Double-screen display circuit

Abstract

The utility model belongs to the technical field of display equipment, and particularly relates to a double-screen display circuit which comprises an interface module which comprises a first interface unit and a second interface unit, and the first interface unit is connected with an external first display module; the second interface unit is connected with an external second display module; the signal processing module is connected with the first interface unit and the second interface unit, and the signal processing module is used for processing an external display signal and sending the external display signal to the interface module, so that the external first display module and the external second display module display different pictures; and the power supply module is connected with the signal processing module. The interface module is respectively connected with the two external screens, the external display signals are respectively transmitted to the two external screens after being processed by the signal processing module, split-screen display is realized, and compared with the prior art, a complicated driving program does not need to be installed, and the split-screen display device is more convenient for a user to use.

Description

Technical Field

[0001] The utility model belongs to the technical field of display devices, and particularly relates to a dual-screen display circuit. Background Art

[0002] In daily work, a single display screen often cannot meet the needs of users when conducting analysis and comparison work. Therefore, dual-screen display technology has emerged. Dual-screen display technology refers to the combined use of two monitors to expand one desktop to two screens, thereby improving work efficiency and visual experience. According to different implementation methods, dual-screen display technology generally includes MST (Multi-Stream Transport) stream technology and dual-graphics card technology.

[0003] MST stream technology is a dual-screen solution based on the DisplayPort interface. It allows users to connect multiple monitors through a single DisplayPort cable and enables a computer to drive these monitors simultaneously. However, the compatibility of MST technology is limited by the support of the monitors and the compatibility of the computer motherboard. Sometimes, the monitors may not be correctly recognized. At the same time, MST technology also has compatibility issues. Although most operating systems support MST technology, in some cases, users may need to install additional drivers to achieve optimal performance, which is inconvenient to use.

[0004] Dual-graphics card technology involves installing two independent graphics cards on a computer, with each graphics card driving one monitor respectively. This technology is usually used in high-performance application scenarios such as professional graphic design and large-scale games. However, dual-graphics card technology obviously has the problem of high cost, and dual-graphics card configuration may require more complex driver installation and system configuration, which is rather troublesome for users who are not familiar with computer hardware.

[0005] Therefore, it is necessary to design a new solution to solve the above problems. Summary of the Utility Model

[0006] The purpose of the utility model is to provide a dual-screen display circuit, aiming to solve the technical problems of high cost and inconvenient use existing in the dual-screen display technology in the prior art.

[0007] To achieve the above purpose, an embodiment of the utility model provides a dual-screen display circuit, including:

[0008] An interface module, the interface module includes a first interface unit and a second interface unit, the first interface unit is connected to an external first display module; the second interface unit is connected to an external second display module;

[0009] A signal processing module, which is connected to the first interface unit and the second interface unit, and is used to process an external display signal and send it to the interface module, so that different pictures are displayed on the external first display module and the external second display module;

[0010] A power supply module, which is connected to the signal processing module.

[0011] As a preferred solution, the signal processing module includes a first communication unit, a first driving unit, a second communication unit and a second driving unit; the first communication unit is connected to the first interface unit, the first driving unit is connected to the first communication unit, the second communication unit is connected to the second interface unit, the second communication unit is connected to the first communication unit, and the second driving unit is connected to the second communication unit.

[0012] As a preferred solution, the first communication unit includes a first communication chip, the second communication unit includes a second communication chip, and the corresponding pins of the first communication chip are connected to the corresponding pins of the second communication unit.

[0013] As a preferred solution, the models of the first communication chip and the second communication chip are LDR6020.

[0014] As a preferred solution, the first driving unit includes a first driving chip and a first encryption chip, the second driving unit includes a second driving chip and a second encryption chip, the first driving chip is connected to the first encryption chip, and the second driving chip is connected to the second encryption chip.

[0015] As a preferred solution, the models of the first driving chip and the second driving chip are RTD2795UT-CG.

[0016] As a preferred solution, the signal processing module further includes a first driving power supply unit and a second driving power supply unit, the first driving power supply unit is connected to the power supply module and the first driving unit, and the second driving unit is connected to the power supply module and the second driving unit.

[0017] As a preferred solution, the power supply module includes a charging interface unit, a power supply management unit and a power supply conversion unit; the charging interface unit is connected to an external power supply, the charging interface unit is connected to the first communication unit, and the power supply management unit is connected to the charging interface unit, the first communication unit and the second communication unit.

[0018] As a preferred solution, it further includes a backlight module. The backlight module is connected to the signal processing module and the power supply module. The backlight module includes a first backlight unit and a second backlight unit. The first backlight unit is connected to the first driving unit, and the second backlight unit is connected to the second driving unit.

