Structure for improving vibration resistance of display screen

Abstract

The utility model discloses a structure for improving the vibration resistance of a display screen, which comprises a TFT (Thin Film Transistor) substrate film layer and a CF (Color Filter) substrate film layer, and a main columnar spacer, an auxiliary columnar spacer II and an auxiliary columnar spacer I are arranged between the TFT substrate film layer and the CF substrate film layer; an Active layer is arranged in a position, corresponding to the auxiliary columnar spacer I, in the TFT substrate film layer; according to the invention, a proper amount of cushion block Active layers opposite to the auxiliary columnar spacers I are added in the display area of the film layer of the TFT substrate, so that part of Sub-PS (auxiliary columnar spacers I) can play a role in supporting more quickly, the auxiliary role of the auxiliary columnar spacers is increased, the vibration resistance of the display screen is improved, the product yield is increased, and the market competitiveness of the product is improved; the method is more suitable for large and medium-sized display screens.

Description

Technical Field

[0001] The utility model relates to the technical field of display screens, and specifically relates to a structure for improving the anti-vibration ability of a display screen. Background Art

[0002] Columnar spacers (Post Spacer, abbreviated as PS) can play a role in maintaining the gap between the TFT substrate and the CF substrate, that is, stabilizing the thickness of the liquid crystal cell. In the liquid crystal cell, there are generally two types of PS. One is the main PS (Main-PS) that maintains the thickness of the liquid crystal cell under normal circumstances, and the other is the auxiliary PS (Sub-PS) that only plays a supporting role when subjected to external force extrusion. Under the condition of normal liquid crystal volume, the main PS that supports and maintains the thickness of the liquid crystal cell must be compressed by a certain percentage, and the elastic force generated by the compression of the PS maintains the thickness of the liquid crystal cell within a certain temperature change range without gravity Mura or vacuum bubbles.

[0003] When the liquid crystal screen is subjected to external force extrusion (such as vibration, impact, pressing, etc.), the main PS is further compressed to generate a greater supporting elastic force, and the auxiliary PS should also come into contact to generate a supporting force to prevent the further decrease of the thickness of the liquid crystal cell; when the external force is large, the deformation generated by the main and auxiliary PS for support will also be large, which is likely to cause the main PS to undergo plastic deformation and cannot be restored, resulting in yellow spot defects, thus affecting the yield of the product. Summary of the Utility Model

[0004] The utility model aims to provide a technical solution to solve the above problems in order to overcome the above deficiencies.

[0005] To achieve the above purpose, the utility model provides the following technical solution: A structure for improving the anti-vibration ability of a display screen, including a TFT substrate film layer and a CF substrate film layer. A main columnar spacer, a second auxiliary columnar spacer, and a first auxiliary columnar spacer are arranged between the TFT substrate film layer and the CF substrate film layer; an Active layer is arranged at a position in the TFT substrate film layer corresponding to the first auxiliary columnar spacer.

[0006] As a further scheme of the utility model: A plurality of the main columnar spacers, the second auxiliary columnar spacers, and the first auxiliary columnar spacers are arranged between the TFT substrate film layer and the CF substrate film layer and are arranged in a cross pattern from left to right.

[0007] As a further scheme of the utility model: The unit area densities of the main columnar spacer and the first auxiliary columnar spacer between the TFT substrate film layer and the CF substrate film layer are both small, and the unit area densities of the main columnar spacer and the first auxiliary columnar spacer are not very different.

[0008] As a further scheme of the utility model: The unit area density of the second auxiliary columnar spacer between the TFT substrate film layer and the CF substrate film layer is large.

[0009] As a further solution of the present utility model: the deformation height of the main columnar spacer in the region between the TFT substrate film layer and the CF substrate film layer is the deformation height of the main columnar spacer.

[0010] As a further solution of the present utility model: the heights of the main columnar spacer, the secondary columnar spacer two, and the secondary columnar spacer one are all the same.

[0011] As a further solution of the present utility model: after the Active layer is disposed in the TFT substrate film layer corresponding to the secondary columnar spacer one, the distance from the secondary columnar spacer one to the TFT substrate film layer is less than the distance from the secondary columnar spacer two to the TFT substrate film layer.

[0012] As a further solution of the present utility model: the distance from the main columnar spacer to the TFT substrate film layer is less than the distance from the secondary columnar spacer one to the TFT substrate film layer which is less than the distance from the secondary columnar spacer two to the TFT substrate film layer.

[0013] As a further solution of the present utility model: the force on the main columnar spacer is greater than the force on the secondary columnar spacer one which is greater than the force on the secondary columnar spacer two.

[0014] As a further solution of the present utility model: the main columnar spacer, the secondary columnar spacer two, and the secondary columnar spacer one are all of cylindrical structure.

