes image acquisition, it exits the image acquisition state by receiving an instruction indicating that it returns to the image display state again, and all pixel units in the display area perform image display.

In one implementation of the present application, the first photoelectric conversion unit and the second photoelectric conversion unit are arranged side by side in the same layer, and the lens layer faces and covers the second photoelectric conversion unit, so that the lens layer and the second photoelectric conversion unit The first photoelectric conversion unit is arranged at a certain distance. When the first photoelectric conversion unit emits light and the lens layer is in a flat lens, the lens layer can assist in transmitting the light emitted by the first photoelectric conversion unit to the outside of the display panel to effectively improve image display brightness.

In an implementation manner of the present application, the first conversion unit is a light emitting diode, an organic light emitting diode or a micro light emitting diode, and the second photoelectric conversion unit is a photodetector.

In an implementation manner of the present application, the first photoelectric conversion unit is further configured to receive the ambient light in an image acquisition state and convert the ambient light into an electrical signal to perform image acquisition. The second photoelectric conversion unit is also used to convert the image data into a light signal and emit it to display the image in the image display state. The first photoelectric conversion unit and the second photoelectric conversion unit are micro light emitting diodes. Both the first photoelectric conversion unit and the second photoelectric conversion unit can perform image display and image collection in a time-sharing manner, which further improves the resolution and clarity of image display and collection.

In an implementation manner of the present application, the first photoelectric conversion unit and the second photoelectric conversion unit are arranged side by side on the same layer, and the lens layer covers the first conversion unit and the second photoelectric conversion unit. As a result, the lens layer can simultaneously cover the first photoelectric conversion unit and the second photoelectric conversion unit, which effectively improves the brightness during image display and the fineness of focus adjustment during image capture, thereby ensuring the quality of image capture.

In an implementation of the present application, when the area of the first area and the display area are the same, the control module receives the first instruction, and the control module provides the first voltage to the lens layer to control The lens layer is in a flat lens state, and the first photoelectric conversion unit and the second photoelectric conversion unit are simultaneously controlled to emit light to display images. The control module receives a second instruction, the control module alternately outputs a first voltage and a second voltage according to a preset frequency, and the second voltage controls the lens layer to be in a condensing lens state, and controls the first The photoelectric conversion unit and the second photoelectric conversion order stop emitting light, and at the same time perform photoelectric conversion of the condensed ambient light received from the lens layer. Among them, since the first area extends to the entire display interface, in order to ensure that the display panel does not affect the user's viewing of images while performing image acquisition, the preset frequency can be 60HZ, at which the user can visually display the interface In the state of image display, the user's visual experience is guaranteed.

In an implementation manner of the present application, when the first area is smaller than the area of the display area, the control module receives a first instruction, and the control module provides a first voltage to the lens layer to control all The lens layer is in a flat lens state, and the first photoelectric conversion unit and the second photoelectric conversion unit are simultaneously controlled to emit light to display images; in the image acquisition state, the control module receives the second instruction, so The control module outputs a second voltage, and the second voltage controls the lens layer to be in a condensing lens state, controls the first photoelectric conversion unit and the second photoelectric conversion order to stop emitting light, and simultaneously The condensed ambient light received by the lens layer performs photoelectric conversion. The area where the multiplexing of the image display and the image acquisition function is performed will not affect the image display of only the image display area when performing the image display, so that the image display and the image acquisition can be performed on the display panel at the same time.

In an implementation manner of the present application, a display terminal is provided, which includes an input module and the display panel described in any one of the foregoing, and the input module is used to accept a user's operation and input control instructions according to the The control instruction generates the first control instruction and the second control instruction correspondingly. The display panel in the display terminal can multiplex the two functions of image display and image acquisition, so that the screen-to-body ratio of the display panel is effectively increased, and a larger space is provided for realizing a full-screen display.

In an implementation manner of the present application, a display device is provided, including the display panel described in any one of the foregoing.

Description of the drawings

FIG. 1 is a schematic diagram of a plane structure of a display terminal in an embodiment of the application;

FIG. 2 is a schematic diagram of a side structure of the display terminal shown in FIG. 1;

FIG. 3 is a schematic diagram of the structure of the plane of the display panel shown in FIG. 2; FIG.

Fig. 4 is a schematic diagram showing the distribution of the image acquisition module shown in Fig. 3 on the display interface;

Fig. 5 is a schematic diagram of the image acquisition module distribution on the display interface as shown in Fig. 3;

FIG. 6 is a schematic diagram of an enlarged structure of the first area shown in FIG. 1 and FIG. 3;

FIG. 7 is a schematic diagram of the cross-sectional structure along the line VI-VI as shown in FIG. 6 in the first embodiment of the application;

FIG. 8 is a schematic diagram of the connection between the image display module and the image acquisition module shown in FIG. 7;

Fig. 9 is a flowchart of driving the display panel to perform image display acquisition as shown in Figs. 6-7;

Figure 10 is a schematic diagram of time sequence control of image display acquisition;

11 is a schematic diagram of the cross-sectional structure along the VI-VI line as shown in FIG. 6 in the second embodiment of the application;

FIG. 12 is a schematic diagram of the specific structure of the lens layer as shown in FIG. 11;

FIG. 13 is a schematic diagram of the optical path structure of the lens layer in the condenser state as shown in FIG. 11; FIG.

Fig. 14 is a schematic diagram of the optical path of the lens layer in the plane mirror mode as shown in Fig. 13;

15 is a schematic diagram of the optical path of the lens layer in the condenser mode as shown in FIG. 13;

FIG. 16 is a schematic diagram of the connection of the driving display panel function module shown in FIG. 11;

FIG. 17 is a flowchart of driving the display panel to perform image display collection as shown in FIG. 11 and FIG. 16;

18 is a schematic diagram of timing control for driving the display panel to perform image display acquisition as shown in FIGS. 11 and 16;

FIG. 19 is a flowchart of driving the display panel to perform image display acquisition as shown in FIG. 11 and FIG. 16;

20 is a schematic diagram of timing control for driving the display panel to perform image display acquisition as shown in FIG. 11 and FIG. 16;

21 is a schematic diagram of the cross-sectional structure along the VI-VI line shown in FIG. 6 in the third embodiment of the application;

22 is a schematic diagram of the connection of the driving display panel function module shown in FIG. 21;

FIG. 23 is a schematic diagram of timing control for driving the display panel to perform image display acquisition as shown in FIG. 11 and FIG. 16;

FIG. 24 is a schematic diagram of timing control for driving the display panel to perform image display acquisition as shown in FIG. 11 and FIG. 16.

