Same-screen display device and display system

Abstract

The invention discloses a same-screen display device and a display system, which are characterized in that a wireless audio and video communication signal is received through a receiving end wireless communication module, the wireless audio and video communication signal is converted into audio and video digital data, an audio and video decoding module converts the audio and video digital data into a high-definition multimedia signal, and the high-definition multimedia signal is transmitted to the receiving end wireless communication module; the receiving end processing module receives a high-definition multimedia signal, outputs an audio signal to the audio output interface according to the high-definition multimedia signal and outputs a video signal to the video output interface, and the power supply module supplies power to the receiving end wireless communication module, the audio and video decoding module and the receiving end processing module according to power supply voltage. Therefore, the functions of video acquisition, wireless transmission, audio input and power management are integrated by a single device, the technical bottlenecks of a traditional scheme in transmission distance, resolution and multi-system compatibility are broken through, and the problem that the application scene of a same-screen display in the related technology is limited is solved.

Description

Technical Field

[0001] This application relates to the field of serial communication technology, and particularly to a screen mirroring display device and a display system. Background Art

[0002] Screen mirroring devices are widely used in scenarios such as classroom teaching, home entertainment, and conference presentations, and play an important role in enhancing user experience and convenience.

[0003] However, in related technologies, a wired screen mirroring device connects one end of a connection cable to a mobile terminal and the other end to a display device. Thus, there is a problem of limited application scenarios for screen mirroring. Summary of the Invention

[0004] In view of the above problems, this application provides a screen mirroring display device and a display system, which can solve the problem of limited application scenarios of the screen mirroring display in related technologies.

[0005] In the first aspect of the embodiments of this application, a screen mirroring display device is provided, including:

[0006] A receiving-end wireless communication module, configured to receive a wireless audio-video communication signal and convert the wireless audio-video communication signal into audio-video digital data;

[0007] An audio-video decoding module, configured to receive the audio-video digital data and convert the audio-video digital data into a high-definition multimedia signal;

[0008] A receiving-end processing module, connected to an audio output interface, a video output interface, and the audio-video decoding module, configured to receive the high-definition multimedia signal and output an audio signal to the audio output interface and output a video signal to the video output interface according to the high-definition multimedia signal;

[0009] A power module, connected to the receiving-end wireless communication module, the audio-video decoding module, and the receiving-end processing module, configured to access a supply voltage and supply power to the receiving-end wireless communication module, the audio-video decoding module, and the receiving-end processing module according to the supply voltage.

[0010] In some embodiments, the screen mirroring display device further includes:

[0011] A data transmission interface, connected to the receiving-end processing module, configured to store the audio-video data output by the receiving-end processing module when a storage medium is accessed.

[0012] In some embodiments, the screen mirroring display device further includes:

[0013] A video acquisition module, configured to acquire a video signal;

[0014] A video data conversion module, connected to the video acquisition module, for converting the video signal into a video digital signal;

[0015] An audio acquisition module, for converting the audio signal input from the audio acquisition end into an audio digital signal;

[0016] A transmitter processing module, connected to the video data conversion module and the audio acquisition module, for outputting a high-definition multimedia digital signal according to the video digital signal and the audio digital signal;

[0017] A transmitter wireless communication module, connected to the transmitter processing module, for converting the high-definition multimedia digital signal into a wireless audio-video communication signal for transmission.

[0018] In some embodiments, both the transmitter processing module and the audio-video decoding module include an AM8360D chip or an AM8275 chip.

[0019] In some embodiments, the audio acquisition module includes a CM9600 chip.

[0020] In some embodiments, the video data conversion module includes a GSV1201S chip or a GSV2201S chip.

[0021] In some embodiments, both the transmitter wireless communication module and the receiver wireless communication module include an AM9421 chip.

[0022] In some embodiments, the receiver processing module includes an MS2131 chip.

[0023] In some embodiments, the data transmission interface is a USB3.0 interface. The receiver processing module downloads video data through the data transmission interface and stores it in the storage medium, and loops out a video signal for video playback in a 4K 60Hz format.

[0024] The second aspect of the embodiments of the present application also provides a display system, and the display system includes the same-screen display device described in any one of the above embodiments.

