Electronic paper and liquid crystal display driving module thereof

Abstract

The utility model discloses electronic paper and a liquid crystal display driving module. The driving module comprises a plurality of driving boards which are arranged in a stacked mode. A first connector is arranged at the top of each driving plate, and the driving plates are arranged in a staggered mode, so that the first connector on the lower-layer driving plate is located at one end of the upper-layer driving plate. Through staggered arrangement of the connectors and the driving boards, interference between the connectors and the driving boards is avoided in the stacking process, the thickness of the multi-layer module stacking structure is effectively reduced, the thickness of the whole machine is further reduced, meanwhile, the driving boards can be conveniently installed and taken out, and follow-up whole machine assembly is facilitated.

Description

TECHNICAL FIELD

[0001] The utility model relates to liquid crystal display technical field especially, relate to an electronic paper and liquid crystal display drive module. BACKGROUND

[0002] Based on the low power consumption characteristics of bistable display technology, people pay more and more attention in recent years. The common products using bistable technology include electronic ink screen, cholesteric liquid crystal, etc. Among them, cholesteric liquid crystal is a kind of chiral nematic liquid crystal, which reflects light of a certain wavelength by means of twisted liquid crystal layer, and the liquid crystal has bistable function, which can keep the picture after power failure. Single-layer cholesteric display device includes upper and lower substrates, and cholesteric liquid crystal layer is clamped between the upper and lower substrates. The color of single-layer display mainly depends on the color of cholesteric liquid crystal, and in order to realize the display function of multiple colors of electronic paper, most of the prior art adopts multi-layer cholesteric liquid crystal structure.

[0003] The display device formed by stacking the multi-layer liquid crystal structure needs to set an independent drive board for each layer of liquid crystal structure, and a connector connected with the outside is arranged on each drive board. In order to ensure the screen ratio, the multi-layer drive boards are usually arranged in layers. Due to the arrangement of the connector, the stacking thickness of the multi-layer drive boards is greater than the stacking thickness of the multi-layer liquid crystal structure. Therefore, the stacking thickness of the multi-layer drive boards directly affects the overall thickness of the display device. SUMMARY

[0004] In order to solve the technical problems in the background art, the utility model provides an electronic paper and liquid crystal display drive module.

[0005] The utility model provides a kind of liquid crystal display drive module, comprising: drive module;Drive module includes the multiple drive boards of layer arrangement;Each drive board top is equipped with first connector, and the multiple drive boards are staggered arrangement, so that the first connector on lower drive board is located in one end of upper drive board.

[0006] Preferably, each drive board top is further equipped with second connector, and the second connector of the multiple drive boards is staggered arrangement, and the second connector of lower drive board is arranged on the upper drive board for the accommodation opening of the second connector.

[0007] Preferably, it includes first drive module and second drive module;

[0008] The first drive module includes a plurality of first drive boards arranged in layers, and the second drive module includes a plurality of second drive boards arranged in layers, the first drive boards and the second drive boards are arranged one by one, and the first connectors of the corresponding group of drive boards are connected by a flexible circuit board.

[0009] The second driving plate is further provided with a second connector, and the upper second driving plate is provided with a clearance opening for accommodating the second connector of the lower second driving plate.

[0010] Preferably, the first connectors on the first driving plate and the second driving plate are oppositely arranged.

[0011] Preferably, the plurality of second connectors are sequentially arranged in a direction away from the first connector.

[0012] Preferably, the plurality of driving plates gradually decrease in length from top to bottom.

[0013] In the utility model, the liquid crystal display driving module is provided with a plurality of driving plates arranged in a stack; each driving plate is provided with a first connector at the top, and the plurality of driving plates are arranged in a staggered manner, so that the first connector on the lower driving plate is located at one end of the upper driving plate. By arranging the connectors and the driving plates in a staggered manner, interference between the connectors and the driving plates is avoided during stacking, and the thickness of the multi-layer module stacking structure is effectively reduced, thereby reducing the thickness of the whole machine, facilitating the loading and unloading of the driving plates, and facilitating subsequent assembly of the whole machine.

[0014] The utility model further provides an electronic paper comprising the above-mentioned liquid crystal display driving module.