Detailed ways

The embodiments of the present invention will be described below with reference to the accompanying drawings.

FIG. 1 is a schematic diagram of a plane structure of a display terminal in an embodiment of the application. As shown in Fig. 1, the display terminal 10 includes a display interface (Active Area) AA for performing image display and graphics collection, and an instruction acquisition module for receiving user operations. Among them, the operation of the user for the display terminal 10 represents the corresponding control command input by the user. In this embodiment, the command acquisition module may be: a mechanical button, a language pickup module, a motion sensor, a brain wave sensor, and an image acquisition module. Group.

In this embodiment, the shape and size of the light-emitting area on the front of the display interface AA and the display terminal 10 are basically the same, and the display interface AA performs image display according to image data in a time-sharing manner or acquires light in the external environment for image collection. Among them, the display interface AA may perform image display and image acquisition in a time-sharing part of the area, or perform image display and image acquisition in a time-sharing manner in all the entire area of the display interface AA. That is, the display terminal 10 can be in an image display state or an image acquisition state in at least a part of the display interface AA in a time-sharing state. Therefore, the display interface AA can perform image display and image acquisition in a time-sharing manner, and the display interface AA can multiplex the image display. With the function of image acquisition, there is no need to separately set up an image acquisition device such as a camera to realize a full-screen display and effectively increase the screen-to-body ratio of the display interface.

The display interface AA includes a plurality of pixel units P uniformly arranged in an array, and each pixel includes a plurality of sub-pixels (Pixel) arranged at intervals of a preset distance, and each sub-pixel is composed of a first photoelectric conversion unit (Figure 7 ) Structure, a plurality of sub-pixels Pixel as an image display module 12 (FIG. 3).

The display interface AA includes a first area A1. In the first area A1, a plurality of second photoelectric conversion units (FIG. 7) are arranged between each sub-pixel Pixel, and the plurality of second photoelectric conversion units are used as an image acquisition module. Group 13 (Figure 3).

Wherein, the first photoelectric conversion unit and the second photoelectric conversion unit are elements that convert photoelectric signals. The first photoelectric conversion unit converts the image signal into an optical signal to display the image, and the second photoelectric conversion unit collects the environment and converts the light into an electrical signal to reconstruct the image.

Please refer to FIG. 2, which is a schematic diagram of the side structure of the display terminal shown in FIG. 1.

As shown in FIG. 2, the display terminal 10 includes a touch layer TL and a display panel 11 which are laminated. The display panel 11 includes a light-emitting surface 11 a for emitting light, and the touch layer TL is disposed on the surface of the light-emitting surface 11 a of the display panel 11. The touch layer TL is used to sense the user's touch operation.

The display panel 11 at least includes an array substrate 111 and a photoelectric conversion layer 112 disposed on the surface of the array substrate 111. In this embodiment, the photoelectric conversion layer 112 includes a plurality of photoelectric conversion elements (not shown). The photoelectric conversion elements may be light-emitting diodes (LEDs), organic light-emitting semiconductor materials (Organic Electroluminescence Diodes, OLEDs), and miniature light-emitting diodes. Diode (Micro-Size Light Emitting Diode, μ-LED).

Of course, in other embodiments of the present application, the touch layer TL may not need to be provided.

Please refer to FIG. 3, which is a schematic diagram of the planar structure of the display panel shown in FIG.

As shown in FIG. 3, the display panel 11 includes an image display module 12 that emits light to display an image and an image capture module 13 that collects ambient light to obtain an image.

The image display module 12 is distributed on all the display interfaces AA, and the image acquisition module 13 is distributed on at least a part of the display interface.

For the image display module 12, it includes a plurality of pixel units evenly distributed across the display interface AA, each pixel includes a plurality of sub-pixels (Pixel) spaced a predetermined distance apart, and each sub-pixel serves as a first photoelectric conversion unit , Used to convert the image signal of the analog electrical signal into an optical signal and emit it. Among them, each pixel unit includes at least a red sub-pixel (R), a green sub-pixel (G) and a blue sub-pixel (B) respectively emitting red light, green light and blue light three-color sub-pixels, through the three-color sub-pixel The red light, green light and blue light emitted by the pixels are mixed with different brightness and gray scales, and each pixel unit can emit colored light, thereby realizing the display interface AA to perform color image display.

The image acquisition module 13 is distributed at least in a partial area of the display interface AA. The image acquisition module 13 is distributed between the sub-pixels, and is used to collect ambient light outside the display terminal 10 and convert the ambient light into The electrical signal is processed to reconstruct an image outside the display terminal.

In this embodiment, the size of the image acquisition module 13 is smaller than the size of the sub-pixels in the image display module.

The display terminal 10 also includes an image display drive control circuit 12A for driving the image display module 12 to perform image display, and an image acquisition drive control circuit 13A for driving the image acquisition module 13 to perform image acquisition and reconstruction. The image display drive control circuit 12A and the image capture drive control circuit 13A are arranged in the non-image display area of the display terminal 10.

Specifically, please refer to FIG. 4, which is a schematic diagram of the image acquisition module distribution on the display interface AA as shown in FIG.

The display interface AA includes a first area A1, the first area A1 is smaller than the area of the display interface AA, and the first area A1 can be set at any position of the display interface.

The first area A1 includes an image display module and an image acquisition module at the same time, wherein the image acquisition module is distributed between the sub-pixels.

Specifically, please refer to FIG. 5, which is a schematic diagram of the image acquisition module distribution on the display interface AA as shown in FIG. 3.

The display interface AA includes a first area A1, and the area and shape of the first area A1 are the same as the area and shape of the display interface AA, that is, the first area A1 overlaps the display interface AA.

The first area A1 and the display interface AA include both an image display module and an image acquisition module, wherein the image acquisition module is distributed between the sub-pixels.

Please refer to FIG. 6, which is a schematic diagram of an enlarged structure of the first area A1 shown in FIG. 1 and FIG. 3.

