Double-screen adapter device and display equipment

Abstract

The utility model provides a double-screen adapter device and display equipment, and relates to the technical field of electronic circuits. The double-screen adapter device comprises an HDMI (High Definition Multimedia Interface) input module, an adapter module, an output module and a logic control module, the HDMI input module is provided with an HDMI interface seat, and the HDMI interface seat is connected with a signal source; the switching module comprises a video signal conversion circuit, and the video signal conversion circuit is connected with the HDMI interface seat; the output module comprises a first output unit and a second output unit; the first output unit and the second output unit are respectively connected with the video signal conversion circuit; and the logic control module is respectively connected with the HDMI input module and the switching module. The double-screen adapter device can achieve the technical effect of improving the convenience of double-screen display.

Description

Technical Field

[0001] The present application relates to the field of electronic circuit technology, and in particular to a dual-screen adapter device and a display apparatus. Background Art

[0002] At present, the rise of dual-screen monitors is related to the changes in modern work and entertainment needs. Dual-screen monitors generally refer to dual-screen split monitors, which usually refers to using two monitors and setting them in extended mode, that is, extending the desktop instead of copying it. In this way, you can display different content on the two screens and improve work efficiency.

[0003] Generally, in the display settings of the operating system, you can select the extended mode to move and distribute windows between two screens. After this configuration, you can perform a task on one screen and view other content on the other screen at the same time, improving multitasking capabilities. However, to achieve dual-screen display, you need to make sure that your computer has enough graphics card interfaces (usually two HDMI, DisplayPort or other display interfaces), and then connect two monitors, which is not very convenient. Utility Model Content

[0004] The purpose of this application is to provide a dual-screen adapter device and a display device, which can achieve the technical effect of improving the convenience of dual-screen display.

[0005] In a first aspect, the present application provides a dual-screen adapter device, including an HDMI input module, a switching module, an output module, and a logic control module;

[0006] The HDMI input module is provided with an HDMI interface socket, and the HDMI interface socket is connected to a signal source;

[0007] The adapter module includes a video signal conversion circuit, and the video signal conversion circuit is connected to the HDMI interface seat;

[0008] The output module includes a first output unit and a second output unit, wherein the first output unit and the second output unit are respectively connected to the video signal conversion circuit;

[0009] The logic control module is connected to the HDMI input module and the switching module respectively.

[0010] In the above implementation process, the dual-screen adapter device is provided with an adapter module, wherein the adapter module is provided with a video signal conversion circuit, and the HDMI video signal acquired by the HDMI input module is converted into a dual-channel output video signal through the video signal conversion circuit, and then the first output unit and the second output unit of the output module transmit the dual-channel output video signal to the display device, wherein the operation mode of the HDMI input module and the adapter module is controlled by the logic control module to realize dual-screen simultaneous display or dual-screen split display; thus, the dual-screen adapter device can match a host with a single graphics card interface to achieve the technical effect of improving the convenience of dual-screen display.

[0011] Furthermore, the HDMI input module also includes a multi-channel common-mode inductor circuit, and the multi-channel common-mode inductor circuit is respectively connected to the HDMI interface socket.

[0012] In the above implementation process, the common mode inductor is set to match the TMDS signal impedance.

[0013] Furthermore, the video signal conversion circuit includes an HDMI to dual-channel DSI conversion chip, the input end of the HDMI to dual-channel DSI conversion chip is connected to the HDMI interface socket, and the HDMI to dual-channel DSI conversion chip is provided with a first video output end and a second video output end, the first video output end is connected to the first output unit, and the second video output end is connected to the second output unit.

[0014] Furthermore, the first video output terminal outputs a first MIPI output signal, and the second video output terminal outputs a second MIPI output signal.

[0015] Furthermore, the HDMI to dual-channel DSI conversion chip is also provided with an audio output terminal, and the audio output terminal is connected to a speaker.

[0016] Furthermore, the dual-screen adapter device also includes an audio power amplifier module, and the audio power amplifier module is connected to the audio output end and the speaker respectively.