[0015] Preferably, the utility model further comprises a display module, and the display module comprises a plurality of liquid crystal structures, and each driving plate is connected with a liquid crystal structure.

[0016] Preferably, the first driving module and the second driving module are located at one side of the display module and are respectively located at two ends of the display module.

[0017] In the utility model, the technical effect of the electronic paper is similar to that of the above-mentioned liquid crystal display driving module, and thus will not be repeated. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is a schematic diagram of a liquid crystal display driving module in the prior art.

[0019] Figure 2 It is a structural schematic diagram of one embodiment of the liquid crystal display driving module provided by the utility model.

[0020] Figure 3 It is Figure 2 It is a schematic diagram of the multi-layer driving plate of the liquid crystal display driving module.

[0021] Figure 4 It is a structural schematic diagram of another embodiment of the liquid crystal display driving module provided by the utility model.

[0022] Figure 5An arrangement schematic diagram of one embodiment of the electronic paper is provided in the utility model. DETAILED DESCRIPTION

[0023] REFERENCE Figure 2 and 3 The utility model provides a liquid crystal display drive module, include: drive module, drive module includes a plurality of drive boards of laminated arrangement, every drive board top is equipped with first connector 3, a plurality of drive boards staggered arrangement, so that the first connector 3 on the lower drive board is located in the one end of upper drive board.

[0024] In order to explain the liquid crystal display drive module of this embodiment in detail, the utility model further provides an electronic paper, including the liquid crystal display drive module described above.Specifically, it further includes a display module, the display module includes a plurality of liquid crystal structures 10, and each drive board is connected with a liquid crystal structure 10.Each liquid crystal structure is connected with the outside through the drive board.After assembly, the plurality of drive boards are stacked in turn, and the first connectors thereon are staggered in turn, so that the thickness of the drive module in the first connector area is only the thickness of the plurality of drive boards and one first connector.

[0025] In the embodiment, the liquid crystal display drive module proposed, the drive module includes a plurality of drive boards of laminated arrangement, every drive board top is equipped with first connector, a plurality of drive boards staggered arrangement, so that the first connector 3 on the lower drive board is located in the one end of upper drive board. Through the connector and the drive board staggered arrangement, avoid the interference of the connector and the drive board in the stacking process, and effectively reduce the thickness of the multi-layer module stacking structure, and then reduce the thickness of the whole machine, facilitate the drive board to be loaded and taken out, and facilitate subsequent whole machine assembly.

[0026] REFERENCE Figure 1 In the specific embodiment of the drive module, when two sensors are arranged on the drive module, in order to facilitate the connection of the connector with the outside, the two sensors can be arranged in different directions of the drive board.When color display is realized through the plurality of liquid crystal structures, the second connector needs to be controlled for different colors.For example, when three layers of liquid crystal structures correspond to red, green and blue respectively, in order to meet the RGB color mixing effect of three layers of liquid crystal display, the second connectors of different layers need to be arranged at specified positions.Therefore, through the staggered arrangement of the drive board, the second connector cannot be accommodated.At this time, the thickness of the drive module in the second connector area is the thickness of the plurality of drive boards and the plurality of second connectors.Meanwhile, in order to avoid the existence of the second connector between the adjacent two layers of drive boards, causing the distance between different layers to be different, causing the second connector to be unbalanced in stress.Usually, a plurality of second connectors are arranged on the lower drive, for balancing the distance and stress between the two layers of drive boards, wherein, in addition to the main second connector of the drive board being used for connection, the other second connectors are arranged corresponding to the main second connectors of other layers, and are in an idle state.

[0027] To solve the above problems, in a specific design, each driving plate is further provided with a second connector 4, the second connectors 4 of the plurality of driving plates are staggered, and the upper driving plate is provided with a let-out opening 6 for accommodating the second connector 4 of the lower driving plate. When assembled, the second connector on each lower driving plate is located in the corresponding let-out opening above, and the plurality of driving plates are sequentially stacked, so that the thickness of the driving module in the second connector area is the thickness of the plurality of driving plates and one second connector. At the same time, since the upper and lower driving plates are stacked, the distance and stress between them are balanced, and there is no need to additionally provide an idle second connector, which reduces the thickness and reduces the cost of the device.

