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Color light filter base plate and LCD

A technology of color filters and substrates, which is applied in the directions of instruments, optics, nonlinear optics, etc., and can solve the problems that the opening ratio and the uniform height spacers cannot be completed at the same time

Active Publication Date: 2007-05-16
AU OPTRONICS CORP
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  • Abstract
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AI Technical Summary

Problems solved by technology

[0004] In order to solve the problem that the opening ratio and the spacers of the same height cannot be completed at the same time in the common technology, the present invention provides a color filter substrate, including a substrate; a plurality of color filters are arranged on the substrate, and overlap each other to form multiple a color overlapping area and a hole, the hole is located in one of the color overlapping areas; a planarization layer, covering the color filter and filling the hole; and a transparent conductive layer, located on the planarization layer

Method used

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  • Color light filter base plate and LCD

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Embodiment Construction

[0040] 2A-2C show the manufacturing process of the color filter substrate in a preferred embodiment of the present invention. First, a red color filter 20R is formed on the substrate 21 . The forming method may be to spin coat a photosensitive resin containing red pigment on the substrate 21 . In a preferred embodiment, the substrate 21 is made of plastic, resin, glass and other materials. Then, the color filter 20R is patterned by a photolithography process. Next, as shown in FIG. 2B , a green color filter 20G is formed on the substrate 21 , and its formation method or composition may be similar to that of the red color filter 20R. In FIG. 2C, a blue color filter 20B is formed on a substrate 21 in the same manner as described above. As shown in FIG. 2C , part of the color filter 20G remains on the 20R to form a color overlapping region 22A. Similarly, part of the color filter 20B remains on the 20G to form a color overlapping region 22B. The order of forming the color fi...

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Abstract

This invention provides one color filter baseboard and its LCD, wherein, the color filter baseboard slices are overlapped as black array overlapped area to define pattern edge area in overlapped area; forming flat layer and conductive layer on above structure to form isolation object at edge of pattern area; due to isolation not in color filter area to reduce open rate.

Description

technical field [0001] The invention relates to a liquid crystal display, in particular to a color filter substrate thereof. Background technique [0002] A general liquid crystal display is mainly composed of three parts: a color filter substrate, an array substrate, and a liquid crystal layer between the two substrates. In earlier common technologies, a ball spacer is usually used to define the distance between two substrates. However, no matter what kind of spraying method is used, the problem of uneven distribution of spacer balls cannot be solved. Therefore, using a patterned photoresist layer as a spacer has gradually become a mainstream technology. [0003] Large-sized color filter substrates usually contain color filters of different colors, and a black matrix between the color filters. For small and medium-sized color filter substrates, color filters of different colors are generally stacked in pairs to serve as a black matrix. As shown in FIGS. 1A and 1B , the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02F1/1335G02F1/1333
Inventor 郑景升胡至仁
Owner AU OPTRONICS CORP
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