Drive control circuit and LCD display system

Abstract

The driving control circuit provided by the application comprises a source electrode driving module, a horizontal circuit control board, a first source electrode driving submodule, a second source electrode driving submodule, a third source electrode driving submodule and a fourth source electrode driving submodule; the horizontal circuit control board is electrically connected with the source electrode driving module and comprises a first horizontal circuit control board, a second horizontal circuit control board and a third horizontal circuit control board; the first source electrode driving submodule is electrically connected with the first horizontal circuit control board; the second source electrode driving submodule is electrically connected with the first horizontal circuit control board and the second horizontal circuit control board; the third source electrode driving submodule is electrically connected with the second horizontal circuit control board and the third horizontal circuit control board; and the fourth source electrode driving submodule is electrically connected with the third horizontal circuit control board. The driving control circuit provided by the embodiment of the application realizes that three horizontal circuit control boards output four groups of differential signals, reduces production cost and improves signal transmission quality.

Description

Technical Field

[0001] This utility model relates to the field of liquid crystal display equipment technology, and in particular to a drive control circuit and an LCD display system. Background Technology

[0002] In today's LCD panel industry, large-size LCD panels are typically configured with multiple smaller circuit control boards. For example, due to manufacturing process limitations, an 85-inch LCD panel cannot use two horizontal circuit control boards for circuit driving. Therefore, the industry practice is to use a design with four horizontal circuit control boards to transmit four sets of differential signals, meaning one horizontal circuit control board transmits one set of signals. However, four horizontal circuit control boards require at least eight circuit connectors for connection, which increases production costs, and the large number of circuit connectors can affect signal transmission quality. Utility Model Content

[0003] In view of at least some of the problems and defects in the prior art, this utility model discloses a driving control circuit and an LCD display system to solve the problems of high production cost and severe signal transmission quality attenuation in existing circuit driving schemes.

[0004] Specifically, this utility model embodiment provides a drive control circuit electrically connected to a display panel, the display panel including a source drive circuit, and the drive control circuit electrically connected to the source drive circuit; the drive control circuit includes: a source drive module electrically connected to the source drive circuit, the source drive module including multiple source drive sub-modules, each source drive sub-module including at least one source driver, the source drive module including a first source drive sub-module, a second source drive sub-module, a third source drive sub-module, and a fourth source drive sub-module; and a horizontal circuit control board electrically connected to the source drive module via a differential signal, the horizontal circuit control board including an electrically connected first horizontal... The circuit control board, the second horizontal circuit control board, and the third horizontal circuit control board; wherein, the first source driver submodule is electrically connected to the first horizontal circuit control board, a portion of the source drivers in the second source driver submodule are electrically connected to the first horizontal circuit control board, and another portion of the source drivers in the second source driver submodule are electrically connected to the second horizontal circuit control board, a portion of the source drivers in the third source driver submodule are connected to the second horizontal circuit control board, and a portion of the source drivers in the third source driver submodule are electrically connected to the third horizontal circuit control board, and the fourth source driver submodule is electrically connected to the third horizontal circuit control board.

[0005] The driving control circuit provided in this embodiment of the utility model, through reasonable circuit design, realizes the transmission of four sets of differential signals using three horizontal circuit control boards. Compared with the existing driving scheme, it reduces the number of horizontal circuit control boards, thereby reducing the number of required circuit connectors, which simplifies the production process of LCD panels. This not only reduces the production cost of LCD panels but also improves production efficiency. In addition, reducing the number of horizontal circuit control boards allows for shorter signal transmission traces, thereby improving signal transmission quality.

[0006] In one embodiment of this utility model, the first source driver submodule includes a first source driver, a second source driver, and a third source driver, which are electrically connected to the first horizontal circuit control board. The second source driver submodule includes a fourth source driver, a fifth source driver, and a sixth source driver, which are electrically connected to the first horizontal circuit control board, and the fifth and sixth source drivers are electrically connected to the second horizontal circuit control board. The third source driver submodule includes a seventh source driver, an eighth source driver, and a ninth source driver, which are electrically connected to the second horizontal circuit control board, and the ninth source driver is electrically connected to the third horizontal circuit control board. The fourth source driver submodule includes a tenth source driver, an eleventh source driver, and a twelfth source driver, which are electrically connected to the third horizontal circuit control board.