[0025] Advantages of the embodiments of the present application: The receiving - end wireless communication module receives the wireless audio - video communication signal and converts the wireless audio - video communication signal into audio - video digital data. The audio - video decoding module converts the audio - video digital data into high - definition multimedia signals. The receiving - end processing module receives the high - definition multimedia signals and outputs an audio signal to the audio output interface and a video signal to the video output interface according to the high - definition multimedia signals. The power module supplies power to the receiving - end wireless communication module, the audio - video decoding module, and the receiving - end processing module according to the supply voltage, thereby realizing the functions of single - device integrated video acquisition, wireless transmission, audio input, and power management, breaking through the technical bottlenecks of traditional solutions in terms of transmission distance, resolution, and multi - system compatibility, and solving the problem that the application scenarios of the same - screen display in related technologies are limited.

[0026] The above description is only an overview of the technical solution of the present application. In order to be able to understand the technical means of the present application more clearly, it can be implemented according to the content of the specification. And in order to make the above and other purposes, features, and advantages of the present application more obvious and understandable, the following specifically describes the embodiments of the present application. Brief Description of the Drawings

[0027] By reading the detailed description of the preferred embodiments below, various other advantages and benefits will become clear to those of ordinary skill in the art. The drawings are only for the purpose of showing the preferred embodiments and are not considered to be a limitation of the present application. And in all the drawings, the same reference numerals are used to represent the same components. In the drawings:

[0028] Figure 1 It is the first structural schematic diagram of the same - screen display device provided by the embodiment of the present application;

[0029] Figure 2 It is the second structural schematic diagram of the same - screen display device provided by the embodiment of the present application;

[0030] Figure 3 It is the third structural schematic diagram of the same - screen display device provided by the embodiment of the present application. Detailed Embodiments

[0031] The following will describe in detail the embodiments of the technical solution of the present application with reference to the drawings. The following embodiments are only used to illustrate the technical solution of the present application more clearly, so they are only examples and cannot be used to limit the protection scope of the present application.

[0032] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the technical field to which this application belongs; the terms used herein are for the purpose of describing specific embodiments only and are not intended to limit this application; the terms "comprising" and "having" and any variations thereof in the specification and claims of this application and the above drawings are intended to cover non-exclusive inclusion.

[0033] In the description of the embodiments of this application, technical terms such as "first" and "second" are only used to distinguish different objects and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity, specific order or primary-secondary relationship of the indicated technical features. In the description of the embodiments of this application, the meaning of "a plurality of" is more than two, unless otherwise specifically defined.

[0034] Referring to "embodiments" herein means that specific features, structures or characteristics described in connection with the embodiments can be included in at least one embodiment of this application. The phrase "the second connection port" at various positions in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment mutually exclusive with other embodiments. Those skilled in the art explicitly and implicitly understand that the embodiments described herein can be combined with other embodiments.

[0035] In the description of the embodiments of this application, the term "and / or" is only a description of the association relationship of associated objects, indicating that there can be three relationships. For example, A and / or B can represent: A exists alone, A and B exist simultaneously, and B exists alone. In addition, the character " / " herein generally represents an "or" relationship between the associated objects before and after.

[0036] In the description of the embodiments of this application, the term "multiple frames" refers to two or more (including two).

[0037] In the description of the embodiments of this application, the orientation or positional relationship indicated by technical terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the embodiments of this application and simplifying the description, and does not indicate or imply that the indicated device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the embodiments of this application.

[0038] The screen mirroring device can be widely used in life and work. For example, in classroom teaching, the screen mirroring device can project the multimedia content on devices such as smartphones onto a large screen for synchronous display, improving teaching efficiency and interactivity; in home entertainment, users can watch movies, TV series, etc. on their mobile phones or tablets on a large screen, enhancing the viewing experience; in conference presentations, the screen mirroring device can share the laptop screen in real time, facilitating presentations and discussions. Through these functions and application scenarios, the screen mirroring device plays an important role in enhancing user experience and convenience. However, for current wired screen mirroring devices, one end of the connection cable is connected to the mobile terminal, and the other end is connected to the display device, so there is a problem of limited application scenarios for screen mirroring.

