Display screen communication apparatus and display screen system

Abstract

A display screen communication apparatus (100) and a display screen system. The display screen communication apparatus (100) comprises: signal transmission modules (110) and signal receiving modules (120). The signal transmission modules (110) are used for receiving externally transmitted display source data, and modulating the display source data so as to send optical signals corresponding to the display source data. The number of the signal receiving modules (120) is equal to the number of display modules (211) of a display screen (200), the signal receiving modules (120) are connected on a one-to-one basis to the display modules (211), and the signal receiving modules (120) are used for receiving the optical signals sent by the signal transmission modules (110), and demodulating the received optical signals into corresponding display data, so that the display modules (211) perform display on the basis of the display data.

Description

Display screen communication device and display screen system

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This application claims priority to Chinese patent application No. 2024103169072, filed on March 19, 2024, entitled “Display Screen Communication Device and Display Screen System,” which is incorporated herein by reference in its entirety. Technical Field

[0003] The present application relates to the field of display technology, and in particular to a display screen communication device and a display screen system. Background Art

[0004] With the development and progress of society, light emitting diode (LED) displays are increasingly used in large display screens, billboards and other scenarios due to their high brightness, low energy consumption, stable performance and long life.

[0005] LED displays are typically composed of multiple cabinets, each of which is composed of multiple panel modules. Communication between cabinets and modules typically requires high-speed communication cables. The video data to be displayed is transmitted to each module via these cables, resulting in a large number of cables and connectors required for the display. However, the excessive number of cables and connectors complicates assembly and increases the workload for display installation and maintenance. Summary of the Invention

[0006] Based on this, it is necessary to provide a display screen communication device and a display screen system with low assembly complexity.

[0007] The present application provides a display screen communication device, comprising:

[0008] a signal transmission module, configured to receive display source data transmitted from an external source, and modulate the display source data to emit an optical signal corresponding to the display source data;

[0009] The signal receiving module has the same number as the display modules of the display screen, and each signal receiving module is connected to each display module in a one-to-one correspondence. The signal receiving module is used to receive the optical signal emitted by the signal transmission module and demodulate the received optical signal into corresponding display data so that the display module can display according to the display data.

[0010] In one embodiment, the display screen is formed with a plurality of cavities, at least one display module and one signal transmission module are provided in one cavity, and the cavities are optically isolated from each other.

[0011] In one embodiment, a reflective component is further included. The reflective component is arranged on a side of the display screen close to the signal receiving module. The reflective component is arranged corresponding to the signal receiving module and is used to reflect the light signal emitted by the signal transmission module to the signal receiving module.

[0012] In one embodiment, the optical signal emitted by the signal transmission module is transmitted in the form of flood light.

[0013] In one embodiment, the signal transmission module includes:

[0014] Light-emitting element;

[0015] The encoder is connected to the light emitting element and is used for receiving display source data transmitted from the outside and modulating the display source data to drive the light emitting element to emit a light signal corresponding to the display source data.

[0016] In one embodiment, the signal receiving module includes:

[0017] a light receiving element, configured to receive the light signal emitted by the light emitting element;

[0018] The decoder is connected to the light receiving element and the display module respectively, and is used to demodulate the optical signal received by the light receiving element into corresponding display data, so that the display module can display according to the display data.

[0019] In one embodiment, the light emitting element is a light emitting diode, and the light receiving element is a photosensitive diode.

[0020] In one embodiment, a side of the display screen close to the signal receiving module is covered with a reflective coating.

[0021] In one embodiment, the display module of the display screen includes:

[0022] Display unit;

[0023] The constant current driving unit is connected to the display unit and the signal receiving module respectively, and is used to receive the display data demodulated by the signal receiving module and drive the display unit to display according to the display data.

[0024] The present application also provides a display screen system, comprising a display screen and the display screen communication device as described above.