As shown in FIG. 6, in the first area A1 of the display interface AA, the first area A1 includes a plurality of pixel units P, and each pixel includes a plurality of sub-pixels set at intervals of a preset distance, and each sub-pixel The pixel Pixel is composed of a first photoelectric conversion unit 101, and is used for converting an image signal of an analog electric signal into an optical signal and emitting it.

Meanwhile, in the first area A1, a plurality of second photoelectric conversion units 102 are provided between adjacent sub-pixels Pixel. The second photoelectric conversion unit 102 is used to collect ambient light and convert the light signal into an electrical signal, which can be used to reconstruct an image of the ambient light.

The arrangement of the second photoelectric conversion unit 102 and the sub-pixels Pixel can be set according to actual needs. For example, a second photoelectric conversion unit 102 is arranged between two adjacent sub-pixels as shown in FIG. 6, and each sub-pixel The pixel Pixel is surrounded by six second photoelectric conversion units 102 arranged in a rectangular shape. In other implementations of the present application, two or more second photoelectric conversion units 102 are arranged between two adjacent sub-pixels Pixel, and the number of second photoelectric conversion units 102 arranged around each sub-pixel Pixel may also be The shape of the four components can also be rhombus, circle or other shapes, and is not limited to this.

In this embodiment, the first photoelectric conversion unit 101 converts the image signal into an optical signal and emits the displayed image. The second photoelectric conversion unit 102 collects the environment and converts the light into an electrical signal to reconstruct the image in a time-sharing process, that is, the first photoelectric conversion When the unit 101 converts an image signal into a light signal and emits an image to display an image, the second photoelectric conversion unit 102 stops collecting the ambient light conversion and at the same time stops the electrical signal conversion. When the second photoelectric conversion unit 102 collects the environment and converts the light into an electrical signal, the first photoelectric conversion unit 101 stops converting the image signal into an optical signal and emits it.

Please refer to FIG. 7, which is a schematic diagram of the cross-sectional structure along the line VI-VI as shown in FIG. 6 in the first embodiment of the application.

The image display module 12 includes a first photoelectric conversion unit 101 and a first reading circuit 121, and the first photoelectric conversion unit 101 is used to emit light to display images. The first reading circuit 121 is used to read the image data to be displayed from the image display drive control circuit 12A, and output corresponding drive signals to the first photoelectric conversion unit 101 according to the image data, and drive the first photoelectric conversion unit 101 according to the drive The signal emits light to display the image data accordingly.

The image acquisition module 13 includes a lens layer 131 and a second photoelectric conversion unit 102. The lens layer 131 is used to transmit ambient light outside the display panel to the second photoelectric conversion unit 102. The second photoelectric conversion unit 102 is used to convert the ambient light into an electric signal, and the electric signal is used to reconstruct an image corresponding to the ambient light,

In this embodiment, the lens layer 131 is separated from the second photoelectric conversion unit 102 by a predetermined distance, so that the lens layer converges a sufficient amount of collected ambient light to the second photoelectric conversion unit 102 shown.

In this embodiment, the first photoelectric conversion unit 101 and the first reading circuit 121 are arranged directly opposite each other. At the same time, the first photoelectric conversion unit 101 and the lens layer 131 are arranged on the same layer, and the second photoelectric conversion unit 102 is located on the lens layer. 131 is directly below. The same layer arrangement described in this embodiment is that the first photoelectric conversion unit 101 and the lens layer 131 are basically arranged side by side in the same plane.

In this embodiment, the first photoelectric conversion unit 101 is an LED, OLED or μ-LED, the second photoelectric conversion unit 102 is a photodetector (PD), and the lens layer is a metamaterial lens (Meta-Lens). ).

Please refer to FIG. 8, which is a schematic diagram of the connection between the image display module and the image acquisition module as shown in FIG. 7.

As shown in FIG. 8, the control module 100 is electrically connected to the image display drive control circuit 12A, the image capture drive control circuit 13A, and the second photoelectric conversion unit 102.

Wherein, the control module 100 is configured to receive a control instruction provided by the input module, and the control instruction includes instructing the display device to perform image display or capture an image in the first area A1 of the display interface AA.

The control command can be input by the user touching the touch layer TL in the operation input module. For example, the display interface AA performs image display at the current moment. When the user needs to take a photo, the camera application program on the touch screen is operated and triggered, thereby outputting a control instruction for image collection to the control module 100.

Further, when the image acquisition is completed, and the corresponding position in the operation display interface AA is touched again, a control instruction for image display is output to the control module 100 after the image acquisition is completed.

In other embodiments of the present application, the control instruction may also be an instruction generated by a user operating a mechanical button, a voice module, a motion sensing module, or a brain wave sensing module in the input module.

When the control module 100 receives the control instruction for image capture, the control module 100 controls the image display drive control circuit 12A to stop outputting image data to the image display module 121, and at the same time, controls the ambient light received by the second photoelectric conversion unit 102 It is converted into an electrical signal, and the image acquisition drive control circuit 13A processes the electrical signal and reconstructs the image corresponding to the ambient light.

When the control module 100 receives the image acquisition completion and the image display control instruction, the control module 100 controls the image display drive control circuit 12A to send the image data to be displayed to the image display module 121 for image display, and at the same time, controls The second photoelectric conversion unit 102 stops converting the ambient light into electrical signals, that is, stops image acquisition.

Please refer to FIGS. 9-10. FIG. 9 is a flowchart of driving the display panel to perform image display acquisition as shown in FIGS. 6-7, and FIG. 10 is a schematic diagram of timing control of image display acquisition.

As shown in FIG. 9, the steps of driving the display panel 11 to display and collect images include:

In step 901, the control module 100 receives a second control instruction for image collection. As shown in FIG. 10, at time t2, the display interface AA in the display terminal 10 enters the image acquisition state of the image acquisition time period Tc, and the control module 100 receives the second control instruction for image acquisition. It should be noted that between t1 and t1 before t2, the display interface AA is in the image display state of the image display time period Td.

Step 903, the control module 100 outputs the first control signal to the second photoelectric conversion unit 102 and the image capture drive control circuit 13A according to the second control instruction used to instruct the first area to perform image capture, and controls the second photoelectric conversion unit 102 It is in the open state and converts the received ambient light into electrical signals.

At the same time, the control module 100 outputs the first control signal to the image display drive control circuit 110 to control the image display drive control circuit 110 to stop outputting image data to the image display module.

Step 905: The image acquisition drive control circuit 13A processes the electrical signal and reconstructs an image corresponding to the ambient light.

