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Coloring composition for colorful filter and colorful filter

A color filter and coloring composition technology, applied in the direction of optical filters, optics, optical components, etc., can solve the problems of insufficient adaptability, increased viscosity of the coloring composition, and deterioration of filter wettability, etc. Achieve excellent color reproducibility, high contrast, and excellent fluidity

Active Publication Date: 2007-08-01
TOYO INK SC HOLD CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Increased viscosity and poor fluidity of such coloring compositions cause problems in manufacturing operations and various problems in product value.
For example, poor fluidity will worsen the wettability of the filter and cause the filtration speed to slow down
[0007] In order to disperse organic pigments having a phthalocyanine structure, Patent Documents 1 to 2 propose a method of mixing pigment derivatives with an organic pigment as a matrix and an acidic group or a basic group as a substituent as a dispersant, but In color filter applications requiring a high degree of pigment dispersion, not sufficient adaptability

Method used

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  • Coloring composition for colorful filter and colorful filter
  • Coloring composition for colorful filter and colorful filter
  • Coloring composition for colorful filter and colorful filter

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0107] Stir and mix the mixture of the following composition evenly, use zirconia beads with a diameter of 0.5 mm, disperse it with a sand mill for 10 hours, and filter it with a filter of 1.0 μm to prepare a copper phthalocyanine system for blue resist materials. Pigment dispersions.

[0108] ε-type copper phthalocyanine blue pigment (C.I. Pigment Blue 15:6) 10.0 parts

[0109] (BASF "Heliogen Buruichi L-6700F")

[0110] Copper phthalocyanine derivative composition 1.0 parts

[0111] (The weight ratio of phthalocyanine derivative (D1):phthalocyanine derivative (D2)=85:15)

[0112] Phosphate-based pigment dispersant 2.0 parts

[0113] ("BYK111" manufactured by Bitsukuchemi Co., Ltd.)

[0114] Acrylic resin solution 47.0 parts

[0115] Methoxypropyl acetate 40.0 parts

[0116] Next, after stirring and mixing the mixture of the following composition uniformly, the alkali-developing type blue resist material was obtained.

[0117] Copper phthalocyanine pigment dispersion f...

Embodiment 2

[0126] Except that the copper phthalocyanine derivative composition was changed to the weight ratio of phthalocyanine derivative (D1): phthalocyanine derivative (D2) = 65: 35, the same operation was carried out as in Example 1 to obtain an alkali-developable blue resist. etch material.

Embodiment 3

[0128] Except that the copper phthalocyanine derivative composition was changed to the weight ratio of phthalocyanine derivative (D1):phthalocyanine derivative (D2) = 60:45, the same operation was carried out as in Example 1 to obtain an alkali-developable blue resist. etch material.

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Abstract

The invention provides a colored composition for color filter, capable of forming color filter with high contrast, good dispensability, fluidity and dispersion stability, when forming filter with little foreign matter thereinto. The composition contains pigment carriers composed of transparent resin, forebody and their mixtures, pigments, phthalocyanine derivatives D1 having substituents shown in one general formula (1) and phthalocyanine derivatives D2 having substituents shown in two general formulas (1) relative to the phthalocyanine residue, the weight ratio D1:D2 is 85:15 to 56:44, in the general formula (1), X denotes 2+ linking group selected from CO, SO2, CH2 and CH2NHCOCH2, Y denotes direct connection or NH(CH2)n, R1, R2 each independently denotes hydrogen atom, alkyl having substituents with C1-6, R1 and R2 can also combine with each other to form heterocycle which can further contain nitrogen atom or oxygen atom, n denotes 1-6 integer.

Description

technical field [0001] The present invention relates to a coloring composition for a color filter and a color filter using the composition. Background technique [0002] A color filter is to arrange two or more fine band-shaped filter segments of different hues in parallel or crosswise on the surface of a transparent substrate such as glass, or to arrange fine filter segments in a certain arrangement. And constituted. The filter segments are several μm to several hundreds of μm, and each hue is neatly arranged on the substrate in a predetermined arrangement. [0003] Generally, in a color liquid crystal display device, a transparent electrode for driving liquid crystal is formed on a color filter by vapor deposition or sputtering, and an alignment film for aligning the liquid crystal in a certain direction is formed thereon. In order to give full play to the performance of these transparent electrodes and alignment films, the transparent electrodes and alignment films are ...

Claims

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Application Information

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IPC IPC(8): G02B5/20G02B5/23C09D201/00C09D17/00
Inventor 原口一道西野诚儿玉幸生上久保敬
Owner TOYO INK SC HOLD CO LTD
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