[0015] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0016] In this application, by adding an appropriate amount of the pad Active layer opposite to the secondary columnar spacer one in the display area of the TFT substrate film layer, part of the Sub-PS (secondary columnar spacer one) can play a supporting role faster, thereby increasing the auxiliary effect of the secondary columnar spacer, improving the anti-vibration ability of the display screen, improving the product yield, increasing the market competitiveness of the product, and being more suitable for large and medium-sized display screens. Description of the Drawings

[0017] Figure 1 It is the front sectional structure schematic diagram of the present utility model.

[0018] The reference numerals and names in the figure are as follows:

[0019] 1, CF substrate film layer; 2, TFT substrate film layer; 3, main columnar spacer; 4, secondary columnar spacer two; 5, secondary columnar spacer one; 6, Active layer. Detailed Embodiments

[0020] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0021] Please refer to Figure 1 , a structure for improving the anti-vibration ability of a display screen, including a TFT substrate film layer 2 and a CF substrate film layer 1. A main columnar spacer 3, a secondary columnar spacer two 4, and a secondary columnar spacer one 5 are provided between the TFT substrate film layer 2 and the CF substrate film layer 1; an Active layer 6 (i.e., an Island film layer) is provided at a position in the TFT substrate film layer 2 corresponding to the secondary columnar spacer one 5.

[0022] Please refer to Figure 1 , in this embodiment, a plurality of main columnar spacers 3, secondary columnar spacers two 4, and secondary columnar spacers one 5 are provided between the TFT substrate film layer 2 and the CF substrate film layer 1 and are arranged crosswise from left to right; the unit area density of the main columnar spacer 3 and the secondary columnar spacer one 5 between the TFT substrate film layer 2 and the CF substrate film layer 1 is relatively small, and the unit area density of the main columnar spacer 3 and the secondary columnar spacer one 5 differs little, while the unit area density of the secondary columnar spacer two 4 between the TFT substrate film layer 2 and the CF substrate film layer 1 is relatively large.

[0023] Specifically, a main columnar spacer 3, a secondary columnar spacer two 4, and a secondary columnar spacer one 5 are provided between the TFT substrate film layer 2 and the CF substrate film layer 1, and a plurality of columnar spacers are arranged crosswise according to a certain proportional rule. The main columnar spacer 3 can effectively maintain the liquid crystal cell thickness, and the secondary columnar spacer two 4 and the secondary columnar spacer one 5 play a supporting role when subjected to external force extrusion, enabling the product to have two types of secondary columnar spacers with stable liquid crystal cell thicknesses. And the Main-PS and Sub-PS in the display screen are arranged crosswise according to a certain proportional rule. The distinction between the main columnar spacer 3, the secondary columnar spacer two 4, and the secondary columnar spacer one 5 is mainly made by the position on the corresponding TFT substrate film layer 2. Among them, the PS corresponding to the higher position in the TFT substrate film layer 2 is the main PS (main columnar spacer 3), and its proportion is smaller compared to the secondary columnar spacer two 4. It is mainly used to maintain the liquid crystal cell thickness under normal circumstances. The proportion of the secondary PS (secondary columnar spacer two 4) is larger (unit area density), and its proportion is larger compared to the main columnar spacer 3 and the secondary columnar spacer one 5. It plays a supporting role when subjected to external force extrusion. The proportion of the main PS (main columnar spacer 3) is very small (unit area density). For example, there are 4 - 5 main PS (main columnar spacers 3) among 50 - 60 SubPS.

[0024] Please refer to Figure 1 In this embodiment, the deformation height of the main columnar spacer 3 is in the area between the TFT substrate film layer 2 and the CF substrate film layer 1; the heights of the main columnar spacer 3, the secondary columnar spacer two 4, and the secondary columnar spacer one 5 are all the same.

[0025] Specifically, the main columnar spacer 3 has the effect of maintaining the cell gap, which can ensure that the thickness of each part of the liquid crystal cell is maintained uniformly, ensuring the normal use of the liquid crystal cell. The secondary columnar spacer two 4 and the secondary columnar spacer one 5 play a supporting role when subjected to external force extrusion.

[0026] Please refer to Figure 1 In this embodiment, after the Active layer 6 is disposed in the TFT substrate film layer 2 corresponding to the secondary columnar spacer one 5, the distance from the secondary columnar spacer one 5 to the TFT substrate film layer 2 is less than the distance from the secondary columnar spacer two 4 to the TFT substrate film layer 2.

[0027] Specifically, that is to say, when the liquid crystal cell is subjected to external vibration resulting in extrusion, the secondary columnar spacer one 5 can first contact the TFT substrate film layer 2, and then the secondary columnar spacer two 4 contacts the TFT substrate film layer 2. The secondary columnar spacer one 5 plays an auxiliary supporting role faster, and then cooperates with the assistance of the secondary columnar spacer two 4 to improve the anti-vibration ability of the display screen.

[0028] Please refer to Figure 1 In this embodiment, the distance from the main columnar spacer 3 to the TFT substrate film layer 2 is less than the distance from the secondary columnar spacer one 5 to the TFT substrate film layer 2 which is less than the distance from the secondary columnar spacer two 4 to the TFT substrate film layer 2, and the force on the main columnar spacer 3 is greater than the force on the secondary columnar spacer one 5 which is greater than the force on the secondary columnar spacer two 4.