[0017] In the above implementation process, by setting an audio power amplifier module, the audio signal output from the audio output terminal is amplified and output through the power amplifier.

[0018] Furthermore, the audio power amplifier module includes an I2S audio power amplifier circuit, the I2S audio power amplifier circuit is provided with an audio power amplifier, and the audio power amplifier is respectively connected to the audio output terminal and the speaker.

[0019] Furthermore, the dual-screen adapter device also includes a DCDC step-down module, and the DCDC step-down module is connected to the adapter module.

[0020] In the above implementation process, a DCDC step-down module is provided to provide a stepped-down working voltage to the adapter module.

[0021] Furthermore, the DCDC step-down module is provided with a plurality of voltage output terminals, and the plurality of voltage output terminals are respectively connected to the adapter module, and the output voltage of the DCDC step-down module includes one or more of 3.8V, 1.8V, and 1.1V.

[0022] In a second aspect, the present application provides a display device, comprising a dual-screen adapter device as described in any one of the first aspects.

[0023] Other features and advantages disclosed in the present application will be described in the following description, or some features and advantages can be inferred or determined without doubt from the description, or can be learned by implementing the above-mentioned technology disclosed in the present application.

[0024] In order to make the above-mentioned objects, features and advantages of the present application more obvious and easy to understand, preferred embodiments are specifically cited below and described in detail with reference to the attached drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments of the present application will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0026] Figure 1 A schematic diagram of the structure of a dual-screen adapter device provided in an embodiment of the present application;

[0027] Figure 2 A circuit diagram of an HDMI interface socket provided in an embodiment of the present application;

[0028] Figure 3 A circuit diagram of an HDMI to dual-channel DSI conversion chip provided in an embodiment of the present application;

[0029] Figure 4 A circuit diagram of an audio power amplifier module provided in an embodiment of the present application;

[0030] Figure 5 A first circuit diagram of a DCDC buck module provided in an embodiment of the present application;

[0031] Figure 6 A second circuit diagram of a DCDC buck module provided in an embodiment of the present application;

[0032] Figure 7 A third circuit diagram of the DCDC buck module provided in an embodiment of the present application;

[0033] Figure 8 A circuit diagram of a logic control module provided in an embodiment of the present application. DETAILED DESCRIPTION

[0034] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all of the embodiments. The components of the embodiments of the present application described and shown in the drawings here can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the application claimed for protection, but merely represents the selected embodiments of the present application. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without making creative work belong to the scope of protection of the present application.

[0035] In the present application, the terms "upper", "lower", "left", "right", "front", "back", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings. These terms are mainly used to better describe the present application and its embodiments, and are not used to limit the indicated devices, elements or components to have a specific orientation, or to be constructed and operated in a specific orientation.

[0036] In addition, some of the above terms may be used to express other meanings in addition to indicating orientation or positional relationship. For example, the term "on" may also be used to express a certain dependency or connection relationship in some cases. For those of ordinary skill in the art, the specific meanings of these terms in this application can be understood according to specific circumstances.

[0037] In addition, the terms "installed", "set", "provided with", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection, or a point connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be an internal connection between two devices, elements, or components. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0038] In addition, the terms "first", "second", etc. are mainly used to distinguish different devices, elements or components (the specific types and structures may be the same or different), and are not used to indicate or imply the relative importance and quantity of the indicated devices, elements or components. Unless otherwise specified, "plurality" means two or more.

[0039] The embodiment of the present application provides a dual-screen adapter device and a display device, which can be applied to dual-screen simultaneous display and split display, such as display application scenarios such as advertising machines and entertainment broadcast screens; the dual-screen adapter device is provided with an adapter module, wherein the adapter module is provided with a video signal conversion circuit, and the HDMI video signal obtained by the HDMI input module is converted into a dual-channel output video signal through the video signal conversion circuit, and then the first output unit and the second output unit of the output module transmit the dual-channel output video signal to the display device, wherein the operation mode of the HDMI input module and the adapter module is controlled by the logic control module to realize dual-screen simultaneous display or dual-screen split display; thereby, the dual-screen adapter device can match a host with a single graphics card interface to achieve the technical effect of improving the convenience of dual-screen display.

