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Radiation-ray sensitive composition for colour-filtering piece, colour filtering piece and colour liquid crystal display device

A color filter and composition technology, applied in the field of color liquid crystal display devices, can solve the problems of insufficient contrast, storage stability, and reduced developability.

Active Publication Date: 2005-10-05
JSR CORPORATIOON
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there is a problem that in many cases, sufficient contrast or storage stability cannot be achieved even with the use of a dispersant, and the developability significantly decreases as the amount of the dispersant increases.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0224] With (A) pigment: C.I pigment red 254 / C.I pigment red 177=50 / 50 (weight ratio) mixture 100 weight parts; (B) dispersant: Disperbyk-2000 (solid content concentration 46.2 weight %) 40 weight parts (conversion (C) alkali-soluble resin: methacrylic acid / 2-hydroxyethyl methacrylate / benzyl methacrylate / polymethyl methacrylate macromonomer copolymer ( Copolymerization weight ratio=15 / 15 / 60 / 10, Mw=20,000, Mn=10,000 parts by weight; (D) multifunctional monomer: 100 parts by weight of dipentaerythritol hexaacrylate; (E) photopolymerization initiator: 2- Benzyl-2-dimethylamino-1-(4-morpholinophenyl)-butanone-1, 40 parts by weight; and (F) solvent: 500 parts by weight of propylene glycol monomethyl ether acetate and 3-ethyl 670 parts by weight of ethyl oxypropionate and 30 parts by weight of propylene glycol monomethyl ether were mixed to prepare a radiation-sensitive composition.

Embodiment 2

[0226] Replace 40 parts by weight of (B) dispersant Disperbyk-2000 in Example 1, use 30 parts by weight of Disperbyk-2000 (converted into solid content about 13.86 parts by weight) and Disperbyk-165 (ammonia value=15, acid value=0 , solid content concentration 39.6% by weight) 30 parts by weight (converted into solid content is about 11.88 parts by weight), in addition to the same as Example 1, the preparation of radiation-sensitive composition.

Embodiment 3

[0228] (A) pigment: 100 parts by weight of C.I pigment blue; (B) dispersant: 60 parts by weight of Disperbyk-2000 (converted to about 27.72 parts by weight in solid content); (C) alkali-soluble resin: methacrylic acid / ω- Carboxydicaprolactone monoacrylate / styrene / benzyl methacrylate / glycerol monomethacrylate / N-phenylmaleimide copolymer (copolymer weight ratio = 15 / 10 / 10 / 35 / 10 / 20, Mw=6,000, Mn=3,000) 120 parts by weight; (D) multifunctional monomer: 150 parts by weight of dipentaerythritol hexaacrylate; (E) photopolymerization initiator: 2-methyl (4 -methylthiophenyl)-2-morpholino-1-acetone-1, 60 parts by weight; and (F) solvent: 650 parts by weight of propylene glycol monomethyl ether acetate and 3-methoxybutyl ethyl 800 parts by weight of acid ester and 50 parts by weight of propylene glycol monoethyl ether were mixed to prepare a radiation-sensitive composition.

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PUM

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Abstract

The radiation-sensitive composition for a color filter contains (A) a pigment, (B) a dispersant, (C) an alkali-soluble resin, (D) a polyfunctional monomer, (E) a photopolymerization initiator and (F) solvent. The dispersant (B) essentially comprises an acrylic copolymer obtained by living anion polymerization and having >0 amine value (mgKOH / g) and 0 acid value (mgKOH / g). The use amount (in terms of solid content) of the acrylic copolymer is 3 to 35 parts by weight with respect to 100 parts by weight of the pigment (A).

Description

technical field [0001] The invention relates to a radiation-sensitive composition for a color filter, a color filter and a color liquid crystal display device. More specifically, it relates to a radiation-sensitive composition for color filters useful for the production of color filters used in transmissive or reflective color liquid crystal display devices, color imaging tube elements, etc. A color filter formed from the radiation-sensitive composition and a color liquid crystal display device having the color filter. Background technique [0002] When a color filter is manufactured using a colored radiation-sensitive composition, the following formation methods are known (refer to JP-A No. 2-144502 and JP-A-3-53201). Usually, a color filter is formed on a substrate or in advance. On the substrate of the light-shielding layer with a specific pattern, a coating film of a colored radiation-sensitive composition is formed, and radiation is irradiated (hereinafter referred to ...

Claims

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Application Information

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IPC IPC(8): G03F7/004G02B5/20G02B5/23G02F1/1335
CPCE01C11/04E02B3/16E02D29/16E04B1/68
Inventor 沼田淳小林和博槙平勇伊藤由树子
Owner JSR CORPORATIOON
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