[0019] One or more of the above technical solutions in the dual-screen display circuit provided by the embodiments of the present invention have at least one of the following technical effects:

[0020] The present invention connects two external screens through the interface module respectively, and after processing the external display signals through the signal processing module, transmits them to the two external screens respectively to achieve split-screen display. Compared with the prior art, it does not require installing complex driver programs, and is more convenient for users to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following will briefly introduce the drawings required for use in the embodiments or the description of the prior art. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0022] Figure 1 It is the circuit schematic diagram of the interface module of the dual-screen display circuit provided by the embodiment of the present invention;

[0023] Figure 2 It is the circuit schematic diagram of the first communication unit of the dual-screen display circuit provided by the embodiment of the present invention;

[0024] Figure 3 It is the circuit schematic diagram of the first driving unit of the dual-screen display circuit provided by the embodiment of the present invention;

[0025] Figure 4 It is the circuit schematic diagram of the second communication unit of the dual-screen display circuit provided by the embodiment of the present invention;

[0026] Figure 5 It is the circuit schematic diagram of the second driving unit of the dual-screen display circuit provided by the embodiment of the present invention;

[0027] Figure 6 It is the circuit schematic diagram of the first driving power supply unit of the dual-screen display circuit provided by the embodiment of the present invention;

[0028] Figure 7 It is the circuit schematic diagram of the second driving power supply unit of the dual-screen display circuit provided by the embodiment of the present invention;

[0029] Figure 8Schematic diagram of the power supply module for the dual-screen display circuit provided by the embodiment of the present invention;

[0030] Figure 9 Schematic diagram of the first backlight unit circuit for the dual-screen display circuit provided by the embodiment of the present invention;

[0031] Figure 10 Schematic diagram of the second backlight unit circuit for the dual-screen display circuit provided by the embodiment of the present invention;

[0032] Among them, each reference numeral in the figure:

[0033] 100 - Interface module; 110 - First interface unit; 120 - Second interface unit;

[0034] 200 - Signal processing module; 210 - First communication unit; 220 - First driving unit; 230 - Second communication unit; 240 - Second driving unit; 250 - First driving power supply unit; 260 - Second driving power supply unit;

[0035] 300 - Power supply module; 310 - Charging interface unit; 320 - Power supply management unit; 330 - Power supply conversion unit; 400 - Backlight module; 410 - First backlight unit; 420 - Second backlight unit. Detailed implementation manners

[0036] The embodiments of the present invention will be described in detail below. The examples of the embodiments are shown in the accompanying drawings, where the same or similar reference numerals represent the same or similar elements or elements with the same or similar functions from beginning to end. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to explain the embodiments of the present invention, and should not be construed as a limitation of the present invention.

[0037] In the description of the embodiments of the present invention, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the embodiments of the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention.

[0038] In addition, the terms "first" and "second" are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the embodiments of the present utility model, the meaning of "a plurality of" is two or more, unless otherwise specifically defined.

[0039] In the embodiments of the present utility model, unless otherwise clearly specified and defined, terms such as "mounted", "connected", "coupled", "fixed", etc. shall be construed in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present utility model can be understood according to specific circumstances.

[0040] In one embodiment of the present utility model, as Figures 1 - 10 shown, a dual-screen display circuit is provided, including an interface module 100, a signal processing module 200, and a power supply module 300. The signal processing module 200 is connected to the interface module 100, and the power supply module 300 is connected to the signal processing module 200.

[0041] Referring to Figure 1 shown, the interface module 100 includes a first interface unit 110 and a second interface unit 120. The first interface unit 110 is connected to an external first display module; the second interface unit 120 is connected to an external second display module. In this embodiment, the first interface unit 110 and the second interface unit 120 are Type-C interfaces. Of course, they can also be set as micro USB, HDMI, DP and other interfaces, without limitation.

[0042] Referring to Figures 2 - 5 shown, the signal processing module 200 is connected to the first interface unit 110 and the second interface unit 120. The signal processing module 200 is configured to process external display signals and send them to the first interface unit 110 and the second interface unit 120 of the interface module 100, so that the external first display module and the external second display module display different pictures.

[0043] The signal processing module 200 includes a first communication unit 210, a first driving unit 220, a second communication unit 230, and a second driving unit 240. The first communication unit 210 is connected to the first interface unit 110, the first driving unit 220 is connected to the first communication unit 210, the second communication unit 230 is connected to the second interface unit 120, the second communication unit 230 is connected to the first communication unit 210, and the second driving unit 240 is connected to the second communication unit 230.

[0044] Specifically, referring to Figure 2 and Figure 4 as shown, the first communication unit 210 includes a first communication chip U1, the second communication unit 230 includes a second communication chip U5, and corresponding pins of the first communication chip U1 are connected to corresponding pins of the second communication unit 230. In this embodiment, the models of the first communication chip U1 and the second communication chip U5 are preferably LDR6020, or other chips of the same type.