[0039] To solve the above technical problems, the embodiments of the present application provide a screen mirroring display device. Refer to Figure 1 As shown, the screen mirroring display device in the embodiments of the present application includes: a receiving end wireless communication module 300, an audio and video decoding module 100, a receiving end processing module 200, and a power supply module 400. The receiving end wireless communication module 300 is used to receive wireless audio and video communication signals and convert the wireless audio and video communication signals into audio and video digital data; the audio and video decoding module 100 is used to receive the audio and video digital data and convert the audio and video digital data into high-definition multimedia signals; the receiving end processing module 200 is connected to an audio output interface 510, a video output interface 520, and the audio and video decoding module 100. The receiving end processing module 200 is used to receive the high-definition multimedia signals and output audio signals to the audio output interface 510 and output video signals to the video output interface 520 according to the high-definition multimedia signals; the power supply module 400 is connected to the receiving end wireless communication module 300, the audio and video decoding module 100, and the receiving end processing module 200. The power supply module 400 is used to access the supply voltage and supply power to the receiving end wireless communication module 300, the audio and video decoding module 100, and the receiving end processing module 200 according to the supply voltage.

[0040] In this embodiment, the receiving end wireless communication module 300 receives wireless audio and video communication signals and converts the wireless audio and video communication signals into audio and video digital data. The audio and video decoding module 100 converts the audio and video digital data into high-definition multimedia signals. The receiving end processing module 200 receives the high-definition multimedia signals and outputs audio signals to the audio output interface 510 and outputs video signals to the video output interface 520 according to the high-definition multimedia signals. The power supply module 400 supplies power to the receiving end wireless communication module 300, the audio and video decoding module 100, and the receiving end processing module 200 according to the supply voltage, thereby realizing the functions of single-device integrated video acquisition, wireless transmission, audio input, and power management, breaking through the technical bottlenecks in transmission distance, resolution, and multi-system compatibility of traditional solutions, and solving the problem of limited application scenarios of screen mirroring displays in related technologies.

[0041] In some embodiments, the receiving - end wireless communication module 300, the audio - video decoding module 100, the receiving - end processing module 200, and the power module 400 are integrated on the signal receiving board.

[0042] In some embodiments, referring to Figure 2 As shown, the same - screen display device further includes: a data transmission interface 530. The data transmission interface 530 is connected to the receiving - end processing module 200. The data transmission interface 530 is used to store the audio - video data output by the receiving - end processing module 200 when a storage medium is accessed.

[0043] In some embodiments, referring to Figure 3 As shown, the same - screen display device further includes: a video acquisition module 720, a video data conversion module 730, an audio acquisition module 710, a transmitting - end processing module 740, and a transmitting - end wireless communication module 750. The video acquisition module 720 is used to acquire video signals; the video data conversion module 730 is connected to the video acquisition module 720, and the video data conversion module 730 is used to convert the video signals into video digital signals; the audio acquisition module 710 is used to convert the audio signals input by the audio acquisition end into audio digital signals; the transmitting - end processing module 740 is connected to the video data conversion module 730 and the audio acquisition module 710, and the transmitting - end processing module 740 is used to output high - definition multimedia digital signals according to the video digital signals and the audio digital signals; the transmitting - end wireless communication module 750 is connected to the transmitting - end processing module 740, and the transmitting - end wireless communication module 750 is used to convert the high - definition multimedia digital signals into wireless audio - video communication signals for transmission.

[0044] In some embodiments, the video acquisition module 720, the video data conversion module 730, the audio acquisition module 710, the transmitting - end processing module 740, and the transmitting - end wireless communication module 750 are integrated on the signal transmitting board.

[0045] In this embodiment, through the dual - module setting of the signal transmitting board and the signal receiving board, end - to - end wireless processing of audio - video signal acquisition, encoding, wireless transmission, decoding, and output is realized. In this way, full - link wirelessization between the receiving end and the transmitting end can be achieved, greatly expanding the application scenarios of the same - screen display device.

