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

A technology for coloring compositions and color filters, which can be applied to optical components, instruments, filters, etc., can solve problems such as pigment particleization, and achieve the effect of excellent storage stability

Active Publication Date: 2015-08-26
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 for color filter, color filter, and color liquid crystal display element
  • Coloring composition for color filter, color filter, and color liquid crystal display element
  • Coloring composition for color filter, color filter, and color liquid crystal display element

Examples

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Effect test

Embodiment

[0197] Examples are given below to further specifically describe the embodiment of the present invention. However, the present invention is not limited to the following examples.

[0198]

Synthetic example 1

[0200] In a flask equipped with a stirring bar, 1.4 g of methacrylic acid (hereinafter referred to as "MA") and 5.6 g of methoxypolyethylene glycol monomethacrylate (PME-200, manufactured by NOF Corporation) were mixed. (hereinafter referred to as "PME-200"), 5.0 g of n-butyl methacrylate (hereinafter referred to as "nBMA"), 5.0 g of 2-ethylhexyl methacrylate (hereinafter referred to as "EHMA"), 1.7g of benzyl methacrylate (hereinafter referred to as "BzMA"), 7.8g of methyl methacrylate (hereinafter referred to as "MMA"), 303mg of 2,2'-azobisisobutyronitrile (hereinafter referred to as "AIBN") and 781 mg of pyrazole-1-dithiocarboxylate cyano(dimethyl)methyl ester were dissolved in 30 mL of toluene, and nitrogen bubbles were 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.

[0201] Next, 73 mg of AI...

Synthetic example 2

[0203] In a flask equipped with a stirring bar, 1.4 g of MA, 8.4 g of PME-200, 12.9 g of nBMA, 224 mg of AIBN, and 579 mg of pyrazole-1-dithiocarboxylate cyano(dimethyl)formazol The ester was dissolved in 30 mL of toluene and nitrogen bubbles were carried out 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.

[0204] Next, 277 mg of AIBN and 5.3 g of DAMA were dissolved in 20 mL of toluene, nitrogen substitution was performed for 30 minutes, the resulting solution was added to the above reaction solution, and living radical polymerization was performed at 57° C. for 34 hours. Then, the solvent was replaced with propylene glycol monomethyl ether acetate by concentration under reduced pressure, and the nonvolatile content was adjusted to 40% by mass. Thus, a block copolymer comprising an A block with repeating ...

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Abstract

The invention provides a coloring composition applied in a color filter, a color filter and a colored liquid crystal display element. The coloring composition applied in a color filter has excellent chroma features, development and storing stability. The coloring composition comprises A a coloring agent including pigments, B a segmented copolymer and C a cross-linking agent. The B segmented copolymer comprises a repeating unit 1 illustrated in formula 1, a repeating unit 2 illustrated in formula 2 and a repeating unit 3 having an acidic group, and further comprises A segment having the repeating unit 1, and B segment having the repeating unit 2 and repeating unit 3. In formula 1, R1 represents a hydrogen atom or methyl, Z represents -N+R2R3R4Y-, -NR5R6. or a nitrogen-containing heterocyclic radical with a substituent, and X1 represents divalent connecting groups. In formula 2, R7 represents alkylidene with a carbon atom number ranging from 2 to 4, R8 represents alkyl with carbon atom number ranging from 1 to 6, R9 represents a hydrogen atom or methyl, and n represents an integer ranging from 1 to 150. R2 to R4, R5 and R6 mutually independently represent hydrogen atoms or alkyl with substituents. Y- represents a counterbalance anion.

Description

technical field [0001] The present invention relates to a coloring composition for a color filter, a color filter, and a color liquid crystal display element, and more specifically, relates to a composition for forming a transmissive or reflective color liquid crystal display element, a solid-state imaging element, an organic EL display element, and an electronic paper A coloring composition of a colored layer useful for a color filter used in , etc., a color filter having a colored layer formed using the coloring composition, and a color liquid crystal display element having the color filter. Background technique [0002] When producing a color filter using a colored radiation-sensitive composition, it is known that after coating a pigment-dispersed colored radiation-sensitive composition on a substrate and drying it, the dried coating film is irradiated with radiation in a desired pattern shape (hereinafter referred to as "exposure") and develop to obtain pixels of each co...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G03F7/033G03F7/004C09B67/20C09B67/46G02B5/20G02F1/1335
CPCG02B5/20G02B5/201G02F1/13G02F1/1303G03F7/004G03F7/0045
Inventor 成濑秀则高见朋宏柳政完梶田彻
Owner JSR CORPORATIOON