[0045] Specifically, referring to Figure 3 and Figure 5 as shown, the first driving unit 220 includes a first driving chip U13 and a first encryption chip U11, the second driving unit 240 includes a second driving chip U21 and a second encryption chip U19, the first driving chip U13 is connected to corresponding pins of the first encryption chip U11, and the second driving chip U21 is connected to corresponding pins of the second encryption chip U19. The specific pin connection relationship can be known to those skilled in the art by referring to the accompanying drawings of the specification, and will not be elaborated here. In this embodiment, the models of the first driving chip and the second driving chip are preferably RTD2795UT-CG, or other chips of the same type; the models of the first encryption chip U11 and the second encryption chip U19 are preferably ATSHA204A-SSHDA-B, or other models of the same type.

[0046] Further, referring to Figure 6 and Figure 7 as shown, the signal processing module 200 further includes a first driving power supply unit 250 and a second driving power supply unit 260, which are used to adjust the power supplied by the power supply module 300 to the voltage and current suitable for each chip in the first driving unit 220 and the second driving unit 240. The first driving power supply unit 250 is connected to the power supply module 300 and the first driving unit 220, and the second driving unit 260 is connected to the power supply module 300 and the second driving unit 240.

[0047] Referring to Figure 8As shown, the power supply module 300 includes a charging interface unit 310, a power supply management unit 320, and a power supply conversion unit 330. The charging interface unit 310 is connected to an external power supply, the charging interface unit 310 is connected to the first communication unit 210, and the power supply management unit 320 is connected to the charging interface unit 310, the first communication unit 210, and the second communication unit 230.

[0048] Referring to Figure 9 and Figure 10 As shown, the dual-screen display circuit further includes a backlight module 400. The backlight module 400 is connected to the signal processing module 200 and the power supply module 300. The backlight module 400 includes a first backlight unit 410 and a second backlight unit 420. The first backlight unit 410 is connected to the first driving unit 220, and the second backlight unit 420 is connected to the second driving unit 240.

[0049] It should be noted that the chips provided in this application are only examples, and those skilled in the art can also select other chips as needed. It should be noted that this application aims to protect the circuit structure. For the program control part, those skilled in the art should reasonably select appropriate circuits and chips according to the chip models in this application or as needed and perform appropriate programming to implement the corresponding program control functions in this utility model. Therefore, this part is a mature and established technology in the prior art and is not the focus of protection of this application. Therefore, this application does not specifically elaborate on this control part.

[0050] The above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present utility model shall be included in the protection scope of the present utility model.

Claims

1. A dual-screen display circuit, characterized in that, Comprising: An interface module, the interface module includes a first interface unit and a second interface unit, and the first interface unit is connected to an external first display module; The second interface unit is connected to an external second display module; A signal processing module, the signal processing module is connected to the first interface unit and the second interface unit, and the signal processing module is configured to process an external display signal and send it to the interface module so that the external first display module and the external second display module display different pictures; A power supply module, the power supply module is connected to the signal processing module.

2. The dual-screen display circuit according to claim 1, wherein The signal processing module includes a first communication unit, a first driving unit, a second communication unit and a second driving unit; the first communication unit is connected to the first interface unit, the first driving unit is connected to the first communication unit, the second communication unit is connected to the second interface unit, the second communication unit is connected to the first communication unit, and the second driving unit is connected to the second communication unit.

3. The dual-screen display circuit according to claim 2, wherein, The first communication unit includes a first communication chip, the second communication unit includes a second communication chip, and corresponding pins of the first communication chip are connected to corresponding pins of the second communication unit.

4. The dual-screen display circuit according to claim 3, wherein The models of the first communication chip and the second communication chip are LDR6020.

5. The dual-screen display circuit according to claim 2, wherein, The first driving unit includes a first driving chip and a first encryption chip, the second driving unit includes a second driving chip and a second encryption chip, the first driving chip is connected to the first encryption chip, and the second driving chip is connected to the second encryption chip.

6. The dual-screen display circuit according to claim 5, characterized in that, The models of the first driving chip and the second driving chip are RTD2795UT-CG.

7. The dual-screen display circuit according to claim 2, characterized in that, The signal processing module further includes a first driving power supply unit and a second driving power supply unit, the first driving power supply unit is connected to the power supply module and the first driving unit, and the second driving unit is connected to the power supply module and the second driving unit.

8. The dual-screen display circuit according to any one of claims 2-7, characterized in that The power supply module includes a charging interface unit, a power supply management unit and a power supply conversion unit; the charging interface unit is connected to an external power supply, the charging interface unit is connected to the first communication unit, and the power supply management unit is connected to the charging interface unit, the first communication unit and the second communication unit.

9. The dual-screen display circuit according to any one of claims 2-7, characterized in that, It further includes a backlight module, the backlight module is connected to the signal processing module and the power supply module, the backlight module includes a first backlight unit and a second backlight unit, the first backlight unit is connected to the first driving unit, and the second backlight unit is connected to the second driving unit.

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