Display device

Abstract

The present application is suitable for the technical field of display devices, and provides a display device. The display device comprises: a display motherboard, provided with a reserved interface unit; an adapter board, provided with a first interface unit connected to the reserved interface unit and a second interface unit connected to the first interface unit; and a power amplifier board, connected to the second interface unit in a plug-socket connection mode.

Description

Display devices

[0001] Cross-references to related applications

[0002] This application claims priority to Chinese Patent Application No. 202420998379.9, entitled “Display Device”, filed on May 9, 2024, the entire contents of which are incorporated herein by reference. Technical Field

[0003] This application belongs to the field of display device technology, and more specifically, relates to a display device. Background Technology

[0004] Interactive large screens highly integrate people with digital content, providing people with a high-quality digital life experience. They are applied in commercial complexes, exhibition halls, smart advertising, smart tourism, smart homes, financial services, and telecommunications operators.

[0005] Currently, all delivered large screens are integrated units, and the modules cannot be separated individually, which brings great difficulties and increases costs to assembly, transportation, and after-sales service. Their circuit connection is basically through the motherboard, which is inefficient in assembly, inconvenient to disassemble, has high after-sales costs, and has a single form factor, failing to provide different customers with choices. Summary of the Invention

[0006] This application provides a display device that solves the technical problems of low assembly efficiency and limited form factor in related technologies.

[0007] In a first aspect, this application provides a display device, comprising: a display motherboard having a reserved interface unit; an adapter board having a first interface unit connected to the reserved interface unit and a second interface unit connected to the first interface unit; and a power amplifier board connected to the second interface unit via a plug-in mating mode.

[0008] According to an embodiment of the first aspect of this application, the display motherboard, the adapter board, and the power amplifier board are detachably connected.

[0009] According to any of the foregoing embodiments of the first aspect of this application, the adapter board or the power amplifier board has a reserved audio interface.

[0010] According to any of the foregoing embodiments of the first aspect of this application, the power amplifier board is provided with a plug unit, and the plug unit is connected to the second interface unit through a plug docking mode.

[0011] According to any of the foregoing embodiments of the first aspect of this application, the plug unit includes: a high-speed HDMI plug, a TYPE-C plug, a USB 3.0 plug, an NFC plug, and an optical sensor plug. The second interface unit is provided with multiple sockets, which correspond to the high-speed HDMI plug, the TYPE-C plug, the USB 3.0 plug, the NFC plug, and the optical sensor plug, respectively.

[0012] According to any of the foregoing embodiments of the first aspect of this application, the second interface unit includes multiple plugs, and the power amplifier board is provided with multiple sockets, with each plug and each socket respectively connected in a plug-to-socket mode.

[0013] According to any of the foregoing embodiments of the first aspect of this application, the display device further includes a front panel, and the power amplifier board further includes a third interface unit, which is connected to the front panel.

[0014] According to any of the foregoing embodiments of the first aspect of this application, the third interface unit includes an HDMI interface, a TYPE-C interface, a USB 3.0 interface, a TOUCH 2.0 interface, and a MIC interface. The display device includes an HDMI data cable, a TYPE-C data cable, a USB 3.0 data cable, a TOUCH 2.0 interface, and a MIC data cable. The HDMI interface is connected to the front panel via the HDMI data cable, the TYPE-C interface is connected to the front panel via the TYPE-C data cable, the USB 3.0 interface is connected to the front panel via the USB 3.0 data cable, the TOUCH 2.0 interface is connected to the front panel via the TOUCH 2.0 data cable, and the MIC interface is connected to the front panel via the MIC data cable. The third interface unit also includes a button IR LED light sensor module, which is connected to the front panel.

[0015] According to any of the foregoing embodiments of the first aspect of this application, the third interface unit further includes an NFC interface, and the display device further includes an NFC module, with the NFC interface connected to the NFC module.

[0016] According to any of the foregoing embodiments of the first aspect of this application, the display device includes a left speaker and a right speaker, which are connected to a third interface unit.

[0017] According to any of the foregoing embodiments of the first aspect of this application, the power amplifier board has a rear speaker and a front speaker.