[0028] Taking a red-green-blue three-layer liquid crystal structure as an example, the lowermost driving plate of the second driving module is provided with one second connector, the middle driving plate is provided with one second connector and one let-out notch for accommodating the second connector of the lower driving plate, and the uppermost driving plate is provided with one second connector and two let-out notches for accommodating the second connectors of the lower driving plates.

[0029] In a specific embodiment of the electronic paper, referring to Figure 4 , the driving module of the electronic paper includes a first driving module and a second driving module located on one side of the display module and at both ends of the display module, respectively. The first driving module includes a plurality of first driving plates 1 stacked, and the second driving module includes a plurality of second driving plates 2 stacked, the first driving plates 1 and the second driving plates 2 are arranged one by one, and the first connectors 3 of the corresponding driving plates are connected by a flexible circuit board 5; the second driving plate 2 is further provided with a second connector 4, and the upper second driving plate 2 is provided with a let-out opening for accommodating the second connector 4 of the lower second driving plate 2. The display module and the driving module are arranged reasonably. Specifically, the first connectors 3 on the first driving plates 1 and the second driving plates 2 are oppositely arranged. The first connectors on the corresponding driving plates of the two driving modules are oppositely arranged and connected by FPC. The plurality of second connectors 4 are sequentially arranged away from the first connectors 3.

[0030] Referring to Figure 5 , in order to improve the space utilization rate of the driving module in the entire electronic paper, the lengths of the plurality of driving plates gradually decrease from top to bottom, so that the plurality of driving plates stacked from top to bottom are sequentially staggered and arranged in steps at the position of the first connector, and aligned with the display module at the edge of the module. When the electronic paper includes two driving modules, the driving plates of the two driving modules are respectively aligned with the edges of the display module on both sides, so as to ensure the maximum screen ratio.

[0031] The above merely describes a preferred embodiment of the present application, and the protection scope of the present application is not limited thereto, and any skilled person in the art, according to the technical scheme and the inventive concept of the present application, makes equivalent replacement or change within the technical range disclosed by the present application, which should be covered within the protection scope of the present application.

Claims

1. A liquid crystal display driving module, characterized in that, include: The driving module includes multiple driving boards stacked on top of each other; each driving board is provided with a first connector (3) on its top, and the multiple driving boards are staggered so that the first connector (3) on the lower driving board is located at one end of the upper driving board.

2. The liquid crystal display driving module according to claim 1, characterized in that, Each drive board is also provided with a second connector (4) at the top. The second connectors (4) of multiple drive boards are staggered. The upper drive board is provided with a clearance opening (6) to make way for the second connector (4) of the lower drive board.

3. The liquid crystal display driving module according to claim 2, characterized in that, Includes a first drive module and a second drive module; The first driving module includes multiple stacked first driving boards (1), and the second driving module includes multiple stacked second driving boards (2). The first driving boards (1) and the second driving boards (2) are arranged in a one-to-one correspondence, and the first connector (3) of a set of driving boards arranged in a corresponding manner is connected by a flexible circuit board (5). The second drive plate (2) is also provided with a second connector (4), and the upper second drive plate (2) is provided with a clearance opening (6) for making way for the second connector (4) of the lower second drive plate (2).

4. The liquid crystal display driving module according to claim 3, characterized in that, The first connector (3) on the first drive board (1) and the second drive board (2) are arranged opposite to each other.

5. The liquid crystal display driving module according to claim 2, characterized in that, Multiple second connectors (4) are arranged sequentially in a direction away from the first connector (3).

6. The liquid crystal display driving module according to claim 1, characterized in that, The length of the multiple driver boards gradually decreases from top to bottom.

7. An electronic paper, characterized in that, Includes the liquid crystal display driving module according to any one of claims 1-6.

8. The electronic paper according to claim 7, characterized in that, It also includes a display module, which includes a multilayer liquid crystal structure (10), with each driver board connected to a liquid crystal structure (10).

9. The electronic paper according to claim 7, characterized in that, The first driving module and the second driving module are located on one side of the display module and at both ends of the display module, respectively.

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