阅读说明：本技术 显示面板及装置、通信控制方法、电子设备和存储介质 (Display panel, display device, communication control method, electronic apparatus, and storage medium ) 是由 李扬冰 王雷 王佳斌 赵方圆 黄睿 朱海彬 郭玉珍 李必奇 王伟杰 王明东 于 2021-07-20 设计创作，主要内容包括：本申请公开了一种显示面板及装置、通信控制方法、电子设备和存储介质。显示面板包括发光像素阵列、感光像素阵列、发光像素驱动阵列和感光像素驱动阵列。发光像素阵列包括多个发光元件；感光像素阵列包括多个感光元件。发光像素驱动阵列包括多个向对应的发光元件提供驱动信号的发光像素驱动电路,通过驱动信号控制发光元件发射光信号以传输数据信息；感光像素驱动阵列包括多个根据对应的感光元件采集的光信号生成电信号以接收数据信息的感光像素驱动电路。本申请的显示面板具有分布式多阵列光通信收发区域,可以根据通道的状态监控和信息传输需求选择最佳通道和通道数进行传输,拓展带宽,提高传输速率和信噪比,实现真正意义上的通信显示一体化。(The application discloses a display panel, a display device, a communication control method, an electronic device and a storage medium. The display panel includes an array of light emitting pixels, an array of light sensing pixels, an array of light emitting pixel drivers, and an array of light sensing pixel drivers. The light emitting pixel array includes a plurality of light emitting elements; the photosensitive pixel array includes a plurality of photosensitive elements. The light-emitting pixel driving array comprises a plurality of light-emitting pixel driving circuits for providing driving signals to corresponding light-emitting elements, and the light-emitting elements are controlled to emit light signals through the driving signals so as to transmit data information; the photosensitive pixel driving array comprises a plurality of photosensitive pixel driving circuits which generate electric signals according to optical signals collected by corresponding photosensitive elements so as to receive data information. The display panel has a distributed multi-array optical communication transceiving area, can select the optimal channel and the channel number for transmission according to the state monitoring and information transmission requirements of the channel, expands the bandwidth, improves the transmission rate and the signal to noise ratio, and realizes the communication display integration in the true sense.)

1. A display panel, comprising:

a light emitting pixel array comprising a plurality of light emitting elements;

a light-sensitive pixel array comprising a plurality of light-sensitive elements;

a light emitting pixel driving array including a plurality of light emitting pixel driving circuits providing driving signals to the corresponding light emitting elements, the light emitting elements being controlled to emit light signals by the driving signals to transmit data information; and

and the photosensitive pixel driving array comprises a plurality of photosensitive pixel driving circuits, and the photosensitive pixel driving circuits generate electric signals according to the corresponding optical signals collected by the photosensitive elements so as to receive the data information.

2. The display panel according to claim 1, wherein the display panel comprises a plurality of pixel units, each pixel unit comprising at least one of the light emitting elements and at least one of the light sensing elements.

3. The display panel according to claim 1, wherein the light emitting elements are arranged in a column extending direction, the light receiving elements are arranged in a column extending direction, and the light emitting elements and the light receiving elements are alternately arranged in a row extending direction; or

The light emitting elements are arranged along a row extending direction, the photosensitive elements are arranged along the row extending direction, and the light emitting elements and the photosensitive elements are alternately arranged in a column extending direction; or

The light emitting elements and the light sensing elements are alternately arranged in both a row extending direction and a column extending direction.

4. The display panel of claim 1, wherein the light-sensitive pixel drive circuit comprises:

the first pole of the amplifying transistor is connected with a first power supply end, the grid electrode of the amplifying transistor is connected with the cathode of the photosensitive element, and the anode of the photosensitive element is connected with a bias power supply end;

an IV conversion circuit connected to the second pole of the amplifying transistor;

a load transistor, a first pole of the load transistor is connected with a reference power supply, a grid electrode of the load transistor is connected with a reset control end, and a second pole of the load transistor is connected with a grid electrode of the amplifying transistor;

and the capacitor is connected with the anode and the cathode of the photosensitive element.

5. The display panel according to claim 4, wherein the light-sensitive pixel driving circuit further comprises an amplification filter circuit and an analog-to-digital conversion circuit, the amplification filter circuit connecting the IV conversion circuit and the analog-to-digital conversion circuit.

6. The display panel of claim 1, wherein the display panel comprises a display drive control module that provides a light emission data signal and a high frequency control signal to the light emitting pixel drive circuit, the light emitting pixel drive circuit emitting a light signal in accordance with the light emission data signal and the high frequency control signal.

7. The display panel according to claim 1, wherein the display panel comprises a light information acquisition module, and the light information acquisition module analyzes the electrical signal to obtain the data information.

8. A display device characterized by comprising the display panel according to any one of claims 1 to 7.

9. A communication control method for the display panel according to any one of claims 1 to 7, characterized by comprising:

controlling all the photosensitive pixel driving circuits in the display panel to work, and generating an electric signal according to an optical signal collected by the photosensitive pixel;

demodulating and decoding the optical signals generated by the photosensitive pixel driving circuits to generate bit stream information;

calculating corresponding signal intensity and signal-to-noise ratio according to the electric signals generated by the photosensitive display driving circuits;

processing the bit stream information and determining the photosensitive element to be transmitted according to the signal intensity and the signal-to-noise ratio;

and controlling a photosensitive pixel driving circuit corresponding to the photosensitive element to be transmitted to work so as to receive the data information.

10. The communication control method according to claim 9, characterized by further comprising:

controlling all of the light emitting elements in the display panel to emit light signals to transmit broadcast information while controlling all of the light sensing pixel driving circuits in the display panel to operate.

11. The communication control method according to claim 10, characterized by comprising:

and after the data information is received, retransmitting the broadcast information.

