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Cushion isolating material, liquid crystal panel, liquid crystal display device and preparation method of cushion isolating material

A liquid crystal panel and spacer technology, which is applied in the field of liquid crystal display, can solve the problems of aggravating the brightness change of the liquid crystal panel, difficulty in restoring the main spacer, and uneven display of the liquid crystal panel, so as to reduce birefringence and anisotropy , the effect of good display effect

Active Publication Date: 2013-03-27
BOE TECH GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the absence of external force, the liquid crystal panel is only supported by the main spacer; when the liquid crystal panel is squeezed by a certain external pressure, the main spacer will have a certain inclination due to sliding relative to the array substrate, and the secondary The spacer gradually comes into contact with the array substrate, and the external pressure is borne by the sub-spacer; when the external pressure is removed from the LCD panel, due to the friction between the main spacer and the array substrate, it is difficult for the main spacer to return to its original position. position, resulting in parallel misalignment between the color filter substrate and the array substrate, resulting in horizontal misalignment, light leakage, and uneven display of the LCD panel.
[0004] In addition, since the base of the color filter substrate and the array substrate is usually made of transparent glass material, when external stress is applied to the liquid crystal panel, the spacers supported between the color filter substrate and the array substrate will be distorted or The displacement effect will also generate local stress on the glass that forms the substrate of the color filter substrate and the array substrate, and the concentration or accumulation of the stress will cause the distortion of the glass, so that the glass also produces a birefringence phenomenon. This birefringence effect is related to the liquid crystal. The birefringence effect is superimposed or subtracted, resulting in a change in the phase retardation Δn*d when the light passes through the liquid crystal, which affects the brightness change of the liquid crystal in the dark state, and further aggravates the brightness change of the liquid crystal panel

Method used

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  • Cushion isolating material, liquid crystal panel, liquid crystal display device and preparation method of cushion isolating material
  • Cushion isolating material, liquid crystal panel, liquid crystal display device and preparation method of cushion isolating material
  • Cushion isolating material, liquid crystal panel, liquid crystal display device and preparation method of cushion isolating material

Examples

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preparation example Construction

[0035] The preparation method of the above-mentioned spacer includes the step of forming the first top and the second top of the concave-convex structure.

[0036] A liquid crystal panel, comprising a color filter substrate and an array substrate, a spacer is arranged between the color filter substrate and the array substrate, and the spacer is the spacer mentioned above.

[0037] A liquid crystal display device, comprising a liquid crystal panel and a drive circuit connected to the liquid crystal panel, the liquid crystal panel being the above-mentioned liquid crystal panel.

[0038] It should be noted that, the first part includes a first top, or, a first top and a first top, and the second part includes a second top, or, a second top and a second bottom, and the first part and The second part can be combined in any structure, for example, the first part is the first top part, and the second part is the second top part and the second bottom part.

[0039] The top of the fir...

Embodiment 1

[0042] Such as figure 1 As shown, the liquid crystal panel includes a color filter substrate 1 and an array substrate 4 arranged in parallel, a liquid crystal cell is formed between the color filter substrate 1 and the array substrate 4, the liquid crystal cell is filled with liquid crystal 3, and the sealant 2 is used to seal the The liquid crystal 3 is packaged in a liquid crystal box.

[0043] Such as figure 2 As shown, the spacer is disposed between the color filter substrate and the array substrate of the liquid crystal panel, the spacer includes a first part 5 and a second part 6, and the first part includes a first top 51 and a first bottom 52 , the second component includes a second top 61, and the first top 51 and the second top 61 are in a concave-convex fit structure.

[0044] In this embodiment, the shape of the top of the first top 51 is a convex arc surface, the shape of the top of the second top 61 is a concave arc surface, and the first top with a convex arc...

Embodiment 2

[0068] The structure of the spacer in this embodiment is different from the structure of the spacer in Embodiment 1. Compared with Embodiment 1, the second part of the spacer in this embodiment further includes a second bottom.

[0069] Figure 5 Shown is a schematic structural diagram of the spacer in this embodiment. In the spacer of this embodiment, the second component also has a second bottom 62 of regular shape, the top of the second bottom 62 is connected with the bottom of the second top 61 as one, and the second bottom 62 The shape and area of ​​the top end of the top are adapted to the shape and area of ​​the bottom end of the second top 61, and the vertical central axis of the second bottom is on the same line as the central axis of the second top. The shape of the second bottom is one of cylinder shape, ball table shape, conical frustum shape or ellipsoid shape.

[0070]In this embodiment, the second top 61 of the second component is formed by positive photoresi...

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Abstract

The invention relates to a cushion isolating material which is arranged between a color film base panel and an array base panel of a liquid crystal panel. The cushion isolating material comprises a first component and a second component, wherein the first component comprises a first top part; the second component comprises a second top part; and the structures of the first top part and the second top part are matched concavely and convexly. Accordingly, the invention provides a preparation method of the cushion isolating material, the liquid crystal panel comprising the cushion isolating material, and a liquid crystal display device. The cushion isolating material can be used for effectively decreasing the stress between glass as a substrate in the liquid crystal panel, so that the anisotropy of the glass is decreased effectively, and the birefringence phenomenon of the glass is reduced. Therefore, the influence of the effective phase delay quantity (delta n*d) of the liquid crystal due to the phase delay quantity caused by the glass is eliminated, and the light leak of the liquid crystal panel is lightened correspondingly, i.e., the uniformity of luminance of light rays penetrating the liquid crystal panel is ensured, and the poor luminance effects such as a dark state Mura are decreased effectively. Consequently, the good display effect of the liquid crystal display device is realized.

Description

technical field [0001] The invention belongs to the field of liquid crystal display, and relates to a spacer, a liquid crystal panel, a liquid crystal display device and a preparation method of the spacer. Background technique [0002] A liquid crystal panel is an important part of a liquid crystal display device. The liquid crystal panel includes a color filter substrate, an array substrate, and a liquid crystal layer disposed on the two substrates. The liquid crystal display device displays images through the birefringence effect of the liquid crystal, so the stability of the thickness of the liquid crystal layer has an important influence on the display quality of the liquid crystal display device. [0003] In the prior art, the color filter substrate and the array substrate are arranged parallel to each other, and the thickness of the liquid crystal layer (that is, the cell thickness) is controlled by a columnar spacer or a pair of primary and secondary spacers arranged...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02F1/1339G03F7/00
Inventor 张雨柳在健杨亚锋
Owner BOE TECH GRP CO LTD
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