[0029] Specifically, when the liquid crystal screen is subjected to external force extrusion (such as vibration, impact, pressing, etc.), the compression sequence is as follows: the main columnar spacer 3, the secondary columnar spacer one 5, the secondary columnar spacer two 4. Because Main PS Height < Sub PS Height-1 < Sub PS Height-2, the force on Sub PS-1 (the secondary columnar spacer one 5) > the force on Sub PS-2 (the secondary columnar spacer two 4), which can play a certain impedance force when the main columnar spacer 3 is compressed, avoiding the main columnar spacer 3 from being over-compressed and generating plastic deformation, resulting in the appearance of display yellow spots and affecting the product yield.

[0030] Please refer to Figure 1 In this embodiment, the main columnar spacer 3, the secondary columnar spacer two 4, and the secondary columnar spacer one 5 are all cylindrical structures.

[0031] Specifically, the columnar spacer with a cylindrical structure can play a better supporting role, enhance the supporting force, and ensure the stability of the product.

[0032] It should be noted that referring to Figure 1 ,

[0033] I. The film layer sequence of a conventional TFT substrate is as follows:

[0034] 1) Gate layer, mainly for the control lines of the TFT; 2) Active layer: semiconductor layer; 3) Pixel electrode layer; 4) SD layer, mainly for the signal lines of the TFT; 5) PA protective layer (PVX); 6) VITO, common electrode layer.

[0035] II. The film layer sequence of a conventional CF substrate: BM-RED-GREEN-BLUE-OC-PS.

[0036] For those skilled in the art, it is obvious that the present utility model is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic characteristics of the present utility model. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present utility model is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be encompassed by the present utility model. Any reference signs in the claims should not be construed as limiting the claimed rights.

Claims

1. A structure for improving the vibration resistance of a display screen, characterized in that: It comprises a TFT substrate film layer (2) and a CF substrate film layer (1), wherein a main columnar spacer (3), a second auxiliary columnar spacer (4) and a first auxiliary columnar spacer (5) are arranged between the TFT substrate film layer (2) and the CF substrate film layer (1); An Active layer (6) is provided in the TFT substrate film layer (2) at a position corresponding to the auxiliary columnar spacer (5); The main columnar spacer (3), the second auxiliary columnar spacer (4) and the first auxiliary columnar spacer (5) are arranged in plurality between the TFT substrate film layer (2) and the CF substrate film layer (1) and are arranged crosswise from left to right.

2. A structure for improving the anti-vibration capability of a display screen according to claim 1, characterized in that: The unit area density of the main columnar spacer (3) and the auxiliary columnar spacer (5) between the TFT substrate film layer (2) and the CF substrate film layer (1) are both relatively small, and the unit area density of the main columnar spacer (3) and the auxiliary columnar spacer (5) is not much different.

3. The structure for improving the anti-vibration capability of a display screen according to claim 1, characterized in that: The unit area density of the auxiliary columnar spacer 2 (4) between the TFT substrate film layer (2) and the CF substrate film layer (1) is relatively large.

4. The structure for improving the anti-vibration capability of a display screen according to claim 1, characterized in that: The area of ​​the main columnar spacer (3) between the TFT substrate film layer (2) and the CF substrate film layer (1) is the deformation height of the main columnar spacer (3).

5. The structure for improving the anti-vibration capability of a display screen according to claim 1, characterized in that: The main columnar spacer (3), the second auxiliary columnar spacer (4) and the first auxiliary columnar spacer (5) are all of the same height.

6. The structure for improving the anti-vibration capability of a display screen according to claim 1, characterized in that: When the Active layer (6) is arranged in the TFT substrate film layer (2) corresponding to the auxiliary columnar spacer one (5), the distance from the auxiliary columnar spacer one (5) to the TFT substrate film layer (2) is smaller than the distance from the auxiliary columnar spacer two (4) to the TFT substrate film layer (2).

7. The structure for improving the anti-vibration capability of a display screen according to claim 1, characterized in that: The distance between the main columnar spacer (3) and the TFT substrate film layer (2) is smaller than the distance between the auxiliary columnar spacer 1 (5) and the TFT substrate film layer (2), which is smaller than the distance between the auxiliary columnar spacer 2 (4) and the TFT substrate film layer (2).

8. The structure for improving the anti-vibration capability of a display screen according to claim 1, characterized in that: The force applied to the main columnar spacer (3) is greater than that applied to the auxiliary columnar spacer (5), and the force applied to the auxiliary columnar spacer (2) is greater than that applied to the auxiliary columnar spacer (4).

9. The structure for improving the anti-vibration capability of a display screen according to claim 1, characterized in that: The main columnar spacer (3), the second auxiliary columnar spacer (4) and the first auxiliary columnar spacer (5) are all cylindrical structures.

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