Display card high-low level free switching circuit related to LVDS (Low Voltage Differential Signaling) and display equipment thereof
By using a high/low level switching circuit for graphics cards and a control module and graphics card switching module to switch between graphics cards, the problem of AMD graphics cards being unable to output LVDS signals is solved, thus achieving graphics card compatibility and signal management.
Patent Information
- Application Number
- CN202423276793.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-26
- Publication Date
- 2025-12-16
- Estimated Expiration
- 2034-12-26
AI Technical Summary
In existing technology, AMD graphics cards cannot directly output LVDS signals, resulting in incompatibility issues with Jingjia Micro graphics cards on the same board.
A high/low level free switching circuit for a graphics card is designed, including a control module, a graphics card switching module, and an LVDS connector. The control module controls the graphics card switching module to switch between the first graphics card component and the second graphics card module through the level signal of the control module, so as to realize the flexible output of LVDS signal.
Without modifying the PCB circuit board, the compatibility issue between AMD graphics cards and Jingjia Micro graphics cards was resolved, and precise management and adjustment of LVDS signals were achieved.
Smart Images
Figure CN223679634U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the technical field of mainboard hardware module circuit, specifically relates to a about LVDS's display card high low level free switching circuit and display equipment thereof. BACKGROUND
[0002] On the current market, the display card channel used in many applications is without output DP signal, but is directly output through LVDS, such as Jingjia micro display card, wherein, LVDS can be called a kind of low voltage differential signal, it is mainly a kind of low power consumption, low error rate, low crosstalk and low radiation differential signal technology, namely display signal, and in practical application, AMD display card cannot directly output LVDS signal, therefore, in the case where LVDS signal needs to be output, the above-mentioned such as Jingjia micro one kind of display card and the AMD display card based on LVDS cannot be compatible on a board problem will appear;Simply speaking, it is the problem that two kinds of display cards cannot be compatible on a board in practical application.
[0003] Therefore, the present application is proposed. UTILITY MODEL CONTENT
[0004] The utility model discloses a kind of about LVDS's display card high low level free switching circuit and display equipment thereof, can at least partially improve the above-mentioned problem.
[0005] To achieve the above object, the utility model adopts the following technical scheme:
[0006] The utility model discloses a kind of about LVDS's display card high low level free switching circuit, it includes: mainboard, control module configured on the mainboard, first display card component, second display card module, display card switching module and LVDS connector, wherein, the output of the control module is electrically connected with the input of the first display card component, the input of the second display card module, the first display card component, the second display card module and the input of the display card switching module are electrically connected, the output of the display card switching module is electrically connected with the LVDS connector, the output of the LVDS connector is used to be connected with display equipment;
[0007] Among them, the display card switching module is configured to switch the first display card component and the second display card module according to the level signal sent by the control module, to realize the control to the LVDS output of first display card component or the LVDS output of second display card module.
[0008] Preferably, the first graphics card assembly comprises a first graphics card module and a conversion module, an output end of the first graphics card module is electrically connected with an input end of the conversion module, and an output end of the conversion module is electrically connected with the LVDS connector.
[0009] Preferably, the first graphics card module is an AMD graphics card.
[0010] Preferably, the second graphics card module is a Jiagaimicro graphics card.
[0011] Preferably, the graphics card switching module adopts an ASW3642 chip.
[0012] Preferably, the conversion module adopts a CH7511 B-BF conversion chip.
[0013] The utility model discloses still a kind of display equipment, it includes equipment ontology and the high or low level free switching circuit of graphics card about LVDS of any one described above, wherein, the output end of the LVDS connector is used to with the input end of the equipment ontology electrically connected.
[0014] Summarizing, the graphics card switching module of the high or low level free switching circuit of graphics card about LVDS is designed to respond to level signal issued by the control module, to switch between first graphics card assembly and second graphics card module.This switching mechanism allows system to flexibly control LVDS output of first graphics card assembly or LVDS output of second graphics card module, ensuring accurate management and adjustment of output signal, thereby solving the problem of incompatibility between AMD and Jiagaimicro graphics card about LVDS. BRIEF DESCRIPTION OF DRAWINGS
[0015] Figure 1 is the structural schematic diagram of the high or low level free switching circuit of graphics card about LVDS provided by the utility model embodiment;
[0016] Figure 2 is the switching control signal GPIO control structure diagram of the control module of the high or low level free switching circuit of graphics card about LVDS provided by the utility model embodiment;
[0017] Figure 3 is the LVDS switching structure diagram of the graphics card switching module of the high or low level free switching circuit of graphics card about LVDS provided by the utility model embodiment;
[0018] Figure 4 is the ADM graphics card A channel DP conversion LVDS structure diagram of the conversion module of the high or low level free switching circuit of graphics card about LVDS provided by the utility model embodiment.
[0019] Figure 5 The second graphic card module of the graphic card high-low level free switching circuit about LVDS is directly connected with the LVDS connector. DETAILED DESCRIPTION
[0020] In order to make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme in the embodiments of the present application will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application. 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 claimed present application, but only to represent selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.
[0021] The specific embodiments of the present application will be described in detail below in conjunction with the drawings.