[0018] According to any of the foregoing embodiments of the first aspect of this application, the display device further includes an audio board, a left pickup board, and a right pickup board. The audio board includes a fourth interface unit and an audio board interface. The fourth interface unit is connected to the third interface unit, and the audio board interface is connected to the left pickup board and the right pickup board.

[0019] According to any of the foregoing embodiments of the first aspect of this application, the power amplifier board has a 4-pin back sampling connector, and the audio board has a 2-pin left back sampling connector and a 2-pin right back sampling connector, both of which are connected to the 4-pin back sampling connector.

[0020] According to any of the foregoing embodiments of the first aspect of this application, the audio board is further provided with a microphone plug, which is connected to the display motherboard via the audio board's USB interface.

[0021] According to any of the foregoing embodiments of the first aspect of this application, the display device further includes a touch frame, and the adapter board further includes a fifth interface unit, which is connected to the touch frame.

[0022] The beneficial effects of the display device provided in this application are as follows: Compared with related technologies, the display device of this application not only has a display function, but also has other functions different from the display function because the display motherboard is connected to the power amplifier board through an adapter board, connected to the touch frame through the adapter board, and connected to the front panel, NFC module, audio board and other functional modules through the power amplifier board. This provides users with more choices, improves the user experience, and each functional module is detachable. This embodiment provides a flexible circuit structure and form factor for customers to choose from, facilitates assembly at the factory, and allows for flexible delivery to different customers. When manufacturing the display device in this way, multiple independent production lines can be used to produce the display motherboard, adapter board, power amplifier board and each functional module separately, and then different schemes can be selected for assembly. This not only avoids the need to manufacture the entire display device at once, achieving the effect of reducing manufacturing difficulty and improving production efficiency, but also eliminates redundant accessories, reducing costs, thereby meeting the usage needs of different users. Assembly and after-sales service eliminate the cumbersome disassembly of the heavy back panel, thus reducing costs. This solution is more usable and aesthetically pleasing, making the product more valuable. Attached Figure Description

[0023] Figure 1 is a schematic diagram of the structure of the display device provided in an embodiment of this application;

[0024] Figure 2 is another structural schematic diagram of the display device provided in an embodiment of this application;

[0025] The detailed list of reference numerals in the above figures is as follows: 11. Display mainboard; 111. Reserved interface unit; 12. Adapter board; 121. First interface unit; 122. Second interface unit; 123. Fifth interface unit; 13. Power amplifier board; 131. Plug unit; 132. Third interface unit; 14. Front panel; 15. Button IR LED light sensor module; 16. NFC module; 17. Left speaker; 18. Right speaker; 19. Audio board; 191. Fourth interface unit; 20. Left pickup board; 21. Right pickup board; 22. Touch frame. Detailed Implementation

[0026] To provide a clearer understanding of the technical features, objectives, and effects of this application, the specific implementation methods of this application will be further described in detail below with reference to the accompanying drawings and embodiments. The following embodiments are for illustrative purposes only and are not intended to limit the scope of protection of this application. Other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort should all fall within the scope of protection of this application.

[0027] In the description of this application, it should be noted that the terms "upper", "lower", "front", "back", "left", "right", "inner", and "outer", which indicate direction, are only used to illustrate the structure of this application more clearly in conjunction with the accompanying drawings, and this application is not limited thereto.

[0028] In the description of this application, it should be understood that the numbering itself, such as "first", "second", etc., is only used to distinguish the described objects and has no sequential or technical meaning, and should not be construed as specifying or implying the importance of the described objects.

[0029] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0030] In the description of this application, it should be noted that, unless otherwise defined, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art. The terminology used in this application is for the purpose of describing specific embodiments only and is not intended to limit the application. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0031] As described in the background section, interactive large screens highly integrate people with digital content, providing a high-quality digital life experience. They are applied in commercial complexes, showrooms, smart advertising, smart tourism, smart homes, financial services, and telecommunications. Currently, delivered large screens are all integrated units, with each module unable to be disassembled individually. This causes significant difficulties and increases costs in assembly, transportation, and after-sales service. Their circuit connections are primarily via motherboards, resulting in low assembly efficiency, inconvenient disassembly, high after-sales costs, and a limited form factor, failing to offer choices for different customers.