12. The communication control method according to claim 9, wherein the determining the photosensitive pixel to be transmitted according to the signal strength and the signal-to-noise ratio includes:

under the condition that the signal intensity is not smaller than a first threshold value and the signal-to-noise ratio is not smaller than a second threshold value, determining the corresponding photosensitive element as the photosensitive element to be transmitted;

determining that the corresponding photosensitive element is the non-transmitted photosensitive element when the signal intensity is smaller than a first threshold or the signal-to-noise ratio is smaller than a second threshold;

the communication control method includes:

and controlling the photosensitive pixel driving circuit corresponding to the photosensitive element which is not transmitted to stop working.

13. The communication control method according to claim 9, characterized by comprising:

and determining the light-emitting element to be transmitted according to the signal intensity and the signal-to-noise ratio.

14. The communication control method according to claim 12, wherein the determining the light emitting element to be transmitted according to the signal intensity and the signal-to-noise ratio includes:

under the condition that the signal intensity is not smaller than a first threshold value and the signal-to-noise ratio is not smaller than a second threshold value, determining that the corresponding light-emitting element is the light-emitting element to be transmitted;

determining the corresponding light-emitting element as the non-transmitted light-emitting element when the signal intensity is smaller than a first threshold or the signal-to-noise ratio is smaller than a second threshold;

the communication control method includes:

and controlling the non-transmitted light-emitting elements to emit light normally.

15. An electronic device comprising a processor and a memory, the memory storing a computer program that, when executed by the processor, implements the communication control method of any one of claims 9 to 14.

16. A non-transitory computer-readable storage medium of a computer program, characterized in that, when the computer program is executed by one or more processors, the communication control method according to any one of claims 9 to 14 is implemented.

Technical Field

The present disclosure relates to the field of display technologies, and in particular, to a display panel, a display device, a communication control method, an electronic apparatus, and a storage medium.

Background

With the development of wireless communication technology, limited wireless spectrum resources are increasingly tense, many frequency bands are occupied, however, visible light communication resources are rich, the bandwidth is 10000 times of the bandwidth of wireless electromagnetic waves, the transmission rate of visible light communication is 50 times of 5G, the existing LED lamp is used as a transmitting source, the photosensitive Sensor is used as a receiver, expensive base station equipment is not needed, the cost is low, and the wireless communication system is free from various advantages such as electromagnetic interference and the like, and is paid attention to people. In addition, since visible light communication modulates the brightness of light at a high frequency that cannot be recognized by the human eye, it is possible to integrate illumination and communication, and integrate communication and display.

In the current technologies and products, a separate visible light receiving module is mostly mechanically integrated into a display device, and is not a communication and display integrated device in the true sense.

Disclosure of Invention

In view of the above, the present invention is directed to solving, at least to some extent, one of the problems in the related art. Therefore, an object of the present application is to provide a display panel and device, a communication control method, an electronic apparatus, and a storage medium.

The embodiment of the application also provides a display panel. The display panel includes: the pixel array comprises a light-emitting pixel array, a photosensitive pixel array, a light-emitting pixel driving array and a photosensitive pixel driving array. The light emitting pixel array includes a plurality of light emitting elements; the photosensitive pixel array comprises a plurality of photosensitive elements; the light emitting pixel driving array comprises a plurality of light emitting pixel driving circuits, the light emitting pixel driving circuits provide driving signals for the corresponding light emitting elements, and the light emitting elements are controlled to emit light signals through the driving signals to transmit data information; the photosensitive pixel driving array comprises a plurality of photosensitive pixel driving circuits, and the photosensitive pixel driving circuits generate electric signals according to corresponding optical signals collected by the photosensitive elements so as to receive the data information.

In some embodiments, the display panel includes a plurality of pixel units, each pixel unit including at least one of the light emitting elements and at least one of the light sensing elements.

In some embodiments, the light emitting elements are arranged along a column extending direction, the light sensing elements are arranged along a column extending direction, and the light emitting elements and the light sensing elements are alternately arranged in a row extending direction; or the light emitting elements are arranged along the row extending direction, the photosensitive elements are arranged along the row extending direction, and the light emitting elements and the photosensitive elements are alternately arranged in the column extending direction; or the light emitting elements and the light sensing elements are alternately arranged in both a row extending direction and a column extending direction.

In some embodiments, the photosensitive pixel driving circuit includes an amplifying transistor, an IV conversion circuit, a load transistor, and a capacitor. The first electrode of the amplifying transistor is connected with a first power supply end, the grid electrode of the amplifying transistor is connected with the cathode of the photosensitive element, and the anode of the photosensitive element is connected with a bias power supply end; the IV conversion circuit is connected with the second pole of the amplifying transistor; a first pole of the load transistor is connected with a reference power supply, a grid electrode of the load transistor is connected with a reset control end, and a second pole of the load transistor is connected with a grid electrode of the amplifying transistor; the capacitor is connected with the anode and the cathode of the photosensitive element.

In some embodiments, the photosensitive pixel driving circuit further includes an amplification filter circuit and an analog-to-digital conversion circuit, the amplification filter circuit connecting the IV conversion circuit and the analog-to-digital conversion circuit.

In some embodiments, the display panel includes a display drive control module that provides a light emission data signal and a high frequency control signal to the light emitting pixel drive circuit, which emits a light signal in accordance with the light emission data signal and the high frequency control signal.

In some embodiments, the display panel includes an optical information acquisition module, and the optical information acquisition module analyzes the electrical signal to acquire the data information.

The application also provides a display device. The display device includes the display panel according to any one of the above embodiments.

The present application also provides a communication control method for the display panel described in any one of the above embodiments. The communication control method includes: controlling all the photosensitive pixel driving circuits in the display panel to work, and generating an electric signal according to an optical signal collected by the photosensitive pixel; demodulating and decoding the optical signals generated by the photosensitive pixel driving circuits to generate bit stream information; calculating corresponding signal intensity and signal-to-noise ratio according to the electric signals generated by the photosensitive display driving circuits; processing the bit stream information and determining the photosensitive element to be transmitted according to the signal intensity and the signal-to-noise ratio; and controlling a photosensitive pixel driving circuit corresponding to the photosensitive element to be transmitted to work so as to receive the data information.