[0022] Please refer to Figures 1 to 3 The present application discloses a graphic card high-low level free switching circuit about LVDS, which comprises a mainboard, a control module arranged on the mainboard, a first graphic card component, a second graphic card module, a graphic card switching module and an LVDS connector, wherein the output end of the control module is electrically connected with the input end of the first graphic card component and the input end of the second graphic card module, the first graphic card component and the second graphic card module are electrically connected with the input end of the graphic card switching module, the output end of the graphic card switching module is electrically connected with the LVDS connector, and the output end of the LVDS connector is used for connecting with a display device.
[0023] Preferably, the graphic card switching module is configured to switch the first graphic card component and the second graphic card module according to the level signal sent by the control module, so as to realize the control of the LVDS output of the first graphic card component or the LVDS output of the second graphic card module.
[0024] Preferably, the graphic card switching module can adopt an ASW3642 chip.
[0025] In the embodiment, when the second graphics card module or the first graphics card component outputs the LVDS signal, the graphics card switching module is switched to connect to the LVDS connector, so as to flexibly control the LVDS output of the first graphics card component or the LVDS output of the second graphics card module. When the level signal output by the control module, that is, the GPIO46 signal in the control module, is low, the LVDS signal is output from the second graphics card module; when the GPIO46 signal is high, the LVDS signal is output from the first graphics card component, so that the effect of free switching of the graphics card can be achieved. Figure 2
[0026] It should be noted that in other embodiments, other types of graphics card switching modules can also be used, which are not limited here, but these schemes are within the protection scope of the utility model.
[0027] Preferably, the first graphics card component includes a first graphics card module and a conversion module, an output end of the first graphics card module is electrically connected with an input end of the conversion module, and an output end of the conversion module is electrically connected with the LVDS connector. The conversion module is configured to convert the signal output by the first graphics card module into an LVDS signal.
[0028] Preferably, the first graphics card module can be an AMD graphics card.
[0029] Preferably, the conversion module can use a CH7511 B-BF conversion chip.
[0030] Please refer to Figure 4 In the embodiment, when the AMD graphics card is connected to the mainboard, the AMD graphics card cannot directly output the LVDS signal, so a conversion module is needed to convert the DP signal output by the AMD graphics card into an LVDS signal. The implementation mode of the first graphics card module LVDS is that the output signal of the AMD graphics card is converted by the CH7511 B-BF conversion chip in the conversion module, that is, Figure 4
[0031] It should be noted that in other embodiments, other types of first graphics card modules and conversion modules can also be used, which are not limited here, but these schemes are within the protection scope of the utility model.
[0032] Preferably, the second graphics card module can be a Jingjia Micro graphics card.
[0033] Please refer to Figure 5 In the embodiment, when the mainboard is connected with the graphics card of the company, the graphics card can directly output the LVDS signal.
[0034] In conclusion, the graphics card high-low level free switching circuit about LVDS solves the problem of incompatibility between the AMD and the graphics card of the company about LVDS without changing the PCB circuit board, by only modifying the BIOS (Basic Input / Output System), i.e. the control module.
[0035] The utility model discloses still a kind of display equipment, it includes equipment ontology and the graphics card high-low level free switching circuit about LVDS of any one described above, wherein, the output end of the LVDS connector is used to with the input end electrical connection of the equipment ontology.
[0036] The above is only preferred embodiment of the utility model, the protection scope of the utility model is not only limited to the above-mentioned embodiment, and all technical solutions under the idea of the utility model belong to the protection scope of the utility model.
Claims
1. A high / low level free switching circuit for a graphics card based on LVDS, characterized in that, include: The system includes a motherboard, a control module configured on the motherboard, a first graphics card assembly, a second graphics card module, a graphics card switching module, and an LVDS connector. The output terminal of the control module is electrically connected to the input terminals of the first graphics card assembly and the second graphics card module. The first graphics card assembly and the second graphics card module are electrically connected to the input terminal of the graphics card switching module. The output terminal of the graphics card switching module is electrically connected to the LVDS connector. The output terminal of the LVDS connector is used to connect to a display device. The graphics card switching module is configured to switch between the first graphics card component and the second graphics card module according to the level signal sent by the control module, so as to control the LVDS output of the first graphics card component or the LVDS output of the second graphics card module.
2. The high / low level free switching circuit for a graphics card based on LVDS according to claim 1, characterized in that, The first graphics card component includes a first graphics card module and a conversion module. The output terminal of the first graphics card module is electrically connected to the input terminal of the conversion module, and the output terminal of the conversion module is electrically connected to the LVDS connector. The conversion module is configured to convert the signal output by the first graphics card module into an LVDS signal.
3. A high / low level free switching circuit for a graphics card based on LVDS according to claim 2, characterized in that, The first graphics card module is an AMD graphics card.
4. A high / low level free switching circuit for a graphics card based on LVDS according to claim 1, characterized in that, The second graphics card module is a Jingjia Micro graphics card.
5. A high / low level free switching circuit for a graphics card based on LVDS according to claim 1, characterized in that, The graphics card switching module uses the ASW3642 chip.
6. A high / low level free switching circuit for a graphics card based on LVDS according to claim 2, characterized in that, The conversion module uses the CH7511 B-BF conversion chip.
7. A display device, characterized in that, The device includes a device body and a graphics card high / low level free switching circuit according to any one of claims 1 to 6, wherein the output terminal of the LVDS connector is used for electrical connection with the input terminal of the device body.