Blue pigment dispersion composition for color filter and blue pigment dispersion anti-corrosion composition for color filter containing the same

A technology of color filters and blue pigments, applied in optical filters, photosensitive materials for optomechanical equipment, optics, etc., can solve problems such as insufficient, heat resistance, poor balance of brightness, and contrast , achieving high contrast and excellent heat resistance

Active Publication Date: 2013-10-23
SAKATA INX
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] However, these technologies have a problem that the balance of heat resistance, brightness, and contrast is poor, and the heat resistance, high brightness, and high contrast required in recent years are still insufficient.

Method used

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  • Blue pigment dispersion composition for color filter and blue pigment dispersion anti-corrosion composition for color filter containing the same
  • Blue pigment dispersion composition for color filter and blue pigment dispersion anti-corrosion composition for color filter containing the same
  • Blue pigment dispersion composition for color filter and blue pigment dispersion anti-corrosion composition for color filter containing the same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1－7 and comparative example 2－5

[0127]Using 0.2mmΦ zirconia beads, C.I. Pigment Blue 15:6, a phthalocyanine derivative with a sulfonic acid group, a polymer pigment dispersant with a basic group, and an alkali-soluble resin are mixed in the composition of Table 1 using a paint conditioner. It was kneaded with an organic solvent for 6 hours to obtain the blue pigment dispersions for color filters of Examples 1-7 and Comparative Examples 2-5. Then, the following dye solutions were added to form the composition of Table 1, and mixed uniformly using a high-speed mixer to obtain the blue pigment dispersion compositions for color filters of Examples 1-7 and Comparative Examples 2-5. The dye solution is a dye solution in which each dye is dissolved in propylene glycol monomethyl ether acetate so that the concentration of the solid content becomes specific.

Embodiment 8

[0129] Using 0.2mmΦ zirconia beads, C.I. Pigment Blue 15:6, C.I. Solvent Blue 45 as a dye, phthalocyanine derivatives with sulfonic acid groups, and high The molecular pigment dispersant, alkali-soluble resin and organic solvent were kneaded for 6 hours to obtain the blue pigment dispersion composition for color filter of Example 8.

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Abstract

The present invention provides a blue pigment dispersion composition for color filters which are high in contrast ratio and luminance and excellent in heat resistance, and a blue pigment dispersion anti-corrosion composition for color filters containing the same. The blue pigment dispersion composition for color filters contains C.I. pigment blue 15:6, C.I. solvent blue 45, a phthalocyanine derive having sulfo groups, a macromolecule pigment dispersing agent having basic groups, an alkali-soluble resin and an organic solvent, and is characterized in that the content of the C.I. solvent blue 45 is 1-50 mass% in relative to 100 mass of the C.I. pigment blue 15:6.

Description

technical field [0001] The present invention relates to a blue pigment dispersion composition for color filters capable of providing color filters with high contrast and brightness and excellent heat resistance, and to a color filter containing the blue pigment dispersion composition for color filters The filter resist composition is dispersed with a blue pigment. Background technique [0002] In recent years, liquid crystal display devices have become increasingly popular in applications such as televisions, computers, and mobile phones. A color filter used in a liquid crystal display device generally has: a transparent substrate; a coloring layer formed on the transparent substrate and including a three-primary-color coloring pattern of a red pixel portion, a green pixel portion, and a blue pixel portion; and a light shielding portion ( black matrix), which is formed on the transparent substrate in a manner of dividing each coloring pattern. These red pixel parts, green ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09B67/22G03F7/004G03F7/027G02B5/20
CPCC09B67/0084G02B5/20G03F7/004G03F7/0045G03F7/20
Inventor 矢井健二朗林明平井淳一杉江俊辅平光幸
Owner SAKATA INX
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