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Coloring composition, color filter and color liquid crystal display element

A technology of coloring composition and colorant, which is applied in the direction of optical components, instruments, optical filters, etc., can solve the problems of pigment micronization, etc., and achieve the effect of excellent alkali developability and excellent storage stability

Active Publication Date: 2016-01-06
JSR CORPORATIOON
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, in the field of color filters used in liquid crystal display devices and solid-state imaging devices, the pigments used tend to be more and more finely divided in response to the demand for higher brightness and higher contrast.

Method used

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  • Coloring composition, color filter and color liquid crystal display element
  • Coloring composition, color filter and color liquid crystal display element
  • Coloring composition, color filter and color liquid crystal display element

Examples

Experimental program
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Effect test

Embodiment

[0185] Hereinafter, an Example is given and the embodiment of this invention is demonstrated more concretely. However, the present invention is not limited to the following examples.

[0186]

Synthetic example 1

[0188] In a flask equipped with a stirring bar, 0.6 g of methoxypolyethylene glycol monomethacrylate (PME-200 manufactured by NOF Corporation) (hereinafter referred to as "PME-200"), n-butyl methacrylate (hereinafter referred to as "nBMA") 12.9 g, methyl methacrylate (hereinafter referred to as "MMA") 10.5 g, 2,2'-azobisisobutyronitrile (hereinafter referred to as "AIBN") 323 mg, and pyrazole - 833 mg of cyano(dimethyl)methyl 1-dithiocarboxylate (pilazo-1-dithiocarboxylate) was dissolved in 30 mL of toluene, and nitrogen gas was bubbled for 30 minutes. Thereafter, the reaction solution was stirred slowly to raise the temperature of the reaction solution to 57° C., and the temperature was maintained for 34 hours to perform living radical polymerization.

[0189] Next, 211 mg of AIBN and 4.1 g of dimethylaminoethyl methacrylate (hereinafter referred to as "DAMA") were dissolved in 20 mL of toluene, nitrogen replacement was performed for 30 minutes, and the nitrogen replacement s...

Synthetic example 2

[0191] In a flask equipped with a stirring bar, 1.4 g of PME-200, 10.6 g of nBMA, 2.8 g of 2-ethylhexyl methacrylate (hereinafter referred to as "EHMA"), 7.0 g of MMA, 295 mg of AIBN and 726 mg of pyrazole-1-dithiocarboxylate cyano(dimethyl)methyl ester were dissolved in 30 mL of toluene and nitrogen sparging was performed for 30 minutes. Thereafter, the reaction solution was stirred slowly to raise the temperature of the reaction solution to 60° C., and the temperature was maintained for 24 hours to perform living radical polymerization.

[0192] Next, 352 mg of AIBN and 6.2 g of DAMA were dissolved in 20 mL of toluene, nitrogen replacement was performed for 30 minutes, the nitrogen replacement solution was added to the reaction solution, and living radical polymerization was performed at 60° C. for 24 hours. Thereafter, the solvent was substituted with propylene glycol monomethyl ether acetate by concentration under reduced pressure so that the non-volatile content was 40% b...

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Abstract

The invention relates to a coloring composition, a color filter and a color liquid crystal display element. The coloring composition for the color filter is excellent in colority characteristic, alkali developability and storage stability. The coloring composition is characterized by comprising (A) a colorant containing a pigment; (B) a block copolymer containing a block A and a block B. The amine value of the block copolymer is 50 mg KOG / g to 80 mg KOG / g. The block A contains a repeated unit derived from an ethylenically unsaturated monomer with the mass percentages more than 60%. The block B contains a repeated unit derived from an alkylene glycol chain having ethylenically unsaturated monomer; (C) a solvent.

Description

technical field [0001] The present invention relates to a coloring composition, a color filter and a color liquid crystal display element. Background technique [0002] When producing a color filter using a colored radiation-sensitive composition, a method is known in which a pigment-dispersed colored radiation-sensitive composition is coated on a substrate and dried, and then the dried coating film is irradiated with radiation in a desired pattern shape. (hereinafter referred to as "exposure") and developed to obtain pixels of each color (Patent Documents 1 to 2). Moreover, the method of forming a black matrix using the photopolymerizable composition which disperse|distributed carbon black is also known (patent document 3). Furthermore, there is also known a method of obtaining pixels of each color by an inkjet method using a pigment-dispersed colored resin composition (Patent Document 4). [0003] However, in the field of color filters used in liquid crystal display elem...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G03F7/004G03F7/033G02B5/20G02F1/1335
CPCG02B5/20G02B5/201G02F1/13G02F1/1303G03F7/0045G03F7/0047
Inventor 成濑秀则高见朋宏柳政完
Owner JSR CORPORATIOON
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