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Coloring resin composition and color filter used for liquid crystal display element

A resin composition and colorant technology, applied in the field of color filters, can solve the problems of increased colorant content, increased colorant content, etc., and achieves suppression of changes over time, suppression of voltage holding ratio drop, and small viscosity change. Effect

Inactive Publication Date: 2008-01-16
FUJIFILM CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] However, the problems related to the above-mentioned voltage retention ratio (VHR) are increasing as the particle size of the colorant becomes smaller and its surface area becomes larger, and the content of the colorant in each pixel of the color filter becomes higher. easy to happen
[0008] In recent years, the use of LCD in the TV field is becoming popular. In TV applications, the requirements for further improvement of contrast and color purity are higher than those of previous recorders. However, the current miniaturization of colorant particle size, colorant The increase in the content rate is an inevitable problem

Method used

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  • Coloring resin composition and color filter used for liquid crystal display element
  • Coloring resin composition and color filter used for liquid crystal display element
  • Coloring resin composition and color filter used for liquid crystal display element

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1～4、 comparative example 1～3

[0192] (1) Synthesis of resin

[0193] (Synthesis of Alkali-Soluble Resin R-1)

[0194] The components in the following composition were added to the reaction vessel, and 564 parts of propylene glycol monomethyl ether acetate and 18 parts of azobisisobutyronitrile were added therein to make them dissolve uniformly. Next, the solution was polymerized at 100° C. for 5 hours to prepare a polymer solution of the alkali-soluble resin R-1 containing carboxyl and sulfonic acid groups in the molecule. The polymer solution had a solid content of 40.2% and a weight average molecular weight of 12,000.

[0195] composition:

[0196] ・Benzyl methacrylate …300 parts

[0197] ・Methacrylic acid …29 parts

[0198] 2-acrylamide-2-methylpropanesulfonic acid (the above compound D-16 (Q 2 =H))...47 parts

[0199]

[0200] The components in the following composition were added to the reaction vessel, and 942 parts of propylene glycol monomethyl ether acetate and 24 parts of azobisisobutyron...

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Abstract

The present invention relates to a coloring resin composition wherein it includes a colorant and an alkali soluble resin, the main particle diameter of the colorant is under 200 nm and the alkali soluble resin is provided with a sulfonic group and at least one group selected from the carboxyl and phosphate group.

Description

technical field [0001] The present invention relates to a colored resin composition and a color filter for a liquid crystal display element, and more specifically, to a colored resin composition suitable for forming a colored image constituting a color filter for a liquid crystal display element and the like, and a liquid crystal display element produced therefrom The color filter used. Background technique [0002] A color filter constituting a liquid crystal display element (LCD) is coated on a substrate with a photosensitive colored resin composition containing pigments and the like, dried, and then exposed to the dried coating film in a desired pattern and developed. Process, to form a pixel pattern on the substrate to produce. [0003] A lot of research has been done on photosensitive coloring compositions in the past, and it is known that they contain COOH groups, PO 3 h 2 base or -SO 3 The composition of copolymers with acidic groups such as H groups and pigments;...

Claims

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Application Information

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IPC IPC(8): G02B5/20G02F1/1335
CPCC08F230/02C08K7/02C08L31/00C08L43/02C08L81/00G02B5/20G03F7/004G03F7/032
Inventor 团诚之冲田务
Owner FUJIFILM CORP