In some embodiments, the communication control method further comprises: controlling all of the light emitting elements in the display panel to emit light signals to transmit broadcast information while controlling all of the light sensing pixel driving circuits in the display panel to operate.

In some embodiments, the communication control method includes: and after the data information is received, retransmitting the broadcast information.

In some embodiments, the determining the photosensitive pixel to be transmitted from the signal strength and the signal-to-noise ratio comprises: under the condition that the signal intensity is not smaller than a first threshold value and the signal-to-noise ratio is not smaller than a second threshold value, determining the corresponding photosensitive element as the photosensitive element to be transmitted; determining that the corresponding photosensitive element is the non-transmitted photosensitive element when the signal intensity is smaller than a first threshold or the signal-to-noise ratio is smaller than a second threshold; the communication control method includes: and controlling the photosensitive pixel driving circuit corresponding to the photosensitive element which is not transmitted to stop working.

In some embodiments, the communication control method includes: and determining the light-emitting element to be transmitted according to the signal intensity and the signal-to-noise ratio.

In some embodiments, the determining the light-emitting element to be transmitted from the signal strength and the signal-to-noise ratio comprises: under the condition that the signal intensity is not smaller than a first threshold value and the signal-to-noise ratio is not smaller than a second threshold value, determining that the corresponding light-emitting element is the light-emitting element to be transmitted; determining the corresponding light-emitting element as the non-transmitted light-emitting element when the signal intensity is smaller than a first threshold or the signal-to-noise ratio is smaller than a second threshold; the communication control method includes: and controlling the non-transmitted light-emitting elements to emit light normally.

The application also provides an electronic device. The electronic device comprises a processor and a memory, the memory storing a computer program which, when executed by the processor, implements the communication control method of any one of the above embodiments.

The present application also provides a non-transitory computer-readable storage medium of a computer program. The computer program, when executed by one or more processors, implements the communication control method of any one of the above embodiments.

The display panel has the distributed multi-array optical communication transceiving areas, the optimal channel and the channel number can be selected for transmission according to the state monitoring and information transmission requirements of the channels, the bandwidth is expanded, the transmission rate and the signal to noise ratio are improved, and the communication display integration in the true sense is realized.

Additional aspects and advantages of the present application will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the present application.

Drawings

The foregoing and/or additional aspects and advantages of the present application will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

FIG. 1 is a schematic structural diagram of a display panel according to some embodiments of the present disclosure;

FIG. 2 is a schematic diagram of a distributed system of display panels according to some embodiments of the present application;

FIG. 3 is a schematic diagram of a scenario of data transmission between display panels according to some embodiments of the present application;

FIG. 4 is a schematic structural diagram of an array arrangement of pixel units in a display panel according to some embodiments of the present disclosure;

FIG. 5 is a schematic structural diagram of an array arrangement of pixel units in a display panel according to some embodiments of the present disclosure;

FIG. 6 is a schematic structural diagram of an array arrangement of pixel units in a display panel according to some embodiments of the present disclosure;

FIG. 7 is a circuit diagram of a driving circuit for a light-emitting pixel in a display panel according to some embodiments of the present disclosure;

FIG. 8 is a circuit diagram of a sensing pixel driving circuit in a display panel according to some embodiments of the present application;

FIG. 9 is a diagram illustrating optical signals resolved by a light-sensitive pixel driving circuit in a display panel according to some embodiments of the present disclosure;

FIG. 10 is a schematic diagram of a display device according to certain embodiments of the present application;

FIG. 11 is a flow chart diagram illustrating a communication control method according to some embodiments of the present application;

FIG. 12 is a schematic block diagram of a communication control apparatus according to some embodiments of the present application;

FIG. 13 is a schematic workflow diagram of a communication control apparatus according to certain embodiments of the present application;

FIG. 14 is a circuit diagram of channel selection hardware circuitry within a display panel in accordance with certain implementations of the present application;

FIG. 15 is a flow chart diagram of a communication control method according to some embodiments of the present application;

FIG. 16 is a flow chart diagram of a communication control method according to some embodiments of the present application;

fig. 17 is a schematic structural diagram of a communication control apparatus according to some embodiments of the present application;

FIG. 18 is a schematic flow chart diagram of a communication control method according to some embodiments of the present application;

fig. 19 is a schematic configuration diagram of a determination module in the communication control apparatus according to some embodiments of the present application;

FIG. 20 is a flow chart diagram of a communication control method according to some embodiments of the present application;

FIG. 21 is a flow chart diagram of a communication control method according to some embodiments of the present application;

FIG. 22 is a schematic structural diagram of an electronic device according to some embodiments of the present application;

FIG. 23 is a block diagram of a computer-readable storage medium according to some embodiments of the present application.

Detailed Description

Reference will now be made in detail to embodiments of the present application, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative and are only for the purpose of explaining the present application and are not to be construed as limiting the present application.

In the description of the present application, it is to be understood that the terms "first", "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implying any number of technical features indicated. Thus, features defined as "first", "second", may explicitly or implicitly include one or more of the described features. In the description of the present application, "a plurality" means two or more unless specifically defined otherwise.

In the description of the present application, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; may be mechanically connected, may be electrically connected or may be in communication with each other; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.

The following disclosure provides many different embodiments or examples for implementing different features of the application. In order to simplify the disclosure of the present application, specific example components and arrangements are described below. Of course, they are merely examples and are not intended to limit the present application. Moreover, the present application may repeat reference numerals and/or letters in the various examples, such repetition is for the purpose of simplicity and clarity and does not in itself dictate a relationship between the various embodiments and/or configurations discussed.

Reference will now be made in detail to embodiments of the present application, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative and are only for the purpose of explaining the present application and are not to be construed as limiting the present application.

In the current technologies and products, a separate visible light receiving module is mostly mechanically integrated into a display device, and is not a communication and display integrated device in the true sense.

As can be appreciated, the visible light communication may use the LED lamp as a transmitter and the photosensitive sensor as a receiver, and has many advantages such as high frequency spectrum bandwidth, small electromagnetic interference, high privacy security, fast response speed, and high information transmission rate compared with the microwave communication, and is receiving much attention. Since display and lighting are complementary at present, there is an urgent need for a communication display integrated device formed by integrating a separate visible light receiving module into a display device in a true sense.