[0040] See also Figure 1 and Figure 2 , Figure 1 A schematic diagram of the structure of a dual-screen adapter device provided in an embodiment of the present application, Figure 2 A circuit diagram of an HDMI interface socket provided in an embodiment of the present application;

[0041] The dual-screen adapter device includes an HDMI input module 100, a switching module 200, an output module 300 and a logic control module 400;

[0042] Exemplarily, the HDMI input module 100 is provided with an HDMI interface socket, and the HDMI interface socket is connected to a signal source;

[0043] For example, Figure 2 As shown, P2 is an HDMI interface socket; wherein the HDMI interface socket can be connected to an external signal source to obtain an HDMI signal. For example, the HDMI signal output by other hosts can be obtained through the HDMI interface socket.

[0044] Exemplarily, the adapter module 200 includes a video signal conversion circuit, and the video signal conversion circuit is connected to the HDMI interface socket;

[0045] Exemplarily, the adapter module 200 converts the HDMI signal acquired by the HDMI interface socket into a dual-channel output video signal.

[0046] Exemplarily, the output module 300 includes a first output unit and a second output unit, and the first output unit and the second output unit are respectively connected to the video signal conversion circuit;

[0047] Exemplarily, the logic control module is connected to the HDMI input module and the switching module respectively.

[0048] Exemplarily, the dual-screen adapter device is provided with an adapter module 200, wherein the adapter module 200 is provided with a video signal conversion circuit, and the HDMI video signal acquired by the HDMI input module 100 is converted into a dual-output video signal through the video signal conversion circuit, and then the first output unit and the second output unit of the output module 300 transmit the dual-output video signal to the display device, wherein the logic control module 400 controls the operation mode of the HDMI input module and the adapter module to realize dual-screen simultaneous display or dual-screen split display; thus, the dual-screen adapter device can match a host with a single graphics card interface to achieve the technical effect of improving the convenience of dual-screen display.

[0049] Exemplarily, the HDMI input module 100 further includes a multi-channel common-mode inductor circuit, and the multi-channel common-mode inductor circuit is respectively connected to the HDMI interface socket.

[0050] For example, Figure 2 As shown, the 4 paths on the right are common-mode inductors, which are used to match the TMDS (Transition Minimized Differential Signaling) signal impedance; Figure 2 In the figure, the 4-way common-mode inductor circuit is a 4-way SDCW2012-2-900TF.

[0051] See also Figure 3 , Figure 3 A circuit diagram of an HDMI to dual-channel DSI conversion chip provided in an embodiment of the present application.

[0052] Exemplarily, the video signal conversion circuit includes an HDMI to dual-channel DSI conversion chip, the input end of the HDMI to dual-channel DSI conversion chip is connected to the HDMI interface socket, the HDMI to dual-channel DSI conversion chip is provided with a first video output end and a second video output end, the first video output end is connected to the first output unit, and the second video output end is connected to the second output unit.

[0053] For example, Figure 3 As shown, U3B is an HDMI to dual-channel DSI conversion chip provided in an embodiment of the present application, the first video output end is MIPI0, and the second video output end is MIPI1.

[0054] Optionally, the HDMI to dual-channel DSI conversion chip uses the TC358870XBG HDMI to dual-channel DSI conversion chip, which can support up to 4K dual-channel MIPI output (the dual-screen display mode can be configured in real time as the same display output or split output), and supports I2S output of audio signals.

[0055] Exemplarily, the first video output terminal outputs a first MIPI output signal, and the second video output terminal outputs a second MIPI output signal.

[0056] See also Figure 4 , Figure 4 A circuit diagram of an audio power amplifier module provided in an embodiment of the present application.