In step 907, the control module 100 receives a first control instruction used to instruct the first area to perform image display. As shown in FIG. 10, at time t3, the control module 100 receives the first control instruction, and the display interface AA in the display terminal 10 enters the image display state of the image display time period Td.

In step 909, the control module 100 outputs a second control signal to the image display drive control circuit 110 according to the first control instruction, and controls the image display drive control circuit 110 to output image data to the image display module for image display. In this embodiment, the image data output to the image display module for image display may be images collected by the image acquisition module.

At the same time, the control module 100 outputs a second control signal to the second photoelectric conversion unit 102 and the image capture drive control circuit to control the second photoelectric conversion unit 102 to be in the off state, stop converting the ambient light into electrical signals, that is, stop the image collection.

Please refer to FIG. 11, which is a schematic cross-sectional structure diagram along the line VI-VI as shown in FIG. 6 in the second embodiment of the application.

The image display module 12 includes a first photoelectric conversion unit 101 and a first reading circuit 121, and the first photoelectric conversion unit 101 is used to emit light to display images. The first reading circuit 121 is used to read the image data to be displayed from the image display drive control circuit 12A, and output a corresponding drive signal according to the image data to the first photoelectric conversion unit 101, and the first photoelectric conversion unit 101 emits according to the drive signal Light to display the image data.

The image acquisition module 13 includes a lens layer 131 and a second photoelectric conversion unit 102. The lens layer 131 is used to transmit ambient light outside the display panel 11 to the second photoelectric conversion unit 102. The second photoelectric conversion unit 102 is configured to convert the ambient light into an electrical signal, and the electrical signal is used to reconstruct an image corresponding to the ambient light. In this embodiment, the lens layer 131 is separated from the second photoelectric conversion unit 102 by a predetermined distance, so that the lens layer 131 converges a sufficient amount of collected ambient light to the second photoelectric conversion unit 102 shown.

In this embodiment, the lens layer 131 includes two states: a condenser lens state or a flat lens state.

When the lens layer 131 is in a plane mirror state, the lens layer 131 causes the incident ambient light to produce a phase shift angle of 0°, and the lens layer 131 is a plane mirror at this time.

When the lens layer 131 is in the condenser state, the lens layer 131 causes the incident ambient light to generate a certain phase shift angle, thereby converging the incident ambient light, and transmitting the concentrated light to the second photoelectric conversion unit 102.

The lens layer 102 is in the condensing lens state or the flat lens can be switched by receiving different voltages or different mechanical pressures.

Specifically, by applying different voltages to control the lens layer 131 to be in the condensing lens state or the flat lens can be: when the first voltage is applied to the lens layer 131, the refractive index of the lens layer 131 under the control of the first voltage is such that the incident The light does not produce a phase shift, and it is in the state of a flat lens, that is, the phase shift angle of the hyperplanar lens with respect to the incident ambient light is 0°; when the second voltage is applied to the lens layer 131, the lens layer 131 is in this state. The refractive index under the control of the first voltage causes the incident light to produce a certain phase shift, that is, the phase shift angle of the hyperplanar lens for the incident ambient light is

in,

Greater than 0, at this time, the hyperplane lens is a condenser lens.

Further, when the control module 100 receives the second instruction to control the first area A1 to be in the image display state, the first photoelectric conversion unit 101 emits light to display the image, the lens layer 131 is in the flat lens state, and the second The photoelectric conversion unit 102 stops converting the ambient light into the electrical signal.

When the control module 100 receives the first instruction to control the first area A1 to be in the image acquisition state, the first photoelectric conversion unit 101 stops emitting light, the lens layer 131 is in the condenser state, and the ambient light is concentrated and transmitted to the The second photoelectric conversion unit 102, the second photoelectric conversion unit 102 receives and collects the converged ambient light provided from the lens layer, and converts the ambient light into an electrical signal.

In this embodiment, the first photoelectric conversion unit 101 and the first reading circuit 121 are arranged upside down, and at the same time, the first photoelectric conversion unit 101 and the first reading circuit 121 on the lower side of the second photoelectric conversion unit 102 are arranged on the same layer. , The lens layer 131 is located directly above the layer structure where the second photoelectric conversion unit 102 is located.

In this embodiment, the first conversion unit 101 is an LED, OLED or μ-LED, and the second conversion unit 102 is a PD.

Please refer to FIGS. 12-13. FIG. 12 is a schematic diagram of the specific structure of the lens layer 131 shown in FIG. 11, and FIG. 13 is a schematic diagram of the optical path structure of the lens layer 131 in the condenser state.

As shown in Fig. 12, the lens layer 131 is a metamaterial lens, and the hyperplane lens in the lens layer 131 includes a plurality of unit structures U. By adjusting the size and arrangement of each unit structure U, the desired value can be accurately obtained. Arbitrary phase distribution.

Specifically, as shown in Fig. 13, according to the optical path difference required to reach the focal point f of the lens, the phase distribution required by the hyperplanar lens satisfies the formula (1):

In formula (1), the center point of the lens is the origin of the coordinate system, (x, y) is the coordinates of a certain position on the lens, f is the focal length,

Is the phase, and λ is the wavelength of the incident light.

The wavelength λ of the hyperplane lens can be controlled by externally applying different voltages or mechanically to control the phase. According to the aforementioned formula, the hyperplane lens can dynamically adjust the focal length of the lens layer 131 by adjusting the phase of the hyperplane lens.

The hyperplane lens adjusts the phase by applying different voltages, that is, adjusts the refractive index in the microstructure through different voltages, controls the phase shift of the incident light, and thus changes the focal length.

Specifically, when a light wave propagates in a medium, the transmission speed will be less than the free space wave speed, becoming c/n, where c is the free space wave speed and n is the refractive index of the medium. In the case of the same transmission distance, the refractive index of the material is different, the delay time of the light wave is different, and the phase difference produced is also different.

For example, as shown in FIG. 12, the equivalent refractive index of the structural unit of the hyperplanar lens can be adjusted by miniature varactor diodes or other active devices. In a medium with non-uniform refractive index, the change of adjacent refractive index of light wave is Δn, and the phase difference produced by the length of transmission d is formula (2):

In formula (2), λ is the free space wavelength.