In view of the above, the present application provides a solution for selecting a multi-array optical communication channel integrated with a screen, and referring to fig. 1, the present application provides a display panel 100. Display panel 100 includes an array of light-emitting pixels 110, an array of light-sensitive pixels 120, an array of light-emitting pixel drivers 130, and an array of light-sensitive pixel drivers 140. The light emitting pixel array 110 includes a plurality of light emitting elements 111. The photosensitive pixel array 120 includes a plurality of photosensitive elements 121. The light emitting pixel driving array 130 includes a plurality of light emitting pixel driving circuits 131, and the light emitting pixel driving circuits 131 supply driving signals to the corresponding light emitting elements 111, and control the light emitting elements 111 to emit light signals by the driving signals to transmit data information. The photosensitive pixel driving array 140 includes a plurality of photosensitive pixel driving circuits 141, and the photosensitive pixel driving circuits 141 generate electrical signals according to the optical signals collected by the corresponding photosensitive elements 121 to receive data information.

Specifically, the light emitting element 111 may be an LED lamp, which is a transmitter that emits a light signal. The light sensing element 121 may be a light sensor, which is a receiver that receives a light signal.

It can be understood that the present patent establishes pixel-level distributed transceiving areas on the display panel 100 based on a standard communication protocol, and provides transceiving channels for communication information transfer. The structure of the distributed system inside the display panel 100 of the present application is shown in fig. 2, and the distributed system includes two parts, one part is an optical information transceiver integrated inside the display panel 100 and includes two modules, namely, a high-frequency display driving control module and an optical information acquisition module, and the other part is a communication data processing module based on a communication standard protocol and includes a processing module for physical layer encoding and decoding and a network protocol layer scheduling maintenance module.

Specifically, the high-frequency display driving module provides an optical information transmitting channel for communication information transmission, a high-frequency signal is superposed on the basis of a required direct-current signal for display, and the high-frequency signal is not easy to be perceived by human eyes to change due to the high frequency, so that high-speed transmission of optical information can be performed while normal display is not influenced. It can be understood that the coded '0' or '1' code stream of the communication information realizes the optical transmission of the communication information through the high-low alternating current conversion of the high-frequency display driving level.

The optical information acquisition module can perform real-time photoelectric conversion and amplification on high-frequency optical information subjected to brightness conversion, demodulate electric information of '0' and '1' by the comparator, and then send the electric information to the communication data processing module for processing.

The communication data processing module comprises a physical layer coding and decoding processing module (hereinafter referred to as physical layer module) and a network protocol layer scheduling maintenance module (hereinafter referred to as protocol layer module). The physical layer module is divided into a coding demodulation module and a demodulation decoding module, and mainly carries out corresponding modulation and coding processing on a high-frequency information stream according to a standard communication protocol and sends the high-frequency information stream to the display driving module, and the demodulation decoding module recovers an original information bit stream through demodulation and decoding. The protocol layer module can evaluate the channel quality and maintain the network state according to the information transmitted by the physical layer, and schedule resources and send service information according to the channel and the network state.

The display panel is provided with the distributed multi-array optical communication transceiving area, the optimal channel and the channel number are selected for transmission according to the state monitoring and information transmission requirements of the channels, the bandwidth is expanded, the transmission rate and the signal to noise ratio are improved, and the communication display integration in the true sense is realized.

In some embodiments, on the premise of ensuring that the optical signal receiving and transmitting capability of each Area meets the system requirements, the Area can be distributed into a plurality of transmitting areas and receiving areas in an operable Area (AA Area) and a frame Area of the screen, and the transmitting areas and the receiving areas are arranged in an array. That is, the light emitting elements 111 and the light sensing elements 121 may be both arranged in an array in the operable area of the screen; alternatively, the light emitting elements 111 are arranged in the operable area of the screen, and the light sensing elements 12 are arranged in the frame area of the screen in an array manner; alternatively, the light emitting elements 111 are arranged in the operable area of the screen, the light sensing elements 121 are arranged in the frame area of the screen, and the light sensing elements 121 are arranged in the operable area of the screen.

When the photosensitive elements 121 are arranged in the frame area of the screen in an array manner, the space for arranging the light emitting elements 111 in the operable area of the screen in an array manner is larger, the number of the light emitting elements 111 is more, the arrangement manner is more various, the display brightness of the operable area of the screen can be ensured, and the display quality of the screen is improved.

In other embodiments, the arrangement of the light emitting element 111 and the light sensing element 121 may be other arrangements, and is not limited herein. In addition, the light emitting element 111 and the light receiving element 121 may operate in a time-sharing manner using the same wavelength or may operate simultaneously using different wavelengths.

The light-emitting element 111 and the photosensitive element 121 are arranged in the same display panel 100, so that the internal structure layout of the display device with the display panel 100 is simplified, the mutual optical communication connection between two or more display devices with the display panel 100 can be realized, and the communication and display integrated equipment in the true sense is realized. Referring to fig. 3, for example, the structure of the display panel 100 of the present application can be used to transmit data information (including multimedia data) of the display device 1 to the light sensing element 1212 of the display device 2 via the light emitting element 1111 of the terminal 1 to receive the data information. Alternatively, data information (including multimedia data) of the display device 2 is transmitted to the light-sensitive element 1211 of the display device 1 through the light-emitting element 1112 in the display device 2 to receive the data information. The display device may be a tablet computer, a mobile phone, or other devices having the display panel 100.

Referring to fig. 4, in some embodiments, the display panel 100 includes a plurality of pixel units 101, each including at least one light emitting device 111 and at least one light sensing device 121. Specifically, the pixel unit 101 may include one light emitting element 111 and one photosensitive element 121, may also include 2 or more light emitting elements 111 and 2 or more photosensitive elements 121, or include 2 or more light emitting elements 111 and one photosensitive element 121, or include 1 light emitting element and 2 or more photosensitive elements 121.

