Red photoresist combination of color light filter used for LCD device and its application

Abstract

The invention discloses a red optical impedance compositions that comprise red colourant, optically active polymer, optical activity monomer, dissolvent, optical initiating agent, disperser and additive. The optically active polymer is the photoconductor in the red optical impedance compositions that comprises mercaptan-polyene oligomers, it possesses two mechanisms of free radical polymerization and cationic polymerization, so the polymerization speed of optical impedance compositions is quick in exposure, the property of antioxidant polymerization is good and it possesses perfect image repeatability, analysis capability and high penetration. The applications of the red optical impedance compositions are: the red optical impedance compositions is applied to clean base plate via rotating, the red filter with high colour purity is formed via desiccation, exposure to ultraviolet light, development and baking, the colour filter and liquid crystal display are obtained by conventional producing method.

Description

technical field [0001] The invention relates to a pigment photoresist composition of a color filter for a liquid crystal display, in particular to a red photoresist composition of a color filter for a liquid crystal display. Background technique [0002] With the rapid popularization of color liquid crystal display devices, the requirements for display color display are constantly increasing. A general color liquid crystal display device includes a color filter substrate and a thin-film transistor (TFT) substrate facing each other and setting a gap of 1-10 μm, filling the gap with a liquid crystal material, and sealing its periphery with a sealing material such as epoxy resin. . [0003] The structure of the color filter is as follows: sequentially formed on a transparent glass substrate: 1) black matrix to prevent light leakage; 2) red, green and blue primary colors for color display; 3) protective film (this process is optional), its function It is the function of protec...

AI Technical Summary

Problems solved by technology

[0005] The acrylate photocuring system contained in the pigment photoresist used in traditional color filters, because its free radical polymerization mechanism is significantly inhibited by oxygen, often requires an inert protective atmosphere such as nitrogen or an oxygen barrier film during the polymerization process , making the process complicated and adding additional costs and requirements

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