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Color film substrate and manufacturing method thereof and display device

A technology of color film substrate and manufacturing method, which is applied in nonlinear optics, instruments, optics, etc., can solve the problems of uneven PI diffusion, increase the thickness of flat layers, and increase costs, so as to improve the uniformity of diffusion, save costs, reduce The effect of small angular difference

Active Publication Date: 2015-04-29
BOE TECH GRP CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This process has very high requirements on the flatness of the substrate surface. If the angle difference of the color filter substrate is too large, if the flat layer 5 is too thin, even after the flat layer 5 is flattened, it is still easy to cause missing coating and PI coating when coating PI. Uneven diffusion and other defects, thus increasing the thickness of the flat layer and increasing the cost

Method used

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  • Color film substrate and manufacturing method thereof and display device
  • Color film substrate and manufacturing method thereof and display device
  • Color film substrate and manufacturing method thereof and display device

Examples

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Embodiment Construction

[0038] The structure and principle of the present invention will be described in detail below in conjunction with the accompanying drawings, and the examples given are only used to explain the present invention, not to limit the protection scope of the present invention.

[0039] Such as figure 2 As shown, a color filter substrate includes a transparent substrate 1, a black matrix unit 3 and a colored resin layer 4 arranged on the transparent substrate 1, and the black matrix unit 3 includes:

[0040] The first sub-black matrix 31 as the basis of the color resin layer 4; and the first sub-black matrix 31 located on the first sub-black matrix 31 and filled between the color resin layers 4 after the color resin layer 4 is formed Two sub-black matrix 32;

[0041] At least a part of the first sub-black matrix 31 is covered by the color resin layer 4 formed after the first sub-black matrix 31, and the thickness of the first sub-black matrix 31 is the same as that of the second su...

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Abstract

An embodiment of the present invention relates to a color filter substrate, comprising: a transparent substrate, a black matrix unit being arranged on the transparent substrate, and color resin coatings. The black matrix unit may comprises first sub black matrices, being configured to be a forming foundation of the color resin coatings; and second sub black matrices, being configured to be on the first sub black matrices, and be filled between the color resin coatings after the color resin coatings have been formed. At least a portion of the first sub black matrices are covered by the color resin coatings formed after the first sub black matrices are formed. And a sum of a thickness of the first sub black matrix and a thickness of the second sub black matrix is not less than a minimum thickness value satisfying a shading requirement.

Description

technical field [0001] The invention relates to the technical field of liquid crystal display, in particular to a color filter substrate, a manufacturing method thereof, and a display device. Background technique [0002] The color filter substrate is an essential part of liquid crystal display. The traditional color filter substrate usually consists of a transparent substrate 1, a black matrix (Black Matrix, BM) unit 3, a color resin layer 4, a flat layer (Over Coating, OC) 5 and a columnar spacer Object (Post Spacer, PS) 6 composition (such as figure 1 shown). There is an angular difference in the overlapping part of the colored resin layer 4 and the BM unit 3 (the area of ​​the angular difference is figure 1 The area circled in ) requires flattening layer 5 for flattening, and the thickness of BM unit 3 is proportional to its OD value (optical density value). If the OD value of BM unit 3 is too small, there is a risk of light leakage, and if BM unit 3 If it is too thic...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02F1/1335G02F1/1333G02F1/1339G02F1/1337
CPCG02F1/133512G02F1/133516
Inventor 黄常刚王耸万冀豫
Owner BOE TECH GRP CO LTD
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