It is understood that one pixel unit 101 can realize the channel connection of one kind of optical information, and a plurality of pixel units 101 can realize the channel connection of a plurality of kinds of optical information. The larger the number of the light emitting elements 111 included in each pixel unit 101, the larger the range of the light information emitted by the light emitting elements of the display panel 1 at the emitting end, the more the light is emitted, and the light sensing elements in the display panel 2 at the receiving end can more easily receive the light information emitted by the light emitting elements of the display panel 1, so that the accuracy of the information emitted by the light information channel is enhanced. The more the number of the photosensitive elements 121 included in each pixel unit 101 is, the larger the range of the pixel unit 101 capable of receiving the light information is, the light information can be easily received without adjusting the angle of the display panel, and the light information can be more easily received, thereby improving the user experience.

In addition, in consideration of the problem that the brightness of different pixels is different when the display panel 100 displays, each pixel unit may emit light information as one large light source, or each pixel unit may receive information as one large light sensor. The specific number of light emitting elements 111(LED lamps) or light sensing elements 121 (light sensors) used as a large light source to transmit light information or receive light information depends on the requirement.

Referring to fig. 4, in one embodiment, the light emitting elements 111 are arranged along a column extending direction, the light sensing elements 121 are arranged along the column extending direction, and the light emitting elements 111 and the light sensing elements 121 are alternately arranged along a row extending direction.

Referring to fig. 5, in another embodiment, the light emitting elements 111 are arranged along a row extending direction, the light receiving elements 121 are arranged along a row extending direction, and the light emitting elements 111 and the light receiving elements 121 are alternately arranged along a column extending direction.

Referring to fig. 6, in yet another embodiment, the light emitting elements 111 and the light sensing elements 121 are alternately arranged in the row extending direction and the column extending direction.

The arrangement of the light emitting elements 111 and the light sensing elements 121 is different, so that the pixel unit array 110 has different arrangement modes, and different transmitting and receiving channels can be obtained, and therefore, the display panel 100 can select the optimal channel and the channel number for transmission according to the channel state monitoring and information transmission requirements, thereby expanding the bandwidth and improving the transmission rate and the signal-to-noise ratio.

Referring to fig. 7, the light-emitting pixel driving circuit 131 may be a pulse control circuit that adds a pulse signal (such as the pulse signal in fig. 7) on the basis of a conventional pixel driving circuit, and may adjust the light-emitting brightness of the LED lamp in the light-emitting phase by applying a data signal to the conventional pixel driving circuit, so as to implement display control. In addition, the LED lamp can be controlled to be lightened or darkened at a high frequency in the lighting stage of the LED lamp by applying a pulse signal which is modulated and coded by the coding and demodulating module to the pulse control circuit. For example, the LED lamp may be controlled to be turned on when the pulse signal is a peak, and may be controlled to be turned off when the pulse signal is a valley.

Referring to fig. 8, in some embodiments, the photosensitive pixel driving circuit 141 includes: an amplifying transistor 1411, an IV conversion circuit 1412, a load transistor 1413, and a capacitor 1414. A first electrode of the amplifying transistor 1411 is connected to a first power source terminal Vdd. The gate of the amplifying transistor 1411 (T2 in fig. 8) is connected to the cathode of the light sensing element 121, and the anode of the light sensing element PIN is connected to the bias power source terminal Vbais. The IV conversion circuit 1412 is connected to the second pole of the amplifying transistor 1411. A first pole of the load transistor 1413 (T1 in fig. 8) is connected to the reference power source Vrst, a gate of the load transistor 1413 is connected to the reset control terminal RST, and a second pole of the load transistor 1413 is connected to the gate of the amplifying transistor 1411. The capacitor 1414 connects the anode and cathode of the photo sensing element PIN.

Specifically, the load transistor T1 may adjust an operation level of the light sensing element PIN, and the amplifying transistor T2 may amplify the weak photoelectric conversion signal. The weak photoelectric conversion signal here is generated after light is irradiated to the photodiode PIN. It can be understood that, after the LED lamp or other display lamp source in the other device except the display panel 100 irradiates the display panel 100, the photosensitive sensor with high frequency response (i.e. the structure indicated by the dashed line frame in fig. 8) can quickly receive the light information with the fast brightness difference, and firstly, the weak bright and dark photoelectric signal is amplified and filtered and then output to the ADC, so as to analyze the bright and dark electric signal in real time.

Referring to fig. 8, the photosensitive pixel driving circuit 141 further includes an amplifying and filtering circuit 1415 and an analog-to-digital conversion circuit 1416, and the amplifying and filtering circuit 1415 is connected to the IV conversion circuit 1412 and the analog-to-digital conversion circuit 1416. Specifically, for example, after an ac signal with a certain sinusoidal frequency is superimposed on an LED lamp with certain brightness as shown in fig. 9, the light sensing element PIN receives LED light information and is amplified and filtered by the amplifying and filtering circuit 1415 in the light sensing pixel driving circuit 141, and then regular signals with the same frequency can be analyzed. Correspondingly, after the modulated pulse signals are superimposed on the light emitted by the LED lamp at the emitting end, the light sensing element PIN receives the LED light information, and after the LED light information is amplified and filtered by the amplifying and filtering circuit 1415 in the light sensing pixel driving circuit 141, the pulse signals with the same frequency can be analyzed, and then the electric signals after being analyzed are converted into digital signals by the analog-to-digital conversion circuit 1416, so that the transmitted data information is obtained.

Referring to fig. 1 again, the display panel 100 includes a high frequency display driving control module 150, the high frequency display driving control module 150 provides a light-emitting data signal (such as the pulse signal shown in fig. 7) and a high frequency control signal to the light-emitting pixel driving circuit 131, and the light-emitting pixel driving circuit 131 emits a light signal according to the light-emitting data signal and the high frequency control signal.

