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Color filter substrate

A color filter substrate, color filter technology, applied in the direction of instruments, optical filters, electric solid devices, etc., can solve the problems of low production efficiency, inability to produce color filter substrates more cheaply, etc., to achieve adhesion good effect

Active Publication Date: 2009-06-17
MITSUBISHI GAS CHEM CO INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0012] However, the production efficiency of this method is low, and there is a disadvantage that a color filter substrate having a glass substrate cannot be produced more cheaply.

Method used

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Examples

Experimental program
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Embodiment 1

[0062] 1,2,4,5- 11.2 g (0.05 mol) of cyclohexanetetracarboxylic dianhydride and 37.7 g of N-methyl-2-pyrrolidone as a solvent were dissolved and cooled to 5° C. in an ice-water bath. While maintaining the same temperature, dissolve 7.1g (0.05mol) of 4,4'-diaminobicyclohexylmethane in 40.0g of N-methyl-2-pyrrolidone by dropping it over 30 minutes from the dropping funnel to obtain After the dropwise addition, the ice-water bath was removed and stirred at room temperature for 2 hours. Then, 30.0 g of m-xylene was added as an azeotropic dehydration solvent, the temperature was raised to 170°C, and the temperature was raised to 200°C over 4 hours while distilling off the distillate to complete the reaction. The internal temperature was cooled to 60° C. in air, and the reaction liquid (organic solvent solution of polyimide) was taken out. The weight of the organic solvent solution of this polyimide was 87.9 g, and the total weight of the distillate was 37.7 g. The organic solven...

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Abstract

To provide a color filter substrate having a color filter part formed excellently and directly on a base material plate of a flexible plastic film which is colorless and transparent, and also excellent in heat resistance, non-coloring property, and adhesion to obtain a thin, lightweight, and hard-to-crack panel display device at low cost. Disclosed is the color filter substrate having the color filter part formed on the base material plate made of a film of polyimide having repetiting units shown by a specific formula.

Description

technical field [0001] The present invention relates to a color filter substrate having excellent transparency and heat resistance and having a color filter portion formed on a film substrate made of polyimide, which is used in display devices such as liquid crystal display devices and organic EL display devices. Background technique [0002] Color filter substrates, which are used in flat panel display devices that have become popular in recent years, have red (R), green (G) and cyan (B) colored layers on glass substrates, which are important components for realizing colorization. widely used. [0003] The color filter substrate is composed of a colorless and transparent substrate such as glass, a color filter portion including pixel portions of various colors, and a transparent conductive film provided as necessary. A general method of forming a color filter substrate is as follows. First, the surface of the glass substrate is washed. Next, a black matrix material film ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02F1/1335G02B5/20G09F9/30H01L51/50H05B33/12H05B33/14
CPCC09K19/38G02B5/20C08G73/10C08L79/08H10K50/00
Inventor 木原秀太毛户耕
Owner MITSUBISHI GAS CHEM CO INC