Light shading resin composition for color filter and color filter

A technology of resin composition and color filter, which is applied in the direction of photosensitive materials, optical filters, optics, etc. used in optomechanical equipment, can solve the problems of dispersibility of soluble pigments, insufficient storage stability, etc., and achieve coating properties and good storage stability

Active Publication Date: 2007-10-03
NIPPON STEEL CHEMICALL &MATERIAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the combination of these solvents, the dispersibility of the black pigment with a solid content of 45% or more and the solubility of acrylic photosensitive resins with a solid content of 8% or more

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0054] In 39.3 parts of black pigment dispersion (20.2% by weight of black pigment, 2.5% by weight of cationic polymer dispersant, 7.5% by weight of alkali-developable photosensitive resin with bisphenol stilbene type epoxy diacrylate structure, propylene glycol mono 69.8% by weight of methyl ether acetate), 56.5% by weight of an alkali-developable photosensitive resin having a bisphenol-stilbene type epoxy diacrylate structure, propylene glycol monomethyl ether acetate solution (Xinri Trade name manufactured by Iron Chemical Co., Ltd.: V-259ME, solvent part (contained in the first solvent) 2.8 parts, pentaerythritol tetraacrylate 1.7 parts, oxime ester photopolymerization initiator 0.6 part, triazine photopolymerization initiator 0.3 part part, 0.1 part of acetophenone photopolymerization initiator, 4.9 parts of propylene glycol monomethyl ether acetate (first solvent: PGMEA), 16.8 parts of propylene glycol diacetate (second solvent: PGDA), 3-ethoxy 16.8 parts of ethyl propio...

Embodiment 2 to 15

[0058] The amount of the black pigment dispersion of embodiment 1, the first solvent, the second solvent, the third solvent, the fourth solvent and the type and amount of the surfactant are changed as shown in Table 1 to make black resist ink and model filter color piece. The flatness of any black resist ink in a liquid-saving coating device, the drying prevention of the discharge part of the liquid-saving coating device, the drying property of the coated substrate, the solubility of solid content, and the storage stability are all good. High-quality mock-up filters are available.

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PUM

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Abstract

The invention relates to a light shading resin composition for color filter, the characteristic of which is that it contains 80~90 wt% of solvent and solid content; relative to solid content, it contains 8~35 wt% of acrylic acid series photosensitive resin, 45~65 wt% of black pigment, silicon surfactant or fluorin surfactant and initiator for photopolymerization whose HLB value is below 8. The viscosity of the resin composition is between 1.0 and 10.0mPa.s; relative to all solvents, it contains 30~50 wt% of the first solvent having a acetoxyl group in molecule, 0~25 wt% of propylene-glycol diacetate as the second solvent, 30~50 wt% of the third solvent having structure of 3-ethoxy propionic acid in molecule, 10~30 wt% of alicyclic compound having a carbonyl as the fourth solvent. Consequently, it has excellent evenness when coating, dryness of coating substrate and solid components' solubility.

Description

technical field [0001] The present invention relates to a light-shielding resin composition for a color filter, and a color filter formed using the same, the light-shielding resin composition for a color filter being produced by a liquid-saving slit coater A coating device such as a slit coater can form a coating film and is used for color filters such as liquid crystal displays. Background technique [0002] Color filters are widely used for colorization purposes such as liquid crystal displays, and generally red, green, and blue primary color pixels (pixels) are arranged in a mosaic manner for use. In order to ensure the contrast of the displayed image, a method of forming a light-shielding grid (hereinafter referred to as a black matrix) is used between the pixels of the three primary colors of red, green, and blue. The method for producing the black matrix of such a filter is known as a pigment dispersion method and a vapor deposition method, but a light-shielding resin...

Claims

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Application Information

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IPC IPC(8): C08L33/02G02B1/10G02B5/20G02B5/22G02F1/1335G03F7/004
CPCG03F7/0007G03F7/0045G03F7/0048
Inventor 村田泰毅藤野健一
Owner NIPPON STEEL CHEMICALL &MATERIAL CO LTD
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