Referring to fig. 1 and fig. 2 again, the display panel 100 includes an optical information collection module 160, and the optical information collection module 160 analyzes the electrical signal to obtain data information. The optical information collection module 160 is electrically connected to the photosensitive pixel driving circuit 141, and is capable of receiving the electrical signal generated by the photosensitive pixel driving circuit 141, and analyzing the electrical signal to obtain data information corresponding to the optical signals one to one. The optical signal refers to the LED lamp signal in fig. 9, and the electrical signal refers to the analyzed regular signal with the same frequency in fig. 9.

Referring to fig. 10, the present application further provides a display device 1000 including the display panel 100 described above. The display device 1000 of the present application may be a device having the display panel 100, such as a tablet computer or a mobile phone. The display panel 100 of the display device 1000 of the present application has a distributed multi-array optical communication transceiving area, and can select an optimal channel and channel number for transmission according to the channel state monitoring and information transmission requirements, thereby expanding the bandwidth and improving the transmission rate and the signal-to-noise ratio.

Referring to fig. 11, the present application further provides a communication control method for the display panel 100. The communication control method comprises the following steps:

01: controlling all photosensitive pixel driving circuits in the display panel to work, and generating an electric signal according to an optical signal collected by a photosensitive pixel;

02: demodulating and decoding the optical signals generated by each photosensitive pixel driving circuit to generate bit stream information;

03: calculating corresponding signal intensity and signal-to-noise ratio according to the electric signals generated by each photosensitive display driving circuit;

04: processing bit stream information and determining a photosensitive element to be transmitted according to the signal intensity and the signal-to-noise ratio;

05: and controlling a photosensitive pixel driving circuit corresponding to the photosensitive element to be transmitted to work so as to receive data information.

Referring to fig. 12, the present application further provides a communication control apparatus 10, where the communication control apparatus 10 includes a first control module 11, a communication data processing module 12, a determination module 13, and a second control module 14. The communication control device 10 may be externally connected to the display panel 100, or may be provided inside the display panel 100.

Step 01 can be implemented by the first control module 11, steps 02 and 03 can be implemented by the communication data processing module 12, step 04 can be implemented by the determination module 13, and step 05 can be implemented by the second control module 14. That is, the first control module 11 is configured to control all photosensitive pixel driving circuits in the display panel to operate, and generate an electrical signal according to an optical signal collected by a photosensitive pixel; the communication data processing module 12 is configured to demodulate and decode the optical signals generated by the photosensitive pixel driving circuits to generate bit stream information; calculating corresponding signal intensity and signal-to-noise ratio according to the electric signals generated by each photosensitive display driving circuit; the determining module 13 is configured to process the bitstream information and determine a photosensitive element to be transmitted according to the signal strength and the signal-to-noise ratio; the second control module 14 is configured to control the photosensitive pixel driving circuit corresponding to the photosensitive element to be transmitted to operate so as to receive data information.

It can be understood that the communication systems all have strict frame structures, and the data frame structures generally include broadcast frames and data service frames, so the present application can determine the working state of the communication link by means of the broadcast frames, perform power-down processing on the related devices with poor link states, and select a better link in advance for data transmission when sending high-speed data services. The determining module 13 processes the bitstream information to analyze the light-sensitive element information corresponding to the broadcast frame or the data service frame, so as to determine whether the light-sensitive element is a correct light-sensitive element according to the light-sensitive element information, that is, to determine whether a user needs to receive the light-sensitive element in the display device of the broadcast or the data, so as to determine the light-sensitive element receiving the broadcast frame or the data service frame. And when the photosensitive element is determined to be a correct receiving object, determining the photosensitive element to be transmitted according to the signal intensity and the signal-to-noise ratio.

As shown in fig. 13, the working process of the communication control apparatus in this embodiment can be roughly divided into four stages, which are a broadcast detection stage, a channel quality determination stage, a channel data transmission selection stage and a power-up resuming stage, and the detailed working process is described as follows:

(1) broadcast detection phase

The optical communication system of the sending end sends broadcast information through the display pixel array, all the array photosensitive sensors and the communication circuits of the receiving end are powered on, broadcast optical signals (carrying the broadcast information) are received simultaneously in the powered-on state, the optical information is subjected to photoelectric conversion to form weak electric signals, and the electric signals are amplified, filtered and sent to the communication processing unit. That is, all the photosensitive pixel driving circuits in the display panel are controlled to operate by the first control module 11 to generate electrical signals according to the optical signals collected by the photosensitive pixels.

(2) Channel decision phase

Then, the electric signals generated by the respective photosensitive pixel driving circuits are demodulated and decoded to generate bit stream information. Specifically, the communication data processing module 12 performs demodulation, decoding, and other processing to generate original bit stream information, and calculates the signal strength and signal-to-noise ratio (SNR) of the signal received by the channel formed by each photosensitive pixel driving circuit.

The physical layer of the communication data processing module 12 is connected with the original bit stream information and the SNR information and transmits them to the protocol layer, so that the protocol layer performs service allocation and scheduling processing. It is understood that the communication data processing module 12 includes a physical layer codec processing module and a network protocol layer scheduling maintenance module. The processing module of the physical layer coding and decoding is divided into a coding demodulation module and a demodulation decoding module, and mainly carries out corresponding modulation and coding processing on high-frequency information flow according to a standard communication protocol and sends the high-frequency information flow to a display driving module, or demodulates and decodes the high-frequency information flow to restore the original information bit flow.

In order to efficiently realize the power-down control of the channel, because the physical layer is closest to the bottom hardware, the power-down control instruction is generally sent to the bottom hardware by the physical layer, and certainly, the power-down instruction can also be sent from higher levels such as a protocol layer or a network layer, so that the power-down processing of the bottom hardware channel is realized.

After receiving the power-off instruction, the photosensitive element in the hardware system generates a corresponding power-off signal to perform power-off processing on a photosensitive sensor, an amplifier and the like in the photosensitive element. That is, if a signal received by a photosensitive display driving circuit is lower than a certain threshold, or the SNR is lower than a certain threshold, it is determined that a channel formed by the photosensitive display driving circuit is not suitable for data transmission, and power down is performed, thereby saving energy consumption.

The hierarchy of the communication system is not illustrated herein and reference may be made to the relevant standard communication protocols.