[0032] Referring to Figure 1, in order to solve the above problems, according to one aspect of this application, an embodiment of this application provides a display device, the display device including a display motherboard 11, which is provided with a reserved interface unit 111; an adapter board 12, which is provided with a first interface unit 121 connected to the reserved interface unit 111 and a second interface unit 122 connected to the first interface unit 121; and a power amplifier board 13, which is connected to the second interface unit 122 via a plug-in mating mode.

[0033] In this embodiment, the display device is generally an advertising machine, suitable for use in shopping malls, stations, building corridors, docks, elevators, and other similar locations. The information displayed on the mainboard 11 is one or more of text, icons, images, and videos. In other embodiments, the mainboard 11 may also be a television or other pure display device; this is not a limitation. The specific structure of any advertising machine, television, or other pure display device is common knowledge to those skilled in the art and will not be described in detail here. The display device can also be a business machine suitable for conference rooms, schools, etc. The power amplifier board 13 is a circuit board composed of power amplifier circuit devices. Its function is to amplify the weak signal from the audio source or preamplifier. The adapter board 12 can collect the signals from the mainboard 11 and forward them to the power amplifier board 13. On the power amplifier board 13, the signals from the mainboard 11 are collected and centrally designed, making this type of signal combination more complete, flexible, convenient to use, and novel in style. The adapter board 12 has more powerful combination functions and offers greater customer choice. The adapter board 12 is used to realize the conversion of various signals.

[0034] In one embodiment of this application, an audio interface is reserved on the adapter board 12 or the power amplifier board 13, which can be used to connect an external speaker. When the display motherboard 11 detects that an external speaker is connected to the audio interface via 3.3V or ground, it directly outputs the audio signal to the external speaker for playback, instead of outputting audio to the built-in speaker.

[0035] The display device of this application has a display function, and also has the functions provided by the various signals converted by the power amplifier board 13, providing users with more choices and improving the user experience. Meanwhile, due to the adapter board 12's adapter function, the display motherboard 11, adapter board 12, and power amplifier board 13 can be detachably connected. Therefore, during display device assembly, three independent production lines can be used to manufacture the display motherboard 11, adapter board 12, and power amplifier board 13 respectively. Then, the display motherboard 11 and adapter board 12 are assembled, and the power amplifier board 13 and adapter board 12 are assembled, thereby assembling the display device. By assembling the display device in the above manner, not only is it possible to avoid manufacturing the entire display device at once, thus reducing manufacturing difficulty and improving production efficiency, but also, by producing display motherboards 11, adapter boards 12, and power amplifier boards 13 of different shapes, and providing functional modules 400 with different functional requirements to be paired with the same type of power amplifier board 13, different specifications of display devices can be obtained. This satisfies the usage needs of different users and improves the situation of low assembly efficiency, inconvenient disassembly, single form, and inability to provide different customer choices for display devices.

[0036] Referring to Figure 1, in one embodiment, the power amplifier board 13 is provided with a plug unit 131, which is connected to the second interface unit 122 via a plug-in connection. The power amplifier board 13 is inserted into the second interface unit 122 via the plug unit 131, achieving a plug-in connection between the power amplifier board 13 and the adapter board 12. This solves the problems caused by signal conversion via the adapter board 12, which results in longer signal lines, attenuation and delay of USB 2.0, USB 3.0, and HDMI signals, and affects the Signal Quality Test (SQ Test) and Eye Diagram Template Test. It effectively shortens the signal line length, improves the stability and effectiveness of signal transmission, and adds a driver chip to the circuit to meet signal integrity requirements. The power amplifier board 13 also includes a power amplifier circuit (AMP) to amplify the transmitted signal and improve signal transmission effectiveness.