[0007] In one embodiment of the present invention, at least one of the first horizontal circuit control board, the second horizontal circuit control board and the third horizontal circuit control board is provided with a timing control circuit.

[0008] In one embodiment of the present invention, a timing control circuit is provided on the second horizontal circuit control board. The timing control circuit is used to output the differential signal. The first horizontal circuit control board and the third horizontal circuit control board are respectively disposed on both sides of the second horizontal circuit control board and electrically connected to the second horizontal circuit control board.

[0009] In one embodiment of this utility model, the differential signal is a high-speed differential signal, and the horizontal circuit control board transmits the high-speed differential signal to the source drive module.

[0010] In one embodiment of the present invention, the second horizontal circuit control board is electrically connected to the first horizontal circuit control board and the third horizontal circuit control board respectively via a flexible flat cable.

[0011] In one embodiment of this utility model, the first source driver, the second source driver, the third source driver and the fourth source driver are respectively mounted on the first horizontal circuit control board, the fifth source driver, the sixth source driver, the seventh source driver and the eighth source driver are respectively mounted on the second horizontal circuit control board, and the ninth source driver, the tenth source driver, the eleventh source driver and the twelfth source driver are respectively mounted on the third horizontal circuit control board.

[0012] In one embodiment of this utility model, the second horizontal circuit control board transmits the high-speed differential signals corresponding to the fourth source drivers in the first and second source driver submodules to the first horizontal circuit control board via a flexible flat cable, so that the fourth source drivers in the first and second source driver submodules electrically connected to the first horizontal circuit control board respectively output the high-speed differential signals; the second horizontal circuit control board transmits the high-speed differential signals corresponding to the ninth source driver and the fourth source driver submodule in the third source driver submodule to the third horizontal circuit control board via a flexible flat cable, so that the ninth source driver and the fourth source driver submodule in the third source driver submodule electrically connected to the third horizontal circuit control board respectively output the high-speed differential signals.

[0013] On the other hand, another embodiment of the present invention provides an LCD display system, which includes, for example: a display panel, including a pixel unit array and a gate driving circuit and a source driving circuit for driving the pixel unit array; and a driving control circuit as described above, wherein the driving control circuit is electrically connected to the source driving circuit for driving the source driving circuit.

[0014] As can be seen from the above, the technical features of this utility model can have one or more of the following beneficial effects: The driving control circuit provided in the embodiment of this utility model, through reasonable circuit design, realizes the transmission of four sets of differential signals using three horizontal circuit control boards. Compared with the existing driving scheme, it reduces the number of horizontal circuit control boards, thereby reducing the number of required circuit connectors, thus simplifying the production process of the LCD panel. This not only reduces the production cost of the LCD panel but also improves production efficiency. In addition, reducing the number of horizontal circuit control boards can shorten the transmission signal traces, thereby improving the signal transmission quality. Attached Figure Description

[0015] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 The circuit connection diagram of the drive control circuit provided in the embodiment of this utility model.

[0017] Figure 2 Another circuit connection diagram of the drive control circuit provided in an embodiment of this utility model. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be clearly and completely described below in conjunction with specific embodiments and corresponding drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0019] It should be noted that the directional terms mentioned in the embodiments of this utility model, such as "up," "down," "front," "back," "left," "right," "inner," "outer," and "side," are only for reference to the accompanying drawings. Therefore, the directional terms used are for the purpose of explaining and understanding this utility model, and not for limiting this utility model. For the sake of understanding and ease of description, the dimensions and thicknesses of each component shown in the drawings are arbitrarily shown, but this utility model is not limited thereto.

