Pigment dispersion composition for black matrix and pigment dispersion resist composition for black matrix containing the same

A pigment dispersant and pigment dispersing technology, which is applied in photosensitive materials used in optomechanical equipment, photoplate making process of patterned surface, optics, etc., can solve the problem that the unexposed part cannot be completely removed, the adhesion is reduced, and the development is confirmed to be terminated It achieves the effect of excellent optical density, low reflectivity, and excellent dispersion stability due to problems such as timing difficulties
CN109725488APending Publication Date: 2019-05-07SAKATA INX
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
SAKATA INX
Publication Date
2019-05-07

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Abstract

The invention provides a pigment dispersion composition for a black matrix, with high dispersion stability, and a pigment dispersion resist composition for a black matrix containing the same, with preferable shading performance and low reflectivity. Specifically the provided pigment dispersion composition for a black matrix contains carbon black, precipitated barium sulfate, a basic group-containing pigment dispersant, a pigment derivative, an alkali-soluble resin, and a solvent, and is characterized by a content ratio of carbon black to precipitated barium sulfate (carbon black / precipitated barium sulfate) is 95 / 5 to 65 / 35.
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Description

technical field

[0001] The present invention relates to a pigment dispersion composition for black matrix used for forming a black matrix of a liquid crystal panel, and a pigment dispersion resist composition for black matrix containing the pigment dispersion composition for black matrix. Background technique

[0002] The liquid crystal method is often used in image display devices such as computers, color TVs, mobile phones, tablet devices, and game terminals. A liquid crystal image display device displays images on a screen by using color filters forming pixels of each color and liquid crystals that function as shutters.

[0003] Next, in the color filter, a black matrix (black matrix) having stripe-like or mosaic-like openings is usually formed on the surface of a transparent substrate such as glass or plastic plate, and then red, green, blue, etc. are sequentially formed on the openings. 3+ pixels with different colors.

[0004] Here, the black matrix suppresses color ...

Claims

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