[0037] In this embodiment, the plug unit 131 includes a high-speed HDMI plug, a TYPE-C plug, a USB 3.0 plug, an NFC plug, and an optical sensor plug. The second interface unit is provided with multiple sockets, which correspond to the high-speed HDMI plug, the TYPE-C plug, the USB 3.0 plug, the NFC plug, and the optical sensor plug, respectively. The plug unit 131, through its multiple plugs, connects to the multiple sockets of the second interface unit 122, enabling the display of high-speed HDMI signals, TYPE-C signals, USB 3.0, NFC, audio pickup, audio algorithms, human body sensing, and AMP convergence design. This makes the signal combination more complete, flexible, convenient, and innovative, enhancing the functionality of the adapter board 12 and providing customers with greater choice.

[0038] In addition, the ability to connect other functional boards or modules through the power amplifier board 13 and the adapter board 12 not only gives the display device more functions and provides users with more choices, but also makes it easier for users to flexibly assemble according to actual needs, thus improving the ease of use.

[0039] In one embodiment, the second interface unit 122 includes multiple plugs, and the power amplifier board 13 is provided with multiple sockets. Each plug and each socket are connected in a plug-and-play manner. The number of sockets may vary depending on the function. The adapter board 12 connects the power amplifier board 13 and the adapter board 12 in a plug-and-play manner by connecting the multiple plugs in the second interface unit 122 to the multiple sockets in the power amplifier board 13, thereby shortening the signal line length.

[0040] In this embodiment, referring to FIG2, the display device further includes a front panel 14, and the power amplifier board 13 further includes a third interface unit 132, which is connected to the front panel 14. The signal detected by the front panel 14 is amplified by the power amplifier board 13 and transmitted to the display mainboard 11 through the adapter board 12, thereby expanding the functions and making the function board detachable, which is convenient for customers to choose different solutions.

[0041] The third interface unit 132 includes an HDMI interface, a Type-C interface, a USB 3.0 interface, a Touch 2.0 interface, and a microphone interface. The display device includes an HDMI data cable, a Type-C data cable, a USB 3.0 data cable, a Touch 2.0 interface, and a microphone data cable. The HDMI interface is connected to the front panel 14 via the HDMI data cable. The Type-C interface is connected to the front panel 14 via the Type-C data cable. The USB 3.0 interface is connected to the front panel 14 via the USB 3.0 data cable. The Touch 2.0 interface is connected to the front panel 14 via the Touch 2.0 data cable. The microphone interface is connected to the front panel 14 via the microphone data cable. The power amplifier board 13 is connected to the front panel 14 through the multiple interfaces provided in the third interface unit 132 to transmit HDMI signals, Type-C signals, USB 3.0 signals, Touch 2.0 signals, and microphone signals respectively, thereby realizing the extended functions of the front panel 14.

[0042] The display device also includes a button IR LED light sensor module 15, which is connected to the front panel 14. The signal sensed by the button IR LED light sensor module 15 is transmitted to the adapter board 12 through the front panel 14 and the power amplifier board 13, and then forwarded to the display motherboard 11 through the adapter board 12. The display motherboard 11 performs relevant processing based on the received IR LED light sensor to realize the corresponding function.

[0043] The third interface unit 132 also includes NFC (Near Field Communication), and the display device further includes an NFC module 16, with the NFC interface connected to the NFC module 16. The NFC module 16, connected to the third interface unit 132, transmits near field communication signals through the power amplifier board 13 to the adapter board, thereby forwarding the near field communication signals and realizing the near field communication function.

[0044] In this embodiment, the display device includes a left speaker 17 and a right speaker 18, which are connected to the third interface unit 132 to realize audio output function. The power amplifier board 13 can have rear speakers and front speakers respectively, which are detected and identified by the MT9679 GPIO chip. When the front board 14 is plugged in, the GPIO port changes from high level to low level, and the sound from the rear speaker is output by the MT9679 MUTE chip and then output by the front 2*15W speaker.