[0046] In some embodiments, the video capture module 720 can be a Type-C interface, which can be connected to a mobile terminal or a computer terminal. The video signal received by the Type-C interface is sequentially transmitted to the signal receiving board via the video data conversion module 730, the transmitter processing module 740, and the transmitter wireless communication module 750. In this way, full-link wireless transmission of the Type-C interface, HDMI, 5.8G / 2.4G Wi-Fi, and HDMI can be achieved.

[0047] In some embodiments, the transmitter processing module 740 is an AM8360D chip.

[0048] In this embodiment, the AM8360D chip can perform H.265 encoding on the HDMI signal, with a 50% increase in compression ratio, and can also perform AAC encoding on the audio signal, supporting a sampling rate of 48 kHz.

[0049] In some embodiments, the audio and video decoding module 100 includes an AM8360D chip or an AM8275 chip.

[0050] In this embodiment, the AM8360D chip or the AM8275 chip and its peripheral devices form the audio and video decoding module 100. The AM8360D chip or the AM8275 chip can decode the received wireless audio digital signal into a high-definition multimedia signal in accordance with the HDMI 2.0 standard. The AM8360D chip or the AM8275 chip supports HDR10+, a color depth of 10 bits, and a color gamut covering BT.2020.

[0051] In some embodiments, the HDMI2.0 TMDS signal is input to the AM8360D chip or the AM8275 chip, and the AM8360D chip or the AM8275 chip performs format video encoder and image compression processing on it.

[0052] In some embodiments, an OFDM modem is integrated in the AM8360D chip, which can support an 80MHz channel bandwidth.

[0053] In some embodiments, the audio capture module 710 includes a CM9600 chip.

[0054] In this embodiment, the CM9600 chip and its peripheral devices form the audio capture module 710. The CM9600 audio encoding chip collects signals through the MIC input, sends them to the processor for compression processing, and packs the data to be sent to the WIFI module.

[0055] In some embodiments, when connecting headphones or audio devices, the PHONEJACK STEREO SW switch of the headphone jack is turned off, and Mic_IN changes from high level to low level. MS2131 converts the D+ / D- signal into AUDIO L / R signals and outputs them to the upstream host for data transmission.

[0056] In some embodiments, the CM9600 chip can implement the conversion between microphone analog signals and digital signals. The CM9600 chip supports the input / output of the TWS stereo mode, has a built-in digital noise reduction algorithm, and the signal-to-noise ratio is ≥90dB.

[0057] In some embodiments, the CM9600 chip collects audio through a 3.5mm interface or a built-in microphone, converts it into an I2S digital signal, and forwards it to the transmitting end processing module 740740.

[0058] In some embodiments, the video capture module 720 can be a Type-C interface or an HDMI interface. The video capture module 720 can adapt to and be compatible with the Type-C DP Alt Mode or HDMI output of mobile phones, tablets, and laptops.

[0059] In some embodiments, the video data conversion module 730 includes a GSV1201S chip or a GSV2201S chip.

[0060] In this embodiment, the GSV1201S chip or the GSV2201S chip and its peripheral devices form the video data conversion module 730. The GSV1201S chip or the GSV2201S chip converts the Type-C or HDMI video signal into an HDMI 2.0 digital signal. The GSV1201S chip or the GSV2201S chip can implement the conversion between the Type-C video stream and the HDMI signal, support the conversion from Type-C DP Alt Mode to HDMI2.0, and it has a built-in EDID management unit.

[0061] In some embodiments, the video signal is converted into a video digital signal by a chip of model GSV1201S or model GSV2201S. The chip of model GSV1201S or model GSV2201S is a highly integrated single-chip transmission interface alternative mode and power output 3.0 USB-C device controller, which is used for applications such as USB-C video adapters and USB-C multi-functional docking stations. Its D+ / D- 2.0ePHY integration supports charger use of the D+ / D- protocol handshake.

[0062] In some embodiments, the transmitting end wireless communication module 750 includes an AM9421 chip.

[0063] In this embodiment, the AM9421 chip and its peripheral devices can form a transmitting-end wireless communication module 750, which is used to convert high-definition multimedia digital signals into wireless audio-video communication signals for transmission.

[0064] In some embodiments, the transmitting-end wireless communication module 750 composed of the AM9421 chip and its peripheral devices uses the Ethernet transmission format to transmit wireless audio-video communication signals in the form of 2.4GHZ / 5.8GHZ (ultra-high frequency) electromagnetic waves for RGB888.