In other embodiments of the present application, the phase adjustment of the hyperplane lens through the mechanical structure includes the use of a transparent elastic material as the substrate, and the different stretching degree of the elastic film is adjusted by applying different voltages, and the shape and superstructure of the lens are changed during the stretching process. The size of the period of the surface array makes the phase of the metasurface redistribute, thereby changing the focal length f.

It can be seen that the focal length f of the lens layer 131 can be adjusted in real time according to the requirements of the pixels of the captured image, so as to ensure the clarity and quality of the image captured by the image capturing module 13.

Please refer to FIGS. 14-15. FIG. 14 is a schematic diagram of the optical path of the lens layer in the flat lens mode as shown in FIG. 13, and FIG. 15 is a schematic diagram of the optical path of the lens layer in the condenser mode as shown in FIG.

As shown in FIG. 14, the hyperplane lens in the lens layer 131 makes the phase shift angle of the incident ambient light 0°, and the lens layer 131 is a plane lens. At this time, the light emitted from the first photoelectric conversion unit 101 is emitted from the lens layer to the outside of the display panel 11, that is, emitted from the light emitting surface to the external environment. Since the hyperplane mirror is a flat mirror at this time, it can ensure that the light inside the display panel 10 can be accurately emitted from the lens layer 131 and the light-emitting surface, without causing the first photoelectric conversion unit 101 as the sub-pixel to be emitted for execution. The light displayed in the image will not appear distortions and other abnormal phenomena.

As shown in Figure 15, the hyperplane lens in the lens layer 131 makes the phase shift angle of the incident ambient light

The lens layer 131 is in a condensing lens state. At this time, ambient light enters the lens layer from the light exit surface and enters the interior of the display panel 11. The lens layer condenses the ambient light at the same time, and transmits the condensed light to the second photoelectric conversion unit 102. Ensure that the collected images have better quality.

Please refer to FIG. 16, which is a schematic diagram of the connection of the driving display panel function module shown in FIG. 11.

As shown in FIG. 16, the control module 100 is electrically connected to the image display drive control circuit 12A, the lens layer 131, the second photoelectric conversion unit 102, and the image capture drive control circuit 13A. The control module 100 is used to receive control instructions provided by the input module. The control instructions shown include instructing the display device to perform image display or capture images in the first area A1 of the display interface AA.

When the control module 100 receives the first control instruction for image capture, the control module 100 controls the image display drive control circuit 12A to stop outputting image data to the image display module 12, and at the same time, controls the second photoelectric conversion unit 102 to receive The ambient light is converted into an electrical signal, and the image acquisition drive control circuit 13A processes the electrical signal and reconstructs an image corresponding to the ambient light.

When the control module 100 receives the second control instruction that the image acquisition is complete and the image display is required, the control module 100 controls the image display drive control circuit 12A to send the image data to be displayed to the image display module for image 12 display, and at the same time , Controlling the second photoelectric conversion unit 102 to stop converting the ambient light into electrical signals, that is, to stop image collection.

Specifically, the control module 100 is electrically connected to the lens layer 131 for providing different voltages to the lens layer 131 according to different control commands, and controlling the lens layer 131 to be in a condensing lens state or a flat lens state.

When the control module 100 receives the first instruction corresponding to the image display, the control module 100 provides a first voltage to the lens layer 131 to control the lens layer 131 to be in a flat lens state, and the first instruction represents the first The area needs to be in the image display state. When the control module 100 receives a second instruction corresponding to image capture, the control module 100 provides a second voltage to the lens layer 131 to control the lens layer 131 to be in a condensing lens state, and the second instruction represents the first The area needs to be in the image acquisition state.

Please refer to Figure 17-18. Figure 17 is a flowchart of driving the display panel for image display acquisition as shown in Figure 11 and Figure 16, and Figure 18 is the timing of driving the display panel for image display acquisition as shown in Figure 11 and Figure 16. Control diagram.

As shown in FIG. 17 and FIG. 4, when the first area A1 is smaller than the area of the display area AA, the steps of driving the display panel to perform image display collection include:

Step 1701: Receive a second control instruction instructing the first area to perform image collection. As shown in FIG. 18, the image acquisition time period Tc is entered from time t2, and the control module 100 receives a control instruction for image acquisition. It should be noted that between t1 and t2 before t2, the display interface AA is in the image display state corresponding to the image display time period Td.

In step 1703, the control module 100 outputs the second voltage to the lens layer 131 according to the second control command for image acquisition, so that the lens layer 131 is in the condenser state and condenses the ambient light; at the same time, the control module 100 outputs the first control signal to the second photoelectric conversion unit 102 and the image acquisition drive control circuit, controls the second photoelectric conversion unit 102 to turn on, and converts the received ambient light into electrical signals.

At the same time, the control module 100 outputs the first control signal to the first photoelectric conversion unit 101 and the image display drive control circuit 110 to control the image display drive control circuit 110 to stop outputting image data to the image display module, and to control the first photoelectric conversion The cell 101 does not emit light.

In step 1705, the image acquisition drive control circuit 13A processes the electrical signal and reconstructs the image corresponding to the ambient light. The image acquisition drive control circuit 13A performs amplification, noise reduction, and other transportation processing on the electrical signal to obtain an image corresponding to the ambient light.

Step 1707: Receive a first control instruction instructing the first area to perform image display. As shown in FIG. 18, the image display time period Td is entered at time t3, and the control module 100 receives the first control instruction for image display.

Step 1709, according to the first control instruction for image display, the control module 100 correspondingly outputs a second control signal to the image display drive control circuit 12A, and controls the image display drive control circuit 110 to output image data to the image display module 12 and the first photoelectric The conversion unit 101 causes the first photoelectric unit 101 to emit light according to image data and perform image display. At the same time, the control module 100 outputs the first voltage to the lens layer 131 so that the lens layer 131 is in a flat mirror state to assist in performing image display. In this embodiment, the image data output to the image display module 12 for image display may be an image acquired by the image acquisition module 13.

At the same time, the control module 100 outputs a second control signal to the second photoelectric conversion unit 102 and the image capture drive control circuit 13A to control the second photoelectric conversion unit 102 to turn off and stop converting ambient light into electrical signals, that is, stop image capture .

Please refer to Figure 19-20. Figure 19 is a flowchart of driving the display panel for image display acquisition as shown in Figure 11 and Figure 16, and Figure 20 is the timing of driving the display panel for image display acquisition as shown in Figure 11 and Figure 16. Control diagram.

