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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., and can solve problems such as difficulty in forming a flat coating film

Active Publication Date: 2011-08-17
JSR CORPORATIOON
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when forming a coating film on a large substrate formed with a resin black matrix, it is difficult to form a flat coating film with conventional colored photosensitive resin compositions because there is a step difference of about 1 μm between the resin black matrix and the substrate.

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
Comparison scheme
Effect test

Embodiment

[0181] Examples are given below to describe the embodiment of the present invention more specifically. However, the present invention is not limited to the following examples.

[0182] Analysis of Dispersants

[0183] Dispersant (B1)

[0184] The dispersant (B1) is a commercially available product of a pigment wetting and dispersing agent, and is a solution of propylene glycol methyl ether acetate / butyl cellosolve=1 / 1 (mass ratio) of a modified acrylic block copolymer (solid content concentration 40 mass %, acid value=0). Through thermal decomposition GC-MS, FT-IR measurement, and proton NMR, it was confirmed that the dispersing agent (B1) contained The A block of the repeating unit of the ester, and the repeating A block copolymer (A / B=38 / 62) composed of B blocks of units. The copolymerization ratio of each repeating unit is methacryloxyethylbenzyldimethylammonium chloride / dimethylaminoethyl methacrylate / methyl methacrylate / butyl methacrylate / methacrylic acid 2 -Ethyl...

Synthetic example 1

[0196] 2 mass parts of 2,2'-azobisisobutyronitrile and 200 mass parts of propylene glycol monomethyl ether acetate are charged into a flask equipped with a cooling tube and a stirrer, followed by 15 mass parts of methacrylic acid, N- 20 parts by mass of phenylmaleimide, 55 parts by mass of benzyl methacrylate, 10 parts by mass of styrene and 2,4-diphenyl-4-methyl-1-pentene (Japan Nitrogen substitution was carried out in 3 parts by mass of Oils and Fats Co., Ltd. (trade name: Novoma-MSD). Thereafter, the mixture was stirred slowly to raise the temperature of the reaction solution to 80° C., and the temperature was maintained for 5 hours to perform polymerization to obtain a resin solution (solid content concentration=33% by mass). The obtained resin had Mw=16000 and Mn=7000. This resin solution is referred to as "resin solution (P1)".

[0197] Preparation of colorant dispersion

[0198] Modulation Example 1

[0199] Use 15 parts by mass of a 70 / 30 (mass ratio) mixture of ...

Embodiment 1

[0222] By adding 100 parts by mass of colorant dispersion (A-1), 3 parts by mass of resin solution (P1) as (C) binder resin (solid content concentration: 33% by mass), as (D) polyfunctional monomer 12 parts by mass of dipentaerythritol hexaacrylate, 3 parts by mass of 2-benzyl-2-dimethylamino-1-(4-morpholinophenyl) butane-1-one as (E) photopolymerization initiator 1 part by mass and 1 part by mass of 4,4'-bis(diethylamino)benzophenone, 0.1 part by mass of Megafac R08-MH (manufactured by DIC Corporation) as a fluorine-based surfactant, and 0.1 part by mass as an adhesion aid 1 mass part of 3-methacryloxypropyltrimethoxysilane, diethylene glycol monoethyl ether acetate as solvent (F1) and propylene glycol monomethyl ether acetate and acetic acid 3 as solvent (F2) -Methoxybutyl ester was mixed to prepare a liquid coloring composition (CR1) with a solid content concentration of 15% by mass. In addition, in all solvents, the content ratio of diethylene glycol monoethyl ether aceta...

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Abstract

The invention provides a coloring composition capable of forming a smooth coating film on an uneven substrate even when a slit die coating method is applied. The coloring composition is characterized by containing constituents (A)-(F): (A) a colorant, (B) a copolymer having at least one selecting from a repeated unit (1) represented by the formula (1) and a repeated unit (2) represented by the formula (2) binder resin, a repeated unit (3) represented by the formula (3) and a repeated unit (4) represented by the formula (4), (C) an adhesive resin (exclusive of the constituent (B) ), (D) a polyfunctional monomer, (E) an optical polymerization initiator, and (F) a solvent containing (F1) a solvent of which the boiling point under 101KPa of barometric pressure, wherein the content of solvent adds up to 1-40 mass% of the entire solvent.

Description

technical field [0001] The present invention relates to a coloring composition, a color filter, and a color liquid crystal display element, and more specifically, to a coloring composition for forming a coloring layer usable in a color filter, and to a coloring composition having coloring formed using the coloring composition. Layer color filter and a color liquid crystal display element provided with the color filter, the color filter is used in a transmissive or reflective color liquid crystal display element, a color image pickup tube element, an organic EL display element, electronic paper, and the like. Background technique [0002] As a method of forming a color filter using a coloring radiation-sensitive composition, it is known to form a coating film of a coloring radiation-sensitive composition on a substrate or a substrate on which a light-shielding layer of a desired pattern has been formed in advance. A method of irradiating a patterned photomask with radiation (...

Claims

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Application Information

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IPC IPC(8): G03F7/004G03F7/033G02B5/20G02F1/1335
CPCG02F1/13G02F1/1303G03F7/004G03F7/0044G02B5/20G02B5/201
Inventor 吉田伸龙恭一郎今村芳树
Owner JSR CORPORATIOON
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