[0065] In some embodiments, the receiving-end wireless communication module 300 includes an AM9421 chip.

[0066] In this embodiment, the AM9421 chip and its peripheral devices can form a receiving-end wireless communication module 300, which is used to receive wireless audio-video communication signals in the form of 2.4Gbit-5.8Gbit / s (ultra-high frequency) electromagnetic waves and convert them into audio-video digital data.

[0067] In this embodiment, the AM9421 chip has a dynamic voltage regulation function, with an output voltage range of 5V-20V, and has the ability of signal amplification and anti-interference.

[0068] In some embodiments, the receiving-end processing module 200 includes an MS2131 chip.

[0069] In this embodiment, the MS2131 chip decodes and processes the received HDMI signal, and loops out the decoded HDMI signal to the display device. The MS2131 chip supports decoding HDMI signals in the 4K / 60Hz format.

[0070] In some embodiments, when the detected 5.8G signal strength > -65dBm, the 5.8G frequency band is enabled, otherwise it is automatically switched to the 2.4G frequency band.

[0071] Through the screen mirroring device in this embodiment, 4K60Hz HDR video transmission (downward compatible with 1080P) can be achieved, and a wireless transmission channel with a super long distance of 1500 meters is built through the receiving-end wireless communication module 300 and the transmitting-end wireless communication module 750, supporting automatic switching of dual frequency bands (5.8G / 2.4G), integrating PD3.0 fast charging and MIC audio input, and being cross-operating system compatible (Windows XP / Vista / 7 / 10, Android, iOS, etc.).

[0072] In some embodiments, the data transmission interface 530 is a USB3.0 interface. The receiving-end processing module 200 downloads video data through the data transmission interface 530 and stores it in the storage medium, and loops out the video signal for video playback in the 4k60Hz format.

[0073] In some embodiments, USB3.0 data can be collected through the UP USB interface TX / RX channel to download video data for storage, and the video signal 4K60HZ is looped out to the display for playback. The 18th pin of the HDMI connector supplies 5V power to the display. After the display receives the 5V level, the 19th pin of the display HDMI detects the high level TX0_HPD and will send it to MS2131 to identify the EDIE resolution required by the display. The 1, 3, 4, 6, 7, 9, 10, 12 TMDS signals of the HDMI connector are sent to the HDMI display.

[0074] In some embodiments, the power supply module 400 can be configured with a supply current of 5V - 20V / 5A and supply power to the receiving end wireless communication module 300, the audio and video decoding module 100, and the receiving end processing module 200 according to Type-C (PD100W).

[0075] In this embodiment, when the power supply module 400 is connected to a PD adapter, the PD adapter sends a power supply capability information to the corresponding power demand device (such as: PC or PAD side). After the power demand device receives the power supply capability information, it sends a power demand information to the PD adapter, and the PD adapter adjusts the voltage and current for power supply. At the same time, when a mobile device is inserted, it will first identify whether it is in 2.0 format or has RX+, RX- / TX+, TX- signals through the DM_U-C and DP_U-C signals, and then enter the data mode above 3.0.

[0076] The embodiment of the present application also provides a display system, and the display system includes a same-screen display device as described in any one of the above embodiments.

[0077] In this embodiment, the receiving end wireless communication module 300 receives the wireless audio and video communication signal and converts the wireless audio and video communication signal into audio and video digital data. The audio and video decoding module 100 converts the audio and video digital data into high-definition multimedia signals. The receiving end processing module 200 receives the high-definition multimedia signal and outputs an audio signal to the audio output interface 510 and a video signal to the video output interface 520 according to the high-definition multimedia signal. The power supply module 400 supplies power to the receiving end wireless communication module 300, the audio and video decoding module 100, and the receiving end processing module 200 according to the supply voltage, thereby realizing the functions of single-device integrated video acquisition, wireless transmission, audio input, and power management, breaking through the technical bottlenecks in transmission distance, resolution, and multi-system compatibility of traditional solutions, and solving the problem that the same-screen display in related technologies has limited application scenarios.