As shown in FIG. 19 and FIG. 5, when the area of the first area AA is the same as that of the display area AA, the steps of driving the display panel 11 to perform image display collection include:

Step 1901: Receive a second control instruction for image collection. As shown in FIG. 20, the image acquisition time period Tc is entered from time t2, and the control module 100 receives a control instruction for image acquisition. It should be noted that between t1 and t2 before t2, the display interface AA is in the image display state corresponding to the image display time period Td.

During the image display time period Td, the control module 100 receives the first instruction corresponding to the image display, and the control module 100 provides the first voltage to the lens layer 131, controls the lens layer 131 to be in a flat lens state, and controls the second photoelectric The conversion unit 102 stops performing photoelectric conversion.

During the image acquisition time period Tc, the control module 100 receives the second instruction, the control module 100 alternately outputs the first voltage and the second voltage to the lens layer 131 according to the preset frequency, and at the same time, alternately outputs the first control according to the preset frequency The signal and the second control signal are sent to the first photoelectric conversion unit 101 and the second photoelectric conversion unit 102. That is, the image display module 12 and the image acquisition module 13 are controlled to alternately perform image display and image acquisition according to a preset frequency.

Specifically, the second voltage control lens layer 131 is in the condensing lens state to condense the ambient light, and the first voltage control lens layer 131 is in the flat lens state to assist in performing image display. At the same time, through the first control signal and the second control signal, The first photoelectric conversion unit 101 is controlled to not emit light or the emitted light emits light, and the second photoelectric conversion unit 102 is controlled to be turned on to perform photoelectric conversion or turned off to stop the conversion of ambient light into electrical signals, thereby respectively realizing image display and image display. collection.

In this embodiment, the preset frequency is 60 Hz, and this frequency allows the user to visually display the interface AA in an image display state.

Step 1907: Receive a first control instruction instructing the first area to perform image display. As shown in FIG. 20, at time t3, the image display time period Td is entered, and the control module 100 receives the first control instruction for image display.

Step 1909, according to the first control instruction for image display, the control module 100 correspondingly outputs a second control signal to the image display drive control circuit 12A, and controls the image display drive control circuit 110 to output image data to the image display module 12 and the first photoelectric The conversion unit 101 causes the first photoelectric unit 101 to emit light according to image data and perform image display. At the same time, the control module 100 outputs the first voltage to the lens layer 131 so that the lens layer 131 is in a flat mirror state to assist in performing image display. In this embodiment, the image data output to the image display module 12 for image display may be an image acquired by the image acquisition module 13.

Please refer to FIG. 21, which is a schematic diagram of the cross-sectional structure along the VI-VI line shown in FIG. 6 in the third embodiment of the present application.

The image display module 12 includes a first photoelectric conversion unit 101 and a first reading circuit 131. The first photoelectric conversion unit 101 is used to convert image data into light signals and output and display images, or convert ambient light into electrical signals to execute images collection.

The first reading circuit 131 is used to read the image data to be displayed from the image display drive control circuit 12A, and output a corresponding drive signal to the first photoelectric conversion unit according to the image data, and drive the first photoelectric conversion unit 101 to emit according to the drive signal The light can display the image data accordingly.

Alternatively, the electrical signal converted from the optical signal by the first photoelectric conversion unit 101 is received, and the electrical signal is transmitted to the image capture drive control circuit.

The image acquisition module 13 includes a lens layer 131 and a second photoelectric conversion unit 102. The lens layer 131 is used to transmit ambient light outside the display panel 11 to the second photoelectric conversion unit 102.

The second photoelectric conversion unit 102 is configured to convert the ambient light into an electric signal, and the electric signal is used to reconstruct an image corresponding to the ambient light, or convert it into an optical signal according to image data, and emit a display image.

Wherein, the first photoelectric conversion unit 101 and the second photoelectric conversion unit 102 emit light and receive light at different times.

In this embodiment, the first photoelectric conversion unit 101 and the second photoelectric conversion unit 102 are arranged side by side in the same layer, and the lens layer 131 covers the surfaces of the first photoelectric conversion unit 101 and the second photoelectric conversion unit 102. At the same time, the reading circuit 121 Correspondingly arranged on the surface of the first photoelectric conversion unit 101 and the second photoelectric conversion unit 102 away from the lens layer 131, and are connected with the first photoelectric conversion unit 101 and the second photoelectric conversion unit 102 to transmit the read image data to the first photoelectric conversion unit 101 and the second photoelectric conversion unit 102. The photoelectric conversion unit 101 and the second photoelectric conversion unit 102 perform photoelectric conversion.

In this embodiment, the lens layer 131 includes two states: a condenser lens state or a flat lens state. When the lens layer 131 is in a plane mirror state, the phase offset angle of the hyperplane lens in the lens layer 131 is 0°, and the lens layer 131 is a plane lens.

When the lens layer 131 is in the condenser state, the lens layer 131 converges and transmits the ambient light to the second photoelectric conversion unit 102.

The lens layer 131 is in a condensing lens state or a flat lens can be switched by receiving different voltages.

Specifically, a first voltage is provided to the lens layer 131, and the lens layer 131 is controlled to be in a flat lens state. The hyperplane lens makes the incident ambient light phase shift angle of 0° and is in the flat lens state; the second voltage controls the hyperplane The lens makes the incident ambient light phase shift angle by

The plane lens has a condenser lens.

When the first area A1 is in an image display state, the first photoelectric conversion unit 101 and the second photoelectric conversion unit 102 emit light to display an image, and the lens layer 131 is in a flat lens state.

When the first area A1 is in the image acquisition state, the first photoelectric conversion unit 101 and the second photoelectric conversion unit 102 stop emitting light, the lens layer 131 is in the condenser state, and the ambient light is concentrated and transmitted to the first The photoelectric conversion unit 101 and the second photoelectric conversion unit 102, the first photoelectric conversion unit 101 and the second photoelectric conversion unit 102 receive and collect the converged ambient light provided from the lens layer 131, and combine the ambient light The light is converted into electrical signals and provided to the reading circuit 121.

In this embodiment, the first conversion unit 101 and the second conversion unit 102 are both μ-LEDs, which can time-sharing convert electrical signals into optical signals to perform image display or convert ambient light into electrical signals to perform image acquisition.