[0020] It is understood that when a component, such as a layer, membrane, region, or substrate, is referred to as "on" another component, the component may be directly on the other component, or there may be intermediate components present. Furthermore, in the specification, unless explicitly stated otherwise, the word "comprising" will be understood to mean including the stated component, but not excluding any other components. Additionally, in the specification, "on" means located above or below the target component, and does not mean necessarily located on top of it based on gravity.

[0021] The following detailed description of some embodiments of the present invention is provided in conjunction with the accompanying drawings. Unless otherwise specified, the following embodiments and features can be combined with each other.

[0022] like Figure 1As shown, this embodiment of the present invention provides a drive control circuit 10. The drive control circuit 10 provided in this embodiment is electrically connected to a display panel, wherein the display panel includes, for example, a source drive circuit, and the drive control circuit 10 is electrically connected to the source drive circuit.

[0023] For details, please refer to [link / reference]. Figure 1 The drive control circuit 10 includes, for example, a source drive module 100 and a horizontal circuit control board 200. The source drive module 100 is electrically connected to the source drive circuit and includes multiple source drive sub-modules, each including at least one source driver. The source drive module 100 includes a first source drive sub-module 110, a second source drive sub-module 120, a third source drive sub-module 130, and a fourth source drive sub-module 140. The horizontal circuit control board 200 is electrically connected to the source drive module 100 via differential signals and includes a first horizontal circuit control board 210, a second horizontal circuit control board 220, and a third horizontal circuit control board 230 that are electrically connected. Specifically, the first source driver submodule 110 is electrically connected to the first horizontal circuit control board 210, a portion of the source drivers in the second source driver submodule 120 are electrically connected to the first horizontal circuit control board 210, and another portion of the source drivers in the second source driver submodule 120 are electrically connected to the second horizontal circuit control board 220, a portion of the source drivers in the third source driver submodule 130 are electrically connected to the second horizontal circuit control board 220, and a portion of the source drivers in the third source driver submodule 130 are electrically connected to the third horizontal circuit control board 230, and the fourth source driver submodule 140 is electrically connected to the control board of the third horizontal circuit 230.

[0024] The driving control circuit provided in this embodiment of the utility model, through reasonable circuit design, realizes the transmission of four sets of differential signals using three horizontal circuit control boards. Compared with the existing driving scheme, it reduces the number of horizontal circuit control boards, thereby reducing the number of required circuit connectors, which simplifies the production process of LCD panels. This not only reduces the production cost of LCD panels but also improves production efficiency. In addition, reducing the number of horizontal circuit control boards allows for shorter signal transmission traces, thereby improving signal transmission quality.

[0025] Further, see Figure 2The first source driver submodule 110 includes a first source driver 111, a second source driver 112, and a third source driver 113, which are electrically connected to the first horizontal circuit control board 210. The second source driver submodule 120 includes a fourth source driver 121, a fifth source driver 122, and a sixth source driver 123, where the fourth source driver 121 is electrically connected to the first horizontal circuit control board 210, and the fifth and sixth source drivers 122 and 123 are electrically connected to the second horizontal circuit control board 220. The third source driver submodule 130 includes a seventh source driver 131, an eighth source driver 132, and a ninth source driver 133, where the seventh and eighth source drivers 131 and 132 are electrically connected to the second horizontal circuit control board 220, and the ninth source driver 133 is electrically connected to the third horizontal circuit control board 230. The fourth source driver submodule 140 includes a tenth source driver 141, an eleventh source driver 142, and a twelfth source driver 143, which are electrically connected to the third horizontal circuit 230 control board. That is, the drive control circuit provided in this embodiment of the invention, through reasonable circuit design, enables the output of four sets of differential signals using only three horizontal circuit control boards.