[0045] In one embodiment, the display device further includes an audio board 19, a left pickup board 20, and a right pickup board 21. The audio board 19 includes a fourth interface unit 191 and an audio board interface. The fourth interface unit 191 is connected to the third interface unit 132, and the audio board interface is connected to the left pickup board 20 and the right pickup board 21. The audio board 19 is connected to the left pickup board 20 and the right pickup board 21 through the audio board interface to realize directional sound pickup. The audio board 19 is used for audio signal preprocessing, including but not limited to directional sound pickup, AI noise reduction, echo cancellation, reverberation suppression, and voice enhancement. It is connected to the power amplifier board 13 through the fourth interface unit 191 to transmit the preprocessed audio signal to the adapter board 12, thereby forwarding the audio signal and realizing the audio input function. The power amplifier board 13 has a 4-pin echo pickup connector that is connected to the left and right echo pickup connectors 2-pin*2 of the audio board 19 for AI noise reduction, echo cancellation, reverberation suppression, and voice enhancement. The audio board 19 is also equipped with a pickup plug, which transmits audio data to the display motherboard 11 via the audio board's USB port.

[0046] In this embodiment, the power amplifier board 13 is at least one of the following: a speaker for playing sound and audio output, a front-panel interface for connecting other devices or modules, a front-panel button for triggering specific functions or operation buttons, an array microphone for noise suppression and voice recognition, and NFC for contactless authentication and data transmission.

[0047] In this embodiment, the display device further includes a touch frame 22, and the adapter board 12 further includes a fifth interface unit 123, which is connected to the touch frame 22. The touch frame 22 is used for components such as a magnetic pen for drawing and interaction on the screen. The adapter board 12 receives touch signals transmitted by the touch frame 22 through the fifth interface unit 123 and forwards them to the display motherboard 11, thereby realizing the touch interaction function of the display device.

[0048] In this embodiment, the signals from the display motherboard 11 are gathered on the adapter board 12, and then connected to the power amplifier board 13 via a plug connection mode. On the power amplifier board 13, the high-speed HDMI signal, TYPE-C signal, USB 3.0, NFC, voice pickup, audio algorithm, human body sensing, and AMP from the display motherboard 11 are converged and centrally designed, making this type of signal combination more complete, flexible, convenient to use, and novel in style. The adapter board 12 has more powerful combination functions and more choices for customers.

[0049] In this embodiment, the display motherboard 11 includes a display screen body, which is used to display information. The specific structure of the display screen body is common knowledge to those skilled in the art and will not be described in detail here. When a user touches the touch frame 22, the touch frame 22 converts the touch action into an electrical signal and feeds back the analyzed electrical signal to the adapter board 12. This electrical signal can be fed back to the display screen body through the display motherboard 11 so that the display screen body can display the required information. At the same time, this electrical signal can also be fed back to the power amplifier board 13 through the adapter board 12 so that the power amplifier board 13 can execute the required instructions. When a user issues an instruction to the display motherboard 11, the display motherboard 11 converts the instruction into an electrical signal and feeds back the analyzed electrical signal to the adapter board 12. This electrical signal is fed back to the power amplifier board 13 through the adapter board 12 so that the power amplifier board 13 can execute the required instructions.

[0050] In summary, the display device provided in this embodiment has at least the following beneficial technical effects: The display device of this application not only has a display function, but also, because the display motherboard 11 is connected to the power amplifier board 13 via the adapter board 12, and to the touch frame 22 via the adapter board 12, and to functional modules such as the front panel 14, NFC module 16, and audio board 19 via the power amplifier board 13, it also has other functions different from the display function, providing users with more choices and improving the user experience. Furthermore, each functional module is detachably connected. This embodiment provides a flexible circuit structure and form factor for customers to choose from, facilitates assembly at the factory end, and allows for flexible delivery to different customers. When manufacturing display devices in this way, multiple independent production lines can be used to produce the display motherboard 11, adapter board 12, power amplifier board 13, and various functional modules separately. Then, different solutions can be selected for assembly. This not only avoids the need to manufacture the entire display device at once, reducing manufacturing difficulty and increasing production efficiency, but also eliminates unnecessary accessories, lowering costs. This meets the needs of different users, and simplifies assembly and after-sales service by eliminating the tedious disassembly of the heavy back panel, further reducing costs. This solution is more usable and aesthetically pleasing, making the product more valuable.