[0057] Exemplarily, the HDMI to dual-channel DSI conversion chip is also provided with an audio output terminal, and the audio output terminal is connected to a speaker.

[0058] For example, Figure 3 As shown, the audio output terminals are SCLK, WS, and SD / SPDIF ports.

[0059] Exemplarily, the dual-screen adapter device also includes an audio power amplifier module, which is connected to the audio output terminal and the speaker respectively.

[0060] Exemplarily, by setting an audio power amplifier module, the audio signal output from the audio output terminal is amplified and output through a power amplifier.

[0061] Exemplarily, the audio power amplifier module includes an I2S audio power amplifier circuit, the I2S audio power amplifier circuit is provided with an audio power amplifier, and the audio power amplifier is respectively connected to the audio output terminal and the speaker.

[0062] For example, Figure 4 As shown, the audio power amplifier selected is NS4168; wherein, NS4168 integrates DAC converter and D internal power amplifier, converts the audio I2S signal output by HDMI to dual-channel DSI conversion chip into analog signal and then amplifies and outputs it through the power amplifier.

[0063] See also Figures 5 to 7 , Figure 5 This is a first circuit diagram of a DCDC buck module provided in an embodiment of the present application. Figure 6 A second circuit diagram of a DCDC buck module provided in an embodiment of the present application is shown in FIG. Figure 7 This is a third circuit diagram of the DCDC buck module provided in an embodiment of the present application.

[0064] Exemplarily, the dual-screen adapter device further includes a DCDC buck module, and the DCDC buck module is connected to the adapter module.

[0065] Exemplarily, a DCDC step-down module is provided to provide a stepped-down operating voltage to the adapter module.

[0066] Exemplarily, the DCDC buck module is provided with a plurality of voltage output terminals, which are respectively connected to the adapter modules, and the output voltage of the DCDC buck module includes one or more of 3.8V, 1.8V, and 1.1V.

[0067] For example, Figures 5 to 7 As shown, the DC-DC step-down part, 5V input, is stepped down to 3.3V, 1.1V, and 1.8V through the DCDC step-down module to power the bridge chip (HDMI to dual-channel DSI conversion chip);

[0068] Optionally, the DCDC buck module uses a SY8088 BUCK buck IC to step down the power input 5V to 3.3V, 1.8V, or 1.1V to power the chip.

[0069] See also Figure 8 , Figure 8 A circuit diagram of a logic control module provided in an embodiment of the present application.

[0070] Exemplarily, the logic control module is provided with a logic control IC, the model of which can be selected as STM32F103C8T6, which has the following functions: controlling the logic and timing of the video conversion chip through I2C; realizing automatic backlight adjustment; realizing real-time modification and configuration of HDMI to MIPI configuration information; controlling real-time switching of dual-screen display of the same picture and dual-screen split display.

[0071] Illustratively, an embodiment of the present application provides a display device, including: Figures 1 to 8 The dual-screen adapter device shown.

[0072] For example, the rise of dual-screen displays is related to the changes in modern work and entertainment needs. Here are some factors related to the industry background:

[0073] 1. Increased demand for multitasking: With the popularization of digital working environments, people often need to handle multiple tasks at the same time, such as viewing files, editing documents, browsing the web, etc. Dual-screen simultaneous display can provide a larger working area, allowing users to multitask more easily;

[0074] 2. Professional and creative applications: For professional users, such as designers, programmers, and video editors, dual-screen display can provide more visual space, which is helpful for displaying large amounts of information or viewing multiple tools and resources at the same time;

[0075] 3. Entertainment and gaming experience: Game enthusiasts may also get a more immersive gaming experience by using dual screens, such as playing the game on one screen and displaying relevant game information or chat on the other screen;

[0076] 4. Technological progress: As display technology advances, thin-bezel designs and high-resolution displays become more common, making dual-screen setups more attractive;

[0077] 5. Remote working trend: The increase in remote working has made people pay more attention to tools to improve office efficiency, and dual-screen display just meets this demand;

[0078] The dual-screen adapter device provided in the embodiment of the present application does not need to be equipped with an external converter, etc., and can directly input a single HDMI signal source to realize dual-screen simultaneous display of the same picture (dual-screen same display) or dual-screen split display. For display scenarios such as advertising machines and entertainment facilities, a host can be directly connected to a dual-screen display to achieve:

[0079] 1. Dual screens display the same computer screen at the same time.