[0026] As described above, at least one of the first horizontal circuit control board 210, the second horizontal circuit control board 220, and the third horizontal circuit control board 230 is provided with a timing control circuit. Preferably, see [link to relevant documentation]. Figure 2 The second horizontal circuit control board 220 is provided with a timing control circuit, which is used to output the differential signal. The first horizontal circuit control board 210 and the third horizontal circuit control board 230 are respectively disposed on both sides of the second horizontal circuit control board 220 and electrically connected to the second horizontal circuit control board 220. By designing the positions of the three horizontal circuit control boards and the timing control circuit, unnecessary signal transmission attenuation can be reduced.

[0027] Specifically, the differential signal is a high-speed differential signal, and the horizontal circuit control board 200 transmits the high-speed differential signal to the source drive module 100. For example, the high-speed differential signal is a Mini-LVDS (Mini Low-Voltage Differential Signaling) signal.

[0028] Furthermore, the second horizontal circuit control board 220 is electrically connected to the first horizontal circuit control board 210 and the third horizontal circuit control board 230 respectively via flexible flat cables.

[0029] In one specific embodiment, the first source driver 111, the second source driver 112, the third source driver 113, and the fourth source driver 121 are respectively mounted on the first horizontal circuit control board 210; the fifth source driver 122, the sixth source driver 123, the seventh source driver 131, and the eighth source driver 132 are respectively mounted on the second horizontal circuit control board 220; and the ninth source driver 133, the tenth source driver 141, the eleventh source driver 142, and the twelfth source driver 143 are respectively mounted on the third horizontal circuit control board 230. For example, this mounting may involve placing the source drivers at corresponding positions on the horizontal circuit control board and binding the connection lines of the source drivers together with the connection lines of the horizontal circuit control board to achieve electrical connection. This arrangement minimizes signal attenuation.

[0030] As described above, the second horizontal circuit control board 220 transmits the high-speed differential signals corresponding to the fourth source driver 121 in the first source driver submodule 110 and the second source driver submodule 120 to the first horizontal circuit control board 210 via a flexible flat cable, so that the fourth source driver 121 in the first source driver submodule 110 and the second source driver submodule 120, which are electrically connected to the first horizontal circuit control board 210, can output the high-speed differential signals respectively. The second horizontal circuit control board 220 also transmits the high-speed differential signals corresponding to the ninth source driver 133 and the fourth source driver submodule 140 in the third source driver submodule 130 to the third horizontal circuit control board 230 via a flexible flat cable, so that the ninth source driver 133 and the fourth source driver submodule 140 in the third source driver submodule 130, which are electrically connected to the third horizontal circuit control board 230, can output the high-speed differential signals respectively.

[0031] In summary, the driving control circuit provided by this utility model embodiment, through reasonable circuit design, realizes the transmission of four sets of differential signals using three horizontal circuit control boards. Compared with the existing driving scheme, it reduces the number of horizontal circuit control boards, thereby reducing the number of required circuit connectors, which simplifies the LCD panel production process. This not only reduces the production cost of LCD panels but also improves production efficiency. In addition, reducing the number of horizontal circuit control boards allows for shorter signal transmission traces, thereby improving signal transmission quality.

[0032] On the other hand, this utility model also provides an LCD display system. The LCD display system includes, for example, a display panel and the aforementioned driving control circuit 10. The display panel includes a pixel unit array and a gate driving circuit and a source driving circuit for driving the pixel unit array. The driving control circuit 10 is electrically connected to the source driving circuit to drive the source driving circuit.

[0033] It is understood that the foregoing embodiments are merely illustrative examples of this utility model. Provided that the technical features do not conflict, the structure is not contradictory, and the purpose of this utility model is not violated, the technical solutions of the various embodiments can be arbitrarily combined and used.