(3) Selecting a channel transmission stage;

the determination module 13 may then determine the photosensitive element to be transmitted according to the signal strength and the signal-to-noise ratio. Specifically, after receiving the SNR information of each array of the physical layer, the protocol layer establishes or updates a local channel state lookup table of each array, and refers to the table when transmitting data, selects a plurality of most suitable arrays for high-speed data transmission according to the needs of actual services, and does not select or transmit all 0 information for other channels, thereby achieving the purpose of energy saving and consumption reduction in the protocol layer. Finally, the second control module 14 is controlled to control the photosensitive pixel driving circuit corresponding to the photosensitive element to be transmitted to operate, so as to receive the data information.

(4) Re-power-on phase

After one transmission and reception, the communication system is ready to retransmit the broadcast information, at this time, the physical layer issues a power-on instruction to the bottom layer hardware, and after receiving the power-on instruction, the bottom layer hardware performs power-on processing on the corresponding photosensitive sensor, amplifier and the like, so as to perform next round of link state detection and power-on and power-off judgment.

In the embodiment of the application, the display panel mainly comprises the PIN and the TFT devices, the power supply of each unit device is constant under the current normal working condition, the normal power supply of the display panel can be ensured, and the display panel is fused with the current working method of the display panel, so that the process is simple.

The hardware of the receiving channel inside the display panel is shown in fig. 14 and is composed of an analog part and a digital part, wherein the analog part is mainly responsible for amplifying PIN photoelectric conversion signals and performing analog-to-digital conversion, and the digital part is mainly composed of a power supply control part, an acquisition time sequence part, a data processing part, a data summarizing part and an interface transmission part. The channel simulation part of the power supply control module can control the power on and off of the active device, and therefore the effects of energy conservation and consumption reduction are achieved.

The channel acquisition time sequence can control the time sequence control and data acquisition of the PIN pixel circuit.

The channel data processing module may perform power detection on data received by each channel, detect the data in a special time sequence (such as a broadcast time sequence) of a communication frame, if the channel is damaged or blocked, determine that the channel is abnormal if the detected data power is lower than a preset threshold, and otherwise, determine that the channel is normal. The channel data processing module can output state information to the power supply control module to guide the power supply module to carry out power-on and power-off processing.

The multi-channel data summarization module can process the data received by each channel according to a certain arrangement mode, and process the data into a certain structure packet format for transmission, the transmission content of the structure packet comprises data and state information of each channel, and the data arrangement mode and the packaging format are not specially limited, as long as the transceiving parties can analyze the data according to the same format.

And the interface transmission module can transmit the packaged data in a wired mode.

In the present application, in order to reduce power consumption, power supplies of respective devices need to be controlled up and down, and therefore, there is switching between two levels. That is, after the back-end processing chip receives a physical layer power-down or power-up command, the back-end processing chip can control the power supply signals of the PIN and the TFT to implement power-up and power-down operations (such as Vbias, Vrst, Vdd, etc.) of the device. For a peripheral amplifying circuit, the power can be cut off from the active amplifying device, so that the power consumption is reduced to the maximum extent, and the competitiveness of the product is improved.

Referring to fig. 15, in some embodiments, the communication control method further includes:

001: all light-emitting elements in the display panel are controlled to emit light signals to transmit broadcast information while all light-sensitive pixel driving circuits in the display panel are controlled to operate.

Referring to fig. 12, step 011 can be implemented by the first control module 11. That is, the first control module 11 is further configured to control all light-emitting elements in the display panel to emit light signals to transmit broadcast information while controlling all light-sensing pixel driving circuits in the display panel to operate. Step 001 corresponds to the broadcast detection stage described above.

Specifically, while controlling all the light-sensing pixel driving circuits in the display panel to operate, all the light-emitting elements in the display panel are controlled to emit light signals to transmit broadcast light signals, i.e., a bidirectional communication mode in which broadcast light signals are transmitted and received simultaneously on one display panel can be realized.

Referring to fig. 16, the communication control method includes:

06: and after the data information is received, retransmitting the broadcast information.

Referring to fig. 17, the communication control apparatus 10 further includes a power-up resuming module 15.

Step 06 may be implemented by the re-power-up module 15. That is, the re-power-on module 15 is configured to re-transmit the broadcast information after the data information reception is completed.

Step 06 is the re-power-up phase described above.

Specifically, after one transmission and reception, the communication control apparatus 10 is ready to retransmit the broadcast information (the broadcast optical signal carries the broadcast information), at this time, the physical layer issues a power-on instruction to the bottom layer hardware, and after receiving the power-on instruction, the bottom layer hardware performs power-on processing on the corresponding photosensitive sensor, amplifier, and the like, so as to perform next round of link state detection and power-on and power-off determination.

Referring to fig. 18, step 04 includes:

041: under the condition that the signal intensity is not less than a first threshold value and the signal-to-noise ratio is not less than a second threshold value, determining the corresponding photosensitive element as the photosensitive element to be transmitted; determining the corresponding photosensitive element as a non-transmitted photosensitive element under the condition that the signal intensity is smaller than a first threshold value or the signal-to-noise ratio is smaller than a second threshold value;

042: and controlling the photosensitive pixel driving circuit corresponding to the photosensitive element which is not transmitted to stop working.

Referring to fig. 19, the determining module 13 includes a determining unit 132 and a control unit 134. Step 041 and step 042 may correspond to the channel determination phase and the select channel transmission phase described above.

Step 041 may be implemented by the determination unit 132 and step 042 may be implemented by the control unit 134. That is, the determining unit 132 is configured to determine, when the signal intensity is not less than the first threshold and the signal-to-noise ratio is not less than the second threshold, that the corresponding photosensitive element is the photosensitive element to be transmitted; and determining that the corresponding photosensitive element is a non-transmitted photosensitive element when the signal intensity is smaller than a first threshold value or the signal-to-noise ratio is smaller than a second threshold value. The control unit 134 is used for controlling the photosensitive pixel driving circuits corresponding to the non-transferred photosensitive elements to stop working.