[0025] The above-mentioned display screen communication device and display screen system include a signal transmission module and a signal receiving module. The signal transmission module is used to receive display source data transmitted from the outside and modulate the display source data to emit an optical signal corresponding to the display source data. The number of signal receiving modules is equal to the number of display modules of the display screen. Each signal receiving module is connected to each display module in a one-to-one correspondence. The signal receiving module is used to receive the optical signal emitted by the signal transmission module and demodulate the received optical signal into the corresponding display data so that the display module can display according to the display data. As a result, the transmission process of the display source data no longer requires cables, so that each display module does not need to be equipped with cables and connectors, thereby eliminating the assembly process of cables and connectors, reducing the low assembly complexity of the communication device, and thereby reducing the workload of installation and maintenance. Since there is no need to set up cables and connectors, the internal space of the screen body is reduced, which is more conducive to the lightweight design of the display screen. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the conventional technology, the following briefly introduces the drawings required for use in the embodiments or the conventional technology descriptions. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0027] FIG1 is a schematic diagram of a module of a display screen communication device according to an embodiment;

[0028] FIG2 is a module diagram of a display screen communication device according to another embodiment;

[0029] FIG3 is a module diagram of a display screen communication device according to another embodiment;

[0030] FIG4 is a schematic diagram of a partial structure of a display screen communication device according to an embodiment;

[0031] FIG5 is a schematic diagram of a module of a display screen system according to an embodiment;

[0032] FIG6 is a schematic diagram of a display screen housing according to an embodiment; and

[0033] FIG. 7 is a schematic diagram of modules of a display screen system according to another embodiment. DETAILED DESCRIPTION

[0034] To facilitate understanding of the present application, the present application will be described more fully below with reference to the accompanying drawings. The accompanying drawings provide embodiments of the present application. However, the present application may be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to make the disclosure of the present application more thorough and comprehensive.

[0035] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which this application pertains. The terms used herein in the specification of this application are for the purpose of describing specific embodiments only and are not intended to limit this application.

[0036] It will be understood that the terms "first," "second," etc., used herein may be used to describe various elements, but these elements are not limited by these terms. These terms are only used to distinguish a first element from another element. For example, a first resistor may be referred to as a second resistor, and similarly, a second resistor may be referred to as a first resistor without departing from the scope of this application. The first resistor and the second resistor are both resistors, but they are not the same resistor.

[0037] It can be understood that the “connection” in the following embodiments should be understood as “electrical connection”, “communication connection”, etc. if there is transmission of electrical signals or data between the connected circuits, modules, units, etc.

[0038] It is understood that “at least one” refers to one or more, “a plurality” refers to two or more, and “at least a portion of an element” refers to a portion or all of an element.

[0039] As used herein, the singular forms "a," "an," and "the" may also include the plural forms, unless the context clearly indicates otherwise. It should also be understood that the terms "include," "comprising," "having," and the like specify the presence of stated features, integers, steps, operations, components, parts, or combinations thereof, but do not preclude the presence or addition of one or more other features, integers, steps, operations, components, parts, or combinations thereof. Furthermore, the term "and / or" as used in this specification includes any and all combinations of the relevant listed items.

[0040] In one embodiment, a display screen communication device is provided. As shown in FIG1 , the display screen communication device 100 includes a signal transmission module 110 and a signal receiving module 120. The signal transmission module 110 is configured to receive externally transmitted display source data and modulate the display source data to emit an optical signal corresponding to the display source data. The number of signal receiving modules 120 is equal to the number of display modules 211 of the display screen, and each signal receiving module 120 is connected to each display module 211 in a one-to-one correspondence. The signal receiving module 120 is connected to the display module of the display screen and is configured to receive the optical signal emitted by the signal transmission module 110 and demodulate the received optical signal into corresponding display data, so that the display module 211 can display according to the display data.

[0041] Specifically, the display source data is transmitted by a video data output device, which can be configured according to actual conditions, such as a sending card, which is used to receive and process source data sent by a player or other device to obtain display source data.

[0042] Signal transmission module 110 is used to receive display source data transmitted by the sending card and modulate (i.e., encode) the display source data to emit an optical signal corresponding to the display source data. Signal transmission module 110 can be located at the bottom or other edge of the display screen to facilitate optical signal transmission. The optical signal can use visible light, specifically infrared light or ultraviolet light.

[0043] Each signal receiving module 120 is connected to each display module 211 in a one-to-one correspondence. For example, each signal receiving module 120 is provided on each display module 211. Each signal receiving module 120 receives the optical signal emitted by the signal transmission module 110, demodulates (i.e., decodes) the received optical signal into corresponding display data, and then transmits the display data to the display module 211, so that the display module 211 displays according to the display data.

[0044] In actual implementation, each signal receiving module 120 or the display module 211 connected thereto has a unique identifier, and the unique identifier is stored in the signal receiving module 120. When the signal receiving module 120 demodulates the optical signal, it obtains the display data corresponding to the unique identifier, so that the display module 211 connected thereto displays according to the display data corresponding to the unique identifier.