[0080] 2. Dual-screen split display (for example: one screen displays the left half of the computer screen, and the other screen displays the right half of the computer screen).

[0081] In all the embodiments of the present application, "big" and "small" are relative, "more" and "less" are relative, and "up" and "down" are relative. The expressions of such relative terms are not elaborated in the embodiments of the present application.

[0082] It should be understood that the "in this embodiment", "in the embodiment of the present application" or "as an optional implementation" mentioned throughout the specification means that the specific features, structures or characteristics related to the embodiment are included in at least one embodiment of the present application. Therefore, "in this embodiment", "in the embodiment of the present application" or "as an optional implementation" appearing throughout the specification may not necessarily refer to the same embodiment. In addition, these specific features, structures or characteristics can be combined in one or more embodiments in any suitable manner. Those skilled in the art should also be aware that the embodiments described in the specification are all optional embodiments, and the actions and modules involved are not necessarily required for the present application.

[0083] In the various embodiments of the present application, it should be understood that the size of the serial numbers of the above-mentioned processes does not necessarily mean the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of the present application.

[0084] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims

1. A dual-screen adapter device, characterized in that: Including HDMI input module, switching module, output module and logic control module; The HDMI input module is provided with an HDMI interface socket, and the HDMI interface socket is connected to a signal source; The adapter module includes a video signal conversion circuit, and the video signal conversion circuit is connected to the HDMI interface seat; The output module includes a first output unit and a second output unit, wherein the first output unit and the second output unit are respectively connected to the video signal conversion circuit; The logic control module is connected to the HDMI input module and the switching module respectively.

2. The dual-screen adapter device according to claim 1, characterized in that: The HDMI input module also includes a multi-channel common-mode inductor circuit, and the multi-channel common-mode inductor circuit is connected to the HDMI interface socket respectively.

3. The dual-screen adapter device according to claim 1, characterized in that: The video signal conversion circuit includes an HDMI to dual-channel DSI conversion chip, the input end of the HDMI to dual-channel DSI conversion chip is connected to the HDMI interface socket, and the HDMI to dual-channel DSI conversion chip is provided with a first video output end and a second video output end, the first video output end is connected to the first output unit, and the second video output end is connected to the second output unit.

4. The dual-screen adapter device according to claim 3, characterized in that: The first video output terminal outputs a first MIPI output signal, and the second video output terminal outputs a second MIPI output signal.

5. The dual-screen adapter device according to claim 3, characterized in that: The HDMI to dual-channel DSI conversion chip is also provided with an audio output terminal, and the audio output terminal is connected to a speaker.

6. The dual-screen adapter device according to claim 5, characterized in that: The dual-screen adapter device also includes an audio power amplifier module, and the audio power amplifier module is connected to the audio output end and the speaker respectively.

7. The dual-screen adapter device according to claim 6, characterized in that: The audio power amplifier module comprises an I2S audio power amplifier circuit, wherein the I2S audio power amplifier circuit is provided with an audio power amplifier, and the audio power amplifier is respectively connected to the audio output terminal and the speaker.

8. The dual-screen adapter device according to claim 1, characterized in that: The dual-screen adapter device further includes a DCDC step-down module, and the DCDC step-down module is connected to the adapter module.

9. The dual-screen adapter device according to claim 8, characterized in that: The DCDC step-down module is provided with a plurality of voltage output terminals, and the plurality of voltage output terminals are respectively connected to the adapter modules. The output voltage of the DCDC step-down module includes one or more of 3.8V, 1.8V, and 1.1V.

10. A display device, characterized in that: It comprises a dual-screen adapter device as described in any one of claims 1 to 9.

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