[0051] The above description is merely a preferred embodiment of this application, but the scope of protection of this application is not limited thereto. It should be noted that, for those skilled in the art, several equivalent obvious modifications and / or equivalent substitutions can be made without departing from the technical principles of this application, and these obvious modifications and / or equivalent substitutions should also be considered within the scope of protection of this application.

Claims

1. A display device, comprising: The display motherboard (11) is equipped with a reserved interface unit (111); The adapter board (12) is provided with a first interface unit (121) connected to the reserved interface unit (111) and a second interface unit (122) connected to the first interface unit (121); The power amplifier board (13) is connected to the second interface unit (122) via a plug-in connection.

2. The display device according to claim 1, wherein, The display motherboard, the adapter board, and the power amplifier board are detachably connected.

3. The display device according to claim 1, wherein, The adapter board or the power amplifier board has a reserved audio interface.

4. The display device according to claim 1, wherein, The power amplifier board (13) is provided with a plug unit (131), which is connected to the second interface unit (122) through a plug docking mode.

5. The display device according to claim 4, wherein, The plug unit (131) includes a high-speed HDMI plug, a TYPE-C plug, a USB 3.0 plug, an NFC plug, and an optical sensor plug. The second interface unit (122) is provided with multiple sockets, which correspond to the high-speed HDMI plug, the TYPE-C plug, the USB 3.0 plug, the NFC plug, and the optical sensor plug, respectively.

6. The display device according to claim 1, wherein, The second interface unit (122) includes multiple plugs, and the power amplifier board (13) is provided with multiple sockets. Each plug and each socket are connected in a plug-to-socket manner.

7. The display device according to claim 1, wherein, The display device further includes a front panel (14), and the power amplifier board (13) further includes a third interface unit (132), which is connected to the front panel (14).

8. The display device according to claim 7, wherein, The third interface unit (132) includes an HDMI interface, a TYPE-C interface, a USB 3.0 interface, a TOUCH 2.0 interface, and a MIC interface. The display device includes an HDMI data cable, a TYPE-C data cable, a USB 3.0 data cable, a TOUCH 2.0 interface, and a MIC data cable. The HDMI interface is connected to the front panel (14) via the HDMI data cable. The TYPE-C interface is connected to the front panel (14) via the TYPE-C data cable. The USB 3.0 interface is connected to the front panel (14) via the USB 3.0 data cable. The TOUCH 2.0 interface is connected to the front panel (14) via the TOUCH 2.0 data cable. The MIC interface is connected to the front panel (14) via the MIC data cable. The display device also includes a button IR LED light sensor module (15), which is connected to the front panel (14).

9. The display device according to claim 7, wherein, The third interface unit (132) further includes an NFC interface, and the display device further includes an NFC module (16), the NFC interface being connected to the NFC module (16).

10. The display device according to claim 7, wherein, The display device includes a left speaker (17) and a right speaker (18), which are connected to the third interface unit (132).

11. The display device according to claim 7, wherein, The amplifier board has a rear speaker and a front speaker.

12. The display device according to any one of claims 7 to 11, wherein, The display device further includes an audio board (19), a left pickup board (20), and a right pickup board (21). The audio board (19) includes a fourth interface unit (191) and an audio board interface. The fourth interface unit (191) is connected to the third interface unit (132), and the audio board interface is connected to the left pickup board (20) and the right pickup board (21).

13. The display device according to claim 12, wherein, The power amplifier board has a 4-pin back sampling connector, and the audio board has a 2-pin left back sampling connector and a 2-pin right back sampling connector. Both the 2-pin left back sampling connector and the 2-pin right back sampling connector are connected to the 4-pin back sampling connector.

14. The display device according to claim 12, wherein, The audio board is also equipped with a microphone plug, which is connected to the display motherboard via the audio board's USB interface.

15. The display device according to claim 12, wherein, The display device further includes a touch frame (22), and the adapter board (12) further includes a fifth interface unit (123), which is connected to the touch frame (22).

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