[0045] The display screen communication device includes a signal transmission module 110 and a signal receiving module 120. The signal transmission module 110 is used to receive display source data transmitted from the outside and modulate the display source data to emit an optical signal corresponding to the display source data. The number of signal receiving modules 120 is equal to the number of display modules 211 of the display screen. Each signal receiving module 120 is connected to each display module 211 in a one-to-one correspondence. The signal receiving module 120 is used to receive the optical signal emitted by the signal transmission module 110 and demodulate the received optical signal into corresponding display data so that the display module 211 can display according to the display data. As a result, each display module 211 of the display screen does not need to be equipped with cables and connectors, which can save the assembly process of cables and connectors, reduce the assembly complexity of the communication device, and thus reduce the workload of installation and maintenance. Since there is no need to set up cables and connectors, the occupied space is reduced, which is more conducive to the lightweight design of the display screen and saves the cost of cables and connectors.

[0046] It should be noted that the related art uses radio frequency wireless transmission to transmit display source data, which is costly and has high electromagnetic interference, causing radiation interference. This embodiment uses optical transmission to wirelessly transmit display source data, which can avoid radiation interference and reduce costs.

[0047] In one embodiment, as shown in FIG2 , a display screen is formed with multiple cavities 210. Each cavity 210 is provided with at least one display module 211 and one signal transmission module 110. The cavities 210 are optically isolated from each other. The signal transmission module 110 in each cavity 210 is configured to receive display source data transmitted by a sending card and modulate the display source data to emit an optical signal corresponding to the display source data.

[0048] Specifically, a signal transmission module 110 is disposed in each cavity 210, and light emitted by the signal transmission module 110 can reach each signal receiving module 120 in the cavity 210. The method of optical isolation between the cavities 210 can be selected based on actual needs, as long as the optical signal in the cavity 210 does not leak into other cavities 210.

[0049] It will be understood that in the embodiment shown in FIG. 2 , the display screen is formed with two cavities 210, and four display modules 211 are disposed in one cavity 210. This is merely illustrative. In actual implementation, the display screen may have more cavities 210, and each cavity 210 may have more or fewer display modules 211. Specifically, the amount of display source data may be determined based on parameters such as the resolution and frame rate of the display screen. The plurality of display modules 211 are then divided to form cavities 210 in combination with the data bandwidth of the optical transmission of the signal transmission module 110. It is necessary to ensure that the data transmitted by a signal transmission module 110 can meet the display requirements of each display module 211 within the cavity 210 in which it is located, and to avoid wasting bandwidth of the signal transmission module 110 due to a cavity 210 that is too small (where the number of display modules 211 is too small).

[0050] In this embodiment, when the display screen includes multiple display modules 211, the cavity 210 is divided according to actual conditions, and a signal transmission device 110 is set corresponding to each cavity 210. This can better take into account the bandwidth utilization of each signal transmission device 110, ensure the transmission quality of data of each signal transmission device 110, and ensure the display effect of the display screen.

[0051] In one embodiment, the optical signal emitted by the signal transmission module 110 can be transmitted in the form of floodlight (i.e., scattered light). It can be understood that the signal receiving module 120 is distributed in the cavity 210 along with the display module 211, and the form of scattered light can ensure that the signal receiving modules 120 distributed in various positions can receive the optical signal, thereby ensuring that each display module 211 can display normally. In other embodiments, the optical signal emitted by the signal transmission module 110 can also be transmitted in the form of direct light. Since direct light is difficult to illuminate the signal receiving module 120 at each position, the optical path design of direct light is more difficult. Compared with the direct light method, the optical path design of scattered light is simpler and easier to implement.

[0052] The structures of the signal transmission module 110 and the signal receiving module 120 can be set according to actual conditions. In one embodiment, as shown in Figure 3, the signal transmission module 110 includes an encoder 1101 and a light-emitting element 1102. The encoder 1101 is connected to the light-emitting element 1102 for receiving display source data transmitted externally and modulating the display source data to drive the light-emitting element 1102 to emit a light signal corresponding to the display source data.

[0053] Specifically, the encoder 1101 is connected to the sending card to receive the display source data transmitted by the sending card, and encodes the display source data into a format that is conducive to light transmission by the light emitting element 1102 to drive the light emitting element 1102 to emit a corresponding light signal.

[0054] In one embodiment, the signal receiving module 120 includes a light receiving element 1201 and a decoder 1202. The decoder 1202 is connected to the light receiving element 1201 and the display module 211, respectively. The light receiving element 1201 is used to receive the light signal emitted by the light emitting element 1102. The decoder 1202 is used to demodulate the light signal received by the light receiving element 1201 into corresponding display data, so that the display module 211 can display according to the display data.