[0034] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A drive control circuit electrically connected to a display panel, the display panel including a source drive circuit, the drive control circuit being electrically connected to the source drive circuit, characterized in that, The drive control circuit includes: A source driver module is electrically connected to the source driver circuit. The source driver module includes multiple source driver sub-modules. Each source driver sub-module includes at least one source driver. The source driver module includes a first source driver sub-module, a second source driver sub-module, a third source driver sub-module, and a fourth source driver sub-module. A horizontal circuit control board is electrically connected to the source drive module via a differential signal. The horizontal circuit control board includes a first horizontal circuit control board, a second horizontal circuit control board, and a third horizontal circuit control board that are electrically connected. The first source driver submodule is electrically connected to the first horizontal circuit control board; a portion of the source drivers in the second source driver submodule are electrically connected to the first horizontal circuit control board, and another portion of the source drivers in the second source driver submodule are electrically connected to the second horizontal circuit control board; a portion of the source drivers in the third source driver submodule are connected to the second horizontal circuit control board, and a portion of the source drivers in the third source driver submodule are electrically connected to the third horizontal circuit control board; and the fourth source driver submodule is electrically connected to the third horizontal circuit control board.

2. The drive control circuit as described in claim 1, characterized in that, The first source driver submodule includes a first source driver, a second source driver, and a third source driver, which are electrically connected to the first horizontal circuit control board, respectively. The second source driver submodule includes a fourth source driver, a fifth source driver, and a sixth source driver. The fourth source driver is electrically connected to the first horizontal circuit control board, and the fifth and sixth source drivers are respectively electrically connected to the second horizontal circuit control board. The third source driver submodule includes a seventh source driver, an eighth source driver, and a ninth source driver. The seventh source driver and the eighth source driver are electrically connected to the second horizontal circuit control board, and the ninth source driver is electrically connected to the third horizontal circuit control board. The fourth source driver submodule includes a tenth source driver, an eleventh source driver, and a twelfth source driver, which are electrically connected to the third horizontal circuit control board.

3. The drive control circuit as described in claim 1, characterized in that, At least one of the first horizontal circuit control board, the second horizontal circuit control board, and the third horizontal circuit control board is provided with a timing control circuit.

4. The drive control circuit as described in claim 2, characterized in that, The second horizontal circuit control board is provided with a timing control circuit, which is used to output the differential signal. The first horizontal circuit control board and the third horizontal circuit control board are respectively disposed on both sides of the second horizontal circuit control board and electrically connected to the second horizontal circuit control board.

5. The drive control circuit as described in claim 4, characterized in that, The differential signal is a high-speed differential signal, and the horizontal circuit control board transmits the high-speed differential signal to the source drive module.

6. The drive control circuit as described in claim 5, characterized in that, The second horizontal circuit control board is electrically connected to the first horizontal circuit control board and the third horizontal circuit control board respectively via flexible flat cables.

7. The drive control circuit as described in claim 5, characterized in that, The first source driver, the second source driver, the third source driver, and the fourth source driver are respectively mounted on the first horizontal circuit control board; the fifth source driver, the sixth source driver, the seventh source driver, and the eighth source driver are respectively mounted on the second horizontal circuit control board; and the ninth source driver, the tenth source driver, the eleventh source driver, and the twelfth source driver are respectively mounted on the third horizontal circuit control board.

8. The drive control circuit as described in claim 7, characterized in that, The second horizontal circuit control board transmits the high-speed differential signals corresponding to the fourth source drivers in the first source driver submodule and the second source driver submodule to the first horizontal circuit control board via a flexible flat cable, so that the fourth source drivers in the first source driver submodule and the second source driver submodule, which are electrically connected to the first horizontal circuit control board, can output the high-speed differential signals respectively. The second horizontal circuit control board transmits the high-speed differential signals corresponding to the ninth source driver and the fourth source driver submodule in the third source driver submodule to the third horizontal circuit control board via a flexible flat cable, so that the ninth source driver and the fourth source driver submodule in the third source driver submodule electrically connected to the third horizontal circuit control board can output the high-speed differential signals respectively.

9. An LCD display system, characterized in that, include: The display panel includes a pixel unit array and a gate driving circuit and a source driving circuit for driving the pixel unit array. as well as The drive control circuit according to any one of claims 1-8, wherein the drive control circuit is electrically connected to the source drive circuit for driving the source drive circuit.

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