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Color optical filter and manufacturing method thereof

A technology of color filter and manufacturing method, applied in optics, opto-mechanical equipment, nonlinear optics, etc., to achieve the effect of increasing absolute height, improving surface pressure resistance, and reducing process flow and production cost

Inactive Publication Date: 2017-10-10
NANJING CEC PANDA FPD TECH CO LTD +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In view of the above problems, the present invention proposes a color filter and a manufacturing method thereof, which can stably control the uniformity of the auxiliary spacer, without increasing the cost of the mask plate, and without generating new problems affecting the picture quality of the liquid crystal panel, thereby It can reduce product quality problems caused by poor uniformity; and under the premise of ensuring that the height difference between the main spacer and the auxiliary spacer is the set value, the absolute height of the auxiliary spacer is increased to improve the elasticity and Surface pressure resistance of LCD panels

Method used

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  • Color optical filter and manufacturing method thereof
  • Color optical filter and manufacturing method thereof
  • Color optical filter and manufacturing method thereof

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Experimental program
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Effect test

Embodiment 1

[0033] Such as Figure 2-5 As shown, a color filter includes a base substrate 1, a black matrix layer 2, a color filter layer 3 arranged between the black matrix layers, and a layer covering the black matrix layer and the color filter layer The flat layer 4 also includes a main spacer 5 and an auxiliary spacer 6;

[0034] The main spacer 5 is arranged on the flat layer 4; the flat layer 4 is provided with an accommodation hole, and the auxiliary spacer 6 is arranged in the accommodation hole, and the depth of the accommodation hole is It is equal to the height difference Δ between the main spacer 5 and the auxiliary spacer 6 above the top surface of the flat layer, so that the actual heights of the main spacer 5 and the auxiliary spacer 6 are the same.

[0035] In the embodiment of the present invention, the accommodating hole runs through the flat layer 4, the bottom surface of the auxiliary spacer 6 is attached to the surface of the black matrix, and the outer wall of the a...

Embodiment 2

[0039] The difference between the present embodiment and the first embodiment is that the accommodating hole is groove-shaped, and the bottom surface and the outer sidewall of the auxiliary spacer 6 are attached to the accommodating hole.

[0040] It and part are all identical with embodiment one.

Embodiment 3

[0042] Such as Figure 2-5 Shown, a kind of manufacturing method of color filter comprises the following steps:

[0043] S1: Form a black matrix layer on the base substrate, see figure 2 ;

[0044] The step S1 specifically includes: coating the photoresist for manufacturing the black matrix layer on the glass substrate, placing the mask plate on the photoresist, and the mask plate is provided with a light hole at a position corresponding to the required formation of the black matrix , the shape of the light hole is adapted to the black matrix, and then the front side is exposed for photoreaction and development to form a black matrix.

[0045] S2: Form a color filter layer on the black matrix layer, see for details image 3 ;

[0046] The step S2 is specifically: coating the photoresist for manufacturing the color filter layer on the black matrix layer, placing the mask on the photoresist, and placing the mask on the sub-sections corresponding to each color block area of ...

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Abstract

The invention discloses a color optical filter and a manufacturing method thereof. The color optical filter comprises black matrix layers, color optical filter layers arranged between the black matrix layers, and a flat layer covering the black matrix layers and the color optical filter layers; the color optical filter further comprises a main spacer and an auxiliary spacer; the main spacer is arranged on the flat layer; an accommodating hole is formed in the flat layer, the auxiliary spacer is arranged in the accommodating hole, and the depth of the accommodating hole is equal to the height difference of the parts of the main spacer and the auxiliary spacer above the top face of the flat layer. Through the adoption of the color optical filter and the manufacturing method thereof, the uniformity of the auxiliary spacer can be stably controlled, no mask cost is added, the problem of influencing the image quality of a liquid crystal panel cannot caused, and therefore the product quality problem caused by poor uniformity can be solved, on the promises of ensuring the height different of the main spacer and the auxiliary spacer as a set value, the absolute height of the auxiliary spacer is increased, and the elasticity of the spacers and the surface pressure resistance capability of the liquid crystal panel are improved.

Description

technical field [0001] The invention belongs to the technical field of liquid crystal display, and in particular relates to a color filter and a manufacturing method thereof. Background technique [0002] The liquid crystal panel in the TFT-LCD includes a color filter substrate and an array substrate, and liquid crystals are filled between the color filter substrate and the array substrate, wherein the spacers made on the color filter substrate mainly play a supporting role. At present, the color filter substrate usually adopts a double spacer design, including a higher main spacer and a lower auxiliary spacer. There is a height difference between the main spacer and the auxiliary spacer. Only the main spacer acts as a support. When the liquid crystal panel is subjected to external pressure, the auxiliary spacer and the main spacer together play a supporting role, so the height difference between the main spacer and the auxiliary spacer can allow the liquid crystal to The p...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02F1/1339G02F1/1335G03F7/00
CPCG02F1/133509G02F1/133516G02F1/13394G03F7/0007G02F1/13396
Inventor 金潘许家诚祝宏勋王志军
Owner NANJING CEC PANDA FPD TECH CO LTD