[0055] Specifically, each display module 211 is equipped with a light receiving element 1201 and a decoder 1202 to receive the light signal emitted by the light emitting element 1102 and demodulate the corresponding display data. In actual implementation, each decoder 1202 within the same housing 210 is uniquely identified. The encoder 1202 separates the portion of data received by the light receiving element 1201 corresponding to its identifier and converts it into display data in the format required by the display module 211, allowing the display module 211 to display the data.

[0056] The light-emitting element 1102 and the light-receiving element 1201 can be selected based on actual conditions. In one embodiment, the light-emitting element 1102 is a light-emitting diode, and the light-receiving element 1201 is a photosensitive diode. The structures of the encoder 1101 and the decoder 1202 are not limited. For example, the encoder 1101 and the decoder 1202 can be implemented by a field programmable gate array (FPGA) and its associated circuits, or by a dedicated chip.

[0057] In one embodiment, as shown in Figure 4, the display screen communication device 100 also includes a reflective component 400, which is arranged on a side of the display screen close to the signal receiving module 120. The reflective component 400 is arranged corresponding to the signal receiving module 120 and is used to reflect the optical signal emitted by the signal transmission module 110 to the signal receiving module 120.

[0058] In actual implementation, the display screen includes a back chassis. Specifically, the signal receiving module 120 is disposed on the display module 211, on a side away from the display unit 2112. The side where the display unit 2112 is located is the display surface of the display screen, and the back panel on the side of the display screen opposite the display surface is the back chassis. The side of the display module 211 away from the display unit 2112 is mounted within the back chassis of the display screen, and the optical signal transmitted by the signal transmission module 110 can be transmitted within the back chassis.

[0059] The reflective assembly 400 can be configured based on actual needs, for example, including a reflective plate. In this embodiment, the reflective assembly 400 is disposed on the side of the display screen near the signal receiving module 120, i.e., within the back bottom housing. The number of reflective assemblies 400 can be equal to the number of signal receiving modules 120, with each reflective assembly 400 corresponding to each signal receiving module 120. When configuring the reflective assembly 400, the reflective plate of the reflective assembly 400 can be angled to reflect the optical signal emitted by the light-emitting diode in the signal transmission module 110 to the photosensitive diode in the signal receiving module 120, thereby improving the effectiveness and efficiency of optical signal transmission.

[0060] In order to better understand the above embodiment, a detailed explanation is given below in conjunction with a specific embodiment. In one embodiment, the display screen is a 2K (1920*1080) display screen. Taking into account the transmission rate of floodlight, the display screen can be divided horizontally into 8 independent cavities 210. The amount of video data (i.e., display source data) that needs to be transmitted in each cavity 210 is close to 200Mbits. An LED is arranged at the bottom of each cavity 210, and the LED is connected to the encoder 1101. The encoder 1101 receives the video data transmitted by the sending card and converts it into a format that is conducive to the transmission of the LED, and then drives the LED to emit light, outputting the light signal corresponding to the video data for the entire cavity 210. The light signal emitted by the LED is transmitted in the form of scattered light inside the back bottom shell of the display screen and within the range of the cavity 210 where it is located.

[0061] Each display module 211 in the cavity 210 is provided with a corresponding photodiode. Inside the back bottom shell of the display screen, a reflector is arranged at an angle corresponding to each photodiode. The reflector can reflect the light signal emitted by the light-emitting diode in the cavity 210 to the corresponding photodiode, so that the photodiode receives the light signal more efficiently. The photodiode is connected to the decoder 1202 and transmits the data corresponding to the light signal to the decoder 1202. Each decoder 1202 in the same housing 210 is encoded with a unique identifier. The encoder 1202 parses the data corresponding to the identifier from the received data, converts it into the format required by the constant current driver chip in the display module 211, and transmits it to the constant current driver chip, thereby driving the lamp beads in the display module 211 to emit light.

[0062] In the above-mentioned display screen communication device, each display module 211 of the display screen does not need to be equipped with cables and connectors, which effectively solves the problem of a large number of cable connections on the display screen, eliminates the assembly process of cables and connectors, reduces the low assembly complexity of the communication device, and thus reduces the workload of installation and maintenance; since there is no need to set cables and connectors, the occupied space is reduced, which is more conducive to the lightweight design of the display screen and saves the cost of cables and connectors.