Please refer to FIG. 22, which is a schematic diagram of the connection of the driving display panel function module shown in FIG. 21.

As shown in FIG. 22, the control module 100 is electrically connected to the image display drive control circuit 110, the lens layer, the image display drive control circuit 120, the first photoelectric conversion unit 101 and the second photoelectric conversion unit 102.

The control instruction can be the user's touch screen in the input module. For example, the display interface AA executes image display at the current moment. When the user needs to take a picture, the camera application program on the touch screen is operated and triggered to output the control instruction for image collection to the control module. Group 100.

Further, when the image acquisition is completed and the user performs a corresponding touch operation again, for example, when the user clicks the position where the "photograph" icon is located, the control instruction for image display is output to the control module 100 after the image acquisition is completed.

The reading circuit 121 is electrically connected to the image display driving control circuit 110 and the image display driving control circuit 120 respectively.

When the control module 100 receives the first control instruction for image capture, the control module 100 controls the image display drive control circuit 110 to stop outputting image data to the image display module, and at the same time, controls the lens layer 131 to be in the condenser state, and controls the first A photoelectric conversion unit 101 and a second photoelectric conversion unit 102 convert the received ambient light into electrical signals, and the image acquisition drive control circuit processes the electrical signals and reconstructs an image corresponding to the ambient light.

When the control module 100 receives the second control instruction that the image acquisition is completed and the image display needs to be performed, the control module 100 controls the image display drive control circuit 110 to send the image data to be displayed to the image display module 12 for image display, and at the same time , Controlling the lens layer 131 to be in a plane mirror state, and controlling the first photoelectric conversion unit 101 and the second photoelectric conversion unit 102 to stop converting ambient light into electrical signals, that is, stop image collection.

Specifically, the control module 100 is electrically connected to the lens layer 131 for providing different voltages to the lens layer 131 according to different control commands and controlling the lens layer 131 to be in a condensing lens state or a flat lens state.

When the control module 100 receives the first command, it provides a first voltage to the lens layer 131 to control the lens layer 131 to be in a flat lens state. The first command indicates that the first area needs to be in an image display state.

When the control module 100 receives the second instruction, it provides a second voltage to the lens layer 131 to control the lens layer 131 to be in the condensing lens state. The second instruction indicates that the first area needs to be in the image acquisition state.

Please refer to FIG. 23. FIG. 23 is a schematic diagram of timing control for driving the display panel to perform image display acquisition as shown in FIG. 11 and FIG. 16.

As shown in FIG. 23, when the first area is smaller than the area of the display area.

The control module 100 receives the second control instruction for image collection. As shown in FIG. 23, at time t2, the control module 100 receives a second control instruction instructing the first area to enter the image capture, and the first area enters the image capture period Tc. It should be noted that the display interface AA is in the image display state between t1-t1 included in the image display time period Td before t2.

The control module 100 outputs a second voltage to the lens layer 131 according to the first control instruction, so that the lens layer 131 is in the condenser state to condense light from the ambient light; outputs the first control signal to the second photoelectric conversion unit 102 and the image capture driver The control circuit controls the first photoelectric conversion unit 101 and the second photoelectric conversion unit 102 to be in a photosensitive state to convert the received ambient light into electrical signals.

The image acquisition drive control circuit 13A processes the electrical signal and reconstructs the image corresponding to the ambient light.

The control module 100 receives a control command for image display. As shown in FIG. 23, at time t3, the control module 100 receives a first control instruction instructing the first area to perform image display.

According to the first control instruction, the control module 100 outputs a second control signal to the image display drive control circuit 110, and controls the image display drive control circuit 110 to output image data to the image display module for image display. In this embodiment, the image data output to the image display module for image display may be images collected by the image acquisition module.

At the same time, the control module 100 outputs the first voltage to the lens layer 131 so that the lens layer 131 is in a flat mirror state to assist in image display; and outputs a second control signal to the second photoelectric conversion unit 101 and the second photoelectric conversion unit 102 to Both are controlled to emit light to perform image display. In this embodiment, the first control signal and the second control signal can multiplex the first voltage and the second voltage to perform control of the first photoelectric conversion unit 101 and the second photoelectric conversion unit 102.

Please refer to FIG. 24. FIG. 24 is a schematic diagram of timing control for driving the display panel to perform image display acquisition as shown in FIG. 11 and FIG. 16. As shown in FIG. 24, when the area of the first area and the display area are the same:

During the image display time period Tc, the control module 100 receives the first command, and the control module 100 provides the first voltage to the lens layer 131, controls the lens layer 131 to be in a flat lens state to assist students in displaying, and at the same time controls the first The photoelectric conversion unit 101 and the second photoelectric conversion unit 102 emit light at the same time to display image data.

During the image acquisition time period Td, the control module 100 receives the second instruction, and the control module 100 alternately outputs the first voltage and the second voltage according to the preset frequency. The second voltage controls the lens layer 131 to be in the condensing lens state to condense the ambient light, while controlling the first photoelectric conversion unit 101 and the second photoelectric conversion unit 102 to be in a photosensitive state to convert the concentrated ambient light into electrical signals; the first voltage The lens layer 131 is controlled to be in a flat mirror state to assist in image display, and at the same time, the first photoelectric conversion unit 101 and the second photoelectric conversion unit 102 are controlled to emit light to perform image display. In this embodiment, the preset frequency is 60 Hz, and this frequency allows the user to visually display the interface AA in an image display state.

The above is a detailed introduction to a pixel circuit provided by the embodiments of the present application, and specific examples are used in this article to illustrate the principles and embodiments of the present application. The descriptions of the above embodiments are only used to help understand the method and Its core idea; at the same time, for those of ordinary skill in the art, according to the idea of this application, there will be changes in the specific embodiments and scope of application. limit.