Specifically, the first threshold is a signal intensity critical value capable of supporting normal data transmission of the photosensitive element.

The second threshold is a signal-to-noise ratio critical value capable of supporting normal data transmission of the photosensitive element. It is understood that signal-to-noise ratio (SNR) refers to the ratio of signal to noise in an electronic device or system, and is essentially the ratio of the normal sound signal to the signal-to-noise signal, expressed in dB. Generally, the larger the signal-to-noise ratio, the smaller the noise mixed in the signal, the higher the quality of sound playback, and vice versa.

The communication control method of the present application may determine that a channel formed by the photosensitive element is suitable for data transmission under the condition that the signal intensity is not less than the first threshold and the signal-to-noise ratio is not less than the second threshold, and determine, by using the determining unit 132, that the corresponding light emitting element is the light emitting element to be transmitted. When the signal intensity is smaller than the first threshold or the signal-to-noise ratio is smaller than the second threshold, it is determined that the channel configured corresponding to the photosensitive element is not suitable for data transmission, and the determining unit 132 determines that the corresponding light-emitting element is a non-transmitted light-emitting element. Meanwhile, the photosensitive pixel driving circuit corresponding to the non-transmitted photosensitive element is controlled to stop working, so that energy consumption can be saved.

Referring to fig. 20, in some embodiments, a communication control method includes:

07: and determining the light-emitting element to be transmitted according to the signal intensity and the signal-to-noise ratio.

Referring to fig. 19, step 07 may be implemented by the determining module 13. That is, the determining module 13 is further configured to determine the light emitting element to be transmitted according to the signal strength and the signal-to-noise ratio. Step 07 may correspond to the channel determination phase described above.

Because the light-emitting element and the photosensitive element have the corresponding relation of receiving and emitting light signals, the corresponding signal intensity and signal to noise ratio are calculated according to the broadcast data signals generated by each photosensitive display driving circuit in the same way of determining the photosensitive element to be transmitted, and then the light-emitting element to be transmitted corresponding to the photosensitive element to be transmitted can be determined according to the values of the signal intensity and the signal to noise ratio.

Referring to fig. 21, step 06 includes:

071: under the condition that the signal intensity is not smaller than a first threshold value and the signal-to-noise ratio is not smaller than a second threshold value, determining the corresponding light-emitting element as the light-emitting element to be transmitted; determining the corresponding light-emitting element as a non-transmission light-emitting element under the condition that the signal intensity is smaller than a first threshold value or the signal-to-noise ratio is smaller than a second threshold value;

072: the non-transmitting light emitting element is controlled to emit light normally.

Referring to fig. 19, step 071 can be implemented by the determination unit 132 and step 072 can be implemented by the control unit 134. That is, the determining unit 131 is configured to determine that the corresponding light emitting element is the light emitting element to be transmitted when the signal intensity is not less than the first threshold and the signal-to-noise ratio is not less than the second threshold; determining the corresponding light-emitting element as a non-transmission light-emitting element under the condition that the signal intensity is smaller than a first threshold value or the signal-to-noise ratio is smaller than a second threshold value; the control unit 134 is used to control the non-transmitted light emitting elements to emit light normally. Steps 071 and 072 may correspond to the channel determination phase and the selected channel transmission phase described above.

Specifically, in the communication control method of the present application, it may also be determined that the light sensing element in a certain pixel unit is suitable for data transmission when the signal intensity is not less than the first threshold and the signal-to-noise ratio is not less than the second threshold, for example, it may be considered that the light emitting element in the same pixel unit region in the light sensing element is also suitable for data transmission, or it may be considered that the light emitting element adjacent to the light sensing element is also suitable for data transmission, that is, it is determined that the channel formed by the light emitting element correspondingly is suitable for data transmission, and the determination unit 132 is used to determine the corresponding light emitting element as the light emitting element to be transmitted. When the signal intensity is smaller than the first threshold or the signal-to-noise ratio is smaller than the second threshold, it is determined that the channel configured corresponding to the light emitting element is not suitable for data transmission, and the determination unit 132 determines that the corresponding light emitting element is a non-transmitted light emitting element. Meanwhile, other light-emitting elements which do not transmit signals are controlled to emit light normally, so that the overall normal display function of the display panel is ensured.

The first threshold and the second threshold are the same as the first threshold of the signal intensity in the photosensitive element and the second threshold of the signal-to-noise ratio, and are not described herein again.

Referring to fig. 22, the present application further provides an electronic device 200 including a processor 210 and a memory 220. The memory 220 stores a computer program 221, and the steps of the communication control method described above are implemented when the computer program 221 is executed by the processor 210. For example, processor 210 is configured to implement:

01: controlling all photosensitive pixel driving circuits in the display panel to work, and generating an electric signal according to an optical signal collected by a photosensitive pixel;

02: demodulating and decoding the optical signals generated by each photosensitive pixel driving circuit to generate bit stream information;

03: calculating corresponding signal intensity and signal-to-noise ratio according to the electric signals generated by each photosensitive display driving circuit;

04: processing bit stream information and determining a photosensitive element to be transmitted according to the signal intensity and the signal-to-noise ratio;

05: and controlling a photosensitive pixel driving circuit corresponding to the photosensitive element to be transmitted to work so as to receive data information.

The display panel in the electronic device 200 of the present application has a distributed multi-array optical communication transceiving area, and the electronic device 200 of the present application can select an optimal channel and channel number for transmission according to the state monitoring and information transmission requirements of the channel by using a communication control method, thereby expanding the bandwidth, improving the transmission rate and the signal-to-noise ratio, and realizing the communication display integration in the true sense.

Referring to fig. 23, the present application provides a non-transitory computer readable storage medium 300 of a computer program, which when executed by one or more processors 400, implements the steps of the communication control method described above.

In some embodiments, the computer-readable storage medium 300 may be a storage medium built in the electronic device 200, such as a memory, or may be a storage medium that can be plugged into the electronic device 200, such as an SD card.

The above examples only express several embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present application. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, which falls within the scope of protection of the present application. Therefore, the protection scope of the present patent shall be subject to the appended claims.