[0063] In one embodiment, a display system is provided. As shown in FIG5 , the display system includes a display screen 200 and a display screen communication device 100. The display screen 200 includes a housing. As shown in FIG6 , the housing includes multiple display modules 211. It is understood that the number of housings included in the display screen 200 and the number of display modules 211 in each housing can be set according to actual needs.

[0064] Referring to Figure 1 , the display screen communication device 100 includes a signal transmission module 110 and a signal receiving module 120. The signal transmission module 110 is configured to receive externally transmitted display source data and modulate the display source data to emit an optical signal corresponding to the display source data. The number of signal receiving modules 120 is equal to the number of display modules 211 of the display screen, and each signal receiving module 120 is connected to each display module 211 in a one-to-one correspondence. The signal receiving module 120 is connected to the display module of the display screen to receive the optical signal emitted by the signal transmission module 110 and demodulate the received optical signal into the corresponding display data, so that the display module 211 can display according to the display data.

[0065] In the above-mentioned display screen system, each display module 211 of the display screen does not need to be equipped with cables and connectors, which can save the assembly process of cables and connectors, reduce the low assembly complexity of the communication device, and thus reduce the workload of installation and maintenance of the display screen system; since there is no need to set up cables and connectors, the occupied space is reduced, which is more conducive to the lightweight design of the display screen and saves the cost of cables and connectors.

[0066] In one embodiment, referring to FIG2 , a display screen is formed with multiple cavities 210. Each cavity 210 is provided with at least one display module 211 and a signal transmission module 110. The cavities 210 are optically isolated from each other. The signal transmission module 110 in each cavity 210 is configured to receive display source data transmitted by a sending card and modulate the display source data to emit an optical signal corresponding to the display source data.

[0067] In this embodiment, when the display screen includes multiple display modules 211, the cavity 210 can be divided according to actual conditions, and a signal transmission device 110 is set corresponding to each cavity 210, while ensuring the transmission quality of data of each signal transmission device 110 and taking into account the bandwidth utilization of each signal transmission device 110.

[0068] In one embodiment, the optical signal emitted by the signal transmission module 110 can be transmitted in the form of floodlight (i.e., scattered light). It will be appreciated that the signal receiving module 120 is distributed within the cavity 210 along with the display module 211. The scattered light format ensures that all signal receiving modules 120 located at various locations can receive the optical signal, thereby ensuring that each display module 211 can display normally. Furthermore, the scattered light optical path design is simpler and easier to implement.

[0069] In one embodiment, referring to FIG. 3 , the signal transmission module 110 includes an encoder 1101 and a light-emitting element 1102 . The encoder 1101 is connected to the light-emitting element 1102 for receiving externally transmitted display source data and modulating the display source data to drive the light-emitting element 1102 to emit a light signal corresponding to the display source data.

[0070] In one embodiment, the signal receiving module 120 includes a light receiving element 1201 and a decoder 1202. The decoder 1202 is connected to the light receiving element 1201 and the display module 211, respectively. The light receiving element 1201 is used to receive the light signal emitted by the light emitting element 1102. The decoder 1202 is used to demodulate the light signal received by the light receiving element 1201 into corresponding display data, so that the display module 211 can display according to the display data.

[0071] In one embodiment, as shown in FIG7 , the display module 211 may include a constant current driving unit 2111 and a display unit 2112. The constant current driving unit 2111 is connected to the decoder 1202 and the display unit 2112, respectively. The constant current driving unit 2111 is configured to receive display data demodulated by the decoder 1202 and drive the display unit 2112 to display according to the display data.

[0072] Specifically, the constant current driving unit 2111 may include a constant current driving chip, the model of which may be selected according to actual conditions. The display unit 2112 may include lamp beads, which receive display data transmitted by the encoder 1202 and drive each lamp bead to display.

[0073] In one embodiment, referring to Figure 4, the display screen communication device 100 further includes a reflective component 400, which is disposed on a side of the display screen close to the signal receiving module 120. The reflective component 400 is disposed corresponding to the signal receiving module 120 and is configured to reflect the optical signal emitted by the signal transmission module 110 to the signal receiving module 120.

[0074] The reflective assembly 400 can be configured based on actual needs, for example, including a reflective plate. In this embodiment, the reflective assembly 400 is disposed on the side of the display screen near the signal receiving module 120, i.e., within the back bottom housing. The number of reflective assemblies 400 can be equal to the number of signal receiving modules 120, with each reflective assembly 400 corresponding to each signal receiving module 120. When configuring the reflective assembly 400, the reflective plate of the reflective assembly 400 can be angled to reflect the optical signal emitted by the light-emitting diode in the signal transmission module 110 to the photosensitive diode in the signal receiving module 120, thereby improving the effectiveness and efficiency of optical signal transmission.