Claims

A display panel includes a display area, the display area includes a plurality of pixel units arranged in a matrix, and each pixel unit includes at least one first photoelectric conversion unit for emitting light to display an image, wherein the An image acquisition module is arranged between the pixel units in the first area in the display area,

The image acquisition module includes a lens layer and a second photoelectric conversion unit, the lens layer is used to transmit ambient light outside the display panel to the second photoelectric conversion unit, the second photoelectric conversion unit is used to In the acquisition state, the ambient light is converted into an electrical signal, and the electrical signal is used to reconstruct an image corresponding to the ambient light, wherein the light emitted by the first photoelectric conversion unit and the second photoelectric conversion unit output the electrical signal. The signal is time-sharing.
The display panel of claim 1, wherein:

The first area includes an image display state and an image acquisition state. When the first area is in the image display state, the first photoelectric conversion unit emits light to perform image display, and the second photoelectric conversion unit stops outputting The electrical signal; when the first area is in the image acquisition state, the first photoelectric conversion unit stops emitting light, and the second photoelectric conversion unit converts the ambient light into the electrical signal;

The lens layer is a condensing lens, which is used to converge and transmit the ambient light to the second photoelectric conversion unit. When the first area is in an image capture state, the second photoelectric conversion unit receives and collects it from the second photoelectric conversion unit. The converged ambient light provided by the lens layer converts the ambient light into an electrical signal.
4. The display panel of claim 1, wherein the first photoelectric conversion unit and the lens layer are arranged side by side in the same layer, and the lens layer faces and covers the second photoelectric conversion unit.
The display panel of claim 1, wherein the lens layer includes a condensing lens state and a flat lens state,

When the first area is in the image display state, the first photoelectric conversion unit emits light to display the image, the lens layer is in the flat lens state, and the second photoelectric conversion unit stops converting the ambient light into all The electrical signal;

When the first area is in the image capturing state, the first photoelectric conversion unit stops emitting light, the lens layer is in the condenser state, and the ambient light is converged and transmitted to the second photoelectric conversion unit. The second photoelectric conversion unit receives and collects the converged ambient light provided from the lens layer, and converts the ambient light into an electrical signal.
The display panel according to claim 4, wherein the display panel further comprises a control module, the control module is connected to the lens layer, and the control module is used to output different voltages to the The lens layer and controlling the lens layer to be in a condensing lens state or a flat lens state;

When the control module receives the first instruction, the control module outputs a first voltage to the lens layer and controls the lens layer to be in a flat lens state, and the first instruction is used to instruct the first Area for image display; or

When the control module receives the second instruction, the control module outputs a second voltage to the lens layer and controls the lens layer to be in the condensing lens state, and the second instruction is used to instruct the first Area for image acquisition.
The display panel according to claim 4 or 5, wherein:

The lens layer is a hyperplane lens,

The first voltage controls the phase shift angle of the ambient light entering the hyperplane lens to 0°, and the hyperplane lens is a plane mirror;

The second voltage controls the phase shift angle of the ambient light entering the hyperplane lens to be
The hyperplane lens has a condenser lens for condensing and transmitting the ambient light to the second photoelectric conversion unit, and the phase shift angle
It is used to adjust the focal length required for the currently acquired image.
7. The display panel of claim 6, wherein when the shape and area of the first area and the display area are the same,

The control module receives the first instruction, the control module provides a first voltage to the lens layer, controls the lens layer to be in a flat lens state, and at the same time controls the second photoelectric conversion unit to stop performing photoelectric conversion;

The control module receives the second instruction, and the control module alternately outputs the first voltage and the second voltage according to a preset frequency,

The second voltage controls the first photoelectric conversion unit to stop emitting light, and at the same time controls the lens layer to be in the condensing lens state, and controls the second photoelectric conversion unit to control the converged environment received from the lens layer The light performs photoelectric conversion.
7. The display panel of claim 6, wherein when the first area is smaller than the area of the display area,

The control module receives the first instruction, the control module provides a first voltage to the lens layer, controls the lens layer to be in a flat lens state, and at the same time controls the second photoelectric conversion unit to stop performing photoelectric conversion;

The control module receives a second instruction, the control module outputs a second voltage, the second voltage controls the first photoelectric conversion unit to stop emitting light, and at the same time controls the lens layer to be in a condensing lens state, and The second photoelectric conversion unit is controlled to perform photoelectric conversion on the condensed ambient light received from the lens layer.
8. The display panel according to claim 8, wherein when the control module receives the first instruction again, the display panel exits the image acquisition state and enters the image display state.
The display panel according to any one of claims 4-9, wherein the first photoelectric conversion unit and the second photoelectric conversion unit are arranged side by side on the same layer, and the lens layer is directly opposite and covers the first photoelectric conversion unit. Two photoelectric conversion unit.
The display panel of claim 6, wherein:

The first photoelectric conversion unit is further configured to receive the ambient light in an image acquisition state and convert the ambient light into electrical signals to perform image acquisition;

The second photoelectric conversion unit is also used for converting image data into light signals and emitting them to display images in an image display state;

The first photoelectric conversion unit and the second photoelectric conversion unit are micro light emitting diodes.
The display panel of claim 11, wherein the first photoelectric conversion unit and the second photoelectric conversion unit are arranged side by side on the same layer, and the lens layer covers the first conversion unit and the second photoelectric conversion unit. Photoelectric conversion unit.
The display panel according to claim 11 or 12, wherein:

When the area of the first area and the display area are the same,

The control module receives the first instruction, the control module provides a first voltage to the lens layer, controls the lens layer to be in a flat lens state, and controls the first photoelectric conversion unit and the second photoelectric conversion unit at the same time. The photoelectric conversion unit emits light at the same time to display images;

The control module receives a second instruction, the control module alternately outputs a first voltage and a second voltage according to a preset frequency, and the second voltage controls the lens layer to be in a condensing lens state, and controls the first The photoelectric conversion unit and the second photoelectric conversion order stop emitting light, and at the same time perform photoelectric conversion of the condensed ambient light received from the lens layer.
The display panel according to claim 11 or 12, wherein:

When the first area is smaller than the area of the display area,

The control module receives the first instruction, the control module provides a first voltage to the lens layer, controls the lens layer to be in a flat lens state, and controls the first photoelectric conversion unit and the second photoelectric conversion unit at the same time. The photoelectric conversion unit emits light at the same time to display images;

The control module receives the second instruction, and the control module outputs the second voltage,

The second voltage controls the lens layer to be in a condensing lens state, controls the first photoelectric conversion unit and the second photoelectric conversion order to stop emitting light, and at the same time receives the converged environment from the lens layer The light performs photoelectric conversion.
A display terminal, characterized by comprising an input module and the display panel of any one of the foregoing, the input module is used to accept a control command input by a user's operation, and generate the first control command according to the control command. A control instruction and the second control instruction.
A display device, characterized by comprising the display panel described in any one of the foregoing.