[0078] Those skilled in the art can clearly understand that, for the convenience and brevity of description, only the above division of each functional unit and module is used as an example. In actual applications, the above functions can be allocated to different functional units and modules according to needs, that is, the internal structure of the device can be divided into different functional units or modules to complete all or part of the functions described above. Each functional unit and module in the embodiments can be integrated into a processing unit, or each unit can exist physically alone, or two or more units can be integrated into one unit. In addition, the specific names of each functional unit and module are only for the convenience of mutual distinction and do not limit the protection scope of this application. The specific working processes of the units and modules in the above system can refer to the corresponding processes in the foregoing method embodiments and will not be elaborated herein.

[0079] In the above embodiments, the descriptions of the respective embodiments have their own emphases. For parts not detailed or recorded in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0080] In the embodiments provided in this application, it should be understood that the disclosed devices and methods can be implemented in other ways. For example, the electronic device embodiments described above are only illustrative. For example, the division of modules or units is only a logical function division, and there can be other division methods in actual implementation. For example, multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the displayed or discussed coupling or direct coupling or communication connection between each other can be an indirect coupling or communication connection through some interfaces, devices or units, and can be in electrical, mechanical or other forms.

[0081] The units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they can be located in one place or distributed to multiple network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0082] In addition, each functional unit in the various embodiments of this application can be integrated into a processing unit, or each unit can exist physically alone, or two or more units can be integrated into one unit. The above integrated units can be implemented in the form of hardware or in the form of software functional units.

[0083] The above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit it; although the present application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application, and should all be included in the protection scope of the present application.

Claims

1. A same-screen display device, characterized in that: include: A receiving end wireless communication module, used for receiving wireless audio and video communication signals and converting the wireless audio and video communication signals into audio and video digital data; An audio and video decoding module, used for receiving the audio and video digital data and converting the audio and video digital data into a high-definition multimedia signal; A receiving end processing module, connected to the audio output interface, the video output interface and the audio and video decoding module, for receiving the high-definition multimedia signal, and outputting an audio signal to the audio output interface and a video signal to the video output interface according to the high-definition multimedia signal; A power supply module is connected to the receiving end wireless communication module, the audio and video decoding module and the receiving end processing module, and is used to access the power supply voltage and power the receiving end wireless communication module, the audio and video decoding module and the receiving end processing module according to the power supply voltage.

2. The same-screen display device according to claim 1, characterized in that: The same-screen display device also includes: The data transmission interface is connected to the receiving end processing module and is used to store the audio and video data output by the receiving end processing module when a storage medium is connected.

3. The same-screen display device according to claim 1, characterized in that: The same-screen display device also includes: A video acquisition module, used for acquiring video signals; A video data conversion module, connected to the video acquisition module, for converting the video signal into a video digital signal; The audio acquisition module is used to convert the audio signal input by the audio acquisition terminal into an audio digital signal; A transmitting end processing module, connected to the video data conversion module and the audio acquisition module, and configured to output a high-definition multimedia digital signal according to the video digital signal and the audio digital signal; The transmitting end wireless communication module is connected to the transmitting end processing module and is used to convert the high-definition multimedia digital signal into a wireless audio and video communication signal for transmission.

4. The same-screen display device according to claim 3, characterized in that: The transmitting end processing module and the audio and video decoding module both include an AM8360D chip or an AM8275 chip.

5. The same-screen display device according to claim 3, characterized in that: The audio acquisition module includes a CM9600 chip.

6. The same-screen display device according to claim 3, characterized in that: The video data conversion module includes a GSV1201S chip or a GSV2201S chip.

7. The same-screen display device according to claim 3, characterized in that: The transmitting end wireless communication module and the receiving end wireless communication module include AM9421 chips.

8. The same-screen display device according to any one of claims 1 to 7, characterized in that: The receiving end processing module includes an MS2131 chip.

9. The same-screen display device according to claim 2, characterized in that: The data transmission interface is a USB3.0 interface. The receiving end processing module downloads the video data through the data transmission interface and stores it in the storage medium, and loops out the video signal to play the video in the format of 4k 60Hz.

10. A display system, characterized in that: The display system comprises the same-screen display device as described in any one of claims 1 to 9.

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