[0075] In one embodiment, a side of the display screen 200 close to the signal receiving module 120 is covered with a reflective coating.

[0076] Specifically, the inner wall of the back bottom shell of the display screen 200 can be coated with a reflective coating to increase the transmission efficiency of the light signal. When setting the reflective coating, the inner wall of the cavity 210 can be coated in units of cavity 210, and the specific coating method can be determined based on actual conditions.

[0077] In the description of this specification, reference to the terms "some embodiments" or "other embodiments" means that the specific features, structures, materials, or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic descriptions of the above terms do not necessarily refer to the same embodiment or example.

[0078] The technical features of the above-mentioned embodiments can be combined arbitrarily. In order to make the description concise, not all possible combinations of the technical features in the above-mentioned embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0079] The above-described embodiments merely represent several implementation methods of the present application. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the present application. It should be noted that a person of ordinary skill in the art may make various modifications and improvements without departing from the spirit of the present application, and these modifications and improvements fall within the scope of protection of the present application. Therefore, the scope of protection of the present application shall be determined by the appended claims.

Claims

1. A display screen communication device, comprising: a signal transmission module, configured to receive display source data transmitted from an external source, and modulate the display source data to emit an optical signal corresponding to the display source data; The signal receiving module has the same number as the display modules of the display screen, and each signal receiving module is connected to each display module in a one-to-one correspondence. The signal receiving module is used to receive the optical signal emitted by the signal transmission module and demodulate the received optical signal into corresponding display data so that the display module can display according to the display data.

2. The display screen communication device according to claim 1, wherein: The display screen is formed with a plurality of cavities, one of the cavities is provided with at least one display module and one signal transmission module, and the cavities are optically isolated from each other.

3. The display screen communication device according to claim 1 or 2 further includes a reflective component, which is arranged on a side of the display screen close to the signal receiving module, and the reflective component is arranged corresponding to the signal receiving module, and is used to reflect the light signal emitted by the signal transmission module to the signal receiving module.

4. The display screen communication device according to any one of claims 1 to 3, wherein: The optical signal emitted by the signal transmission module is transmitted in the form of flood light.

5. The display screen communication device according to any one of claims 1 to 4, wherein the signal transmission module comprises: Light-emitting element; The encoder is connected to the light emitting element and is used for receiving display source data transmitted from the outside and modulating the display source data to drive the light emitting element to emit a light signal corresponding to the display source data.

6. The display screen communication device according to claim 5, wherein: The signal receiving module includes: a light receiving element, configured to receive the light signal emitted by the light emitting element; The decoder is connected to the light receiving element and the display module respectively, and is used to demodulate the optical signal received by the light receiving element into corresponding display data, so that the display module can display according to the display data.

7. The display screen communication device according to claim 6, wherein: The light emitting element is a light emitting diode, and the light receiving element is a photosensitive diode.

8. The display screen communication device according to claim 7, wherein: A side of the display screen close to the signal receiving module is covered with a reflective coating.

9. The display screen communication device according to claim 7 or 8, wherein: The display module of the display screen includes: Display unit; The constant current driving unit is connected to the display unit and the signal receiving module respectively, and is used to receive the display data demodulated by the signal receiving module and drive the display unit to display according to the display data.

10. The display screen communication device according to any one of claims 1 to 9, wherein: The display source data is transmitted by the video data output device.

11. The display screen communication device according to any one of claims 1 to 10, wherein: The video data output device is a sending card.

12. The display screen communication device according to any one of claims 1 to 11, wherein: The signal transmission module is arranged at the bottom or other edge positions of the display screen.

13. The display screen communication device according to any one of claims 1 to 12, wherein: Each signal receiving module is connected to each display module in a one-to-one correspondence.

14. The display screen communication device according to claim 13, wherein: The signal receiving module or the display module connected thereto has a unique identifier, and the unique identifier is stored in the signal receiving module.

15. The display screen communication device according to any one of claims 9 to 14, wherein: The display screen includes a back bottom shell, a side of the display module away from the display unit is installed in the back bottom shell, and the optical signal transmitted by the signal transmission module is transmitted in the back bottom shell.

16. A display screen system comprising a display screen and the display screen communication device according to any one of claims 1 to 15.

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