Coloring composition, color filter, pattern forming method, solid-state imaging device, and image display device

Patent metadata

Field	Value
Publication number	US-10634997-B2
Application number	US-201816043433-A
Country	US
Kind code	B2
Filing date	Jul 24, 2018
Priority date	Jan 29, 2016
Publication date	Apr 28, 2020
Grant date	Apr 28, 2020

Abstract

Provided is a coloring composition capable of producing a cured film having suppressed color unevenness even in a case where the coloring composition is used after being stored for a long period of time. In addition, provided are a color filter, a pattern forming method, a solid-state imaging device, and an image display device. The coloring composition includes a halogenated zinc phthalocyanine pigment, a maleimide compound, a curable compound other than the maleimide compound, and a solvent, in which the molecular weight of the maleimide compound is 100 to 400, and the content of the maleimide compound is 0.08 to 0.8 parts by mass with respect to 100 parts by mass of the halogenated zinc phthalocyanine pigment.

First claim

What is claimed is:

1. A coloring composition comprising:
a halogenated zinc phthalocyanine pigment;
a maleimide compound represented by Formula (1);
a curable compound other than the maleimide compound; and
a solvent,
wherein the molecular weight of the maleimide compound is 100 to 400, and the content of the maleimide compound is 0.08 to 0.8 parts by mass with respect to 100 parts by mass of the halogenated zinc phthalocyanine pigment,

in Formula (1), R represents an alkyl group or an aryl group.

2. The coloring composition according to claim 1 ,
wherein the maleimide compound is contained in the amount of 0.05% to 0.5% by mass with respect to the total solid content of the coloring composition.

3. The coloring composition according to claim 1 ,
wherein the maleimide compound is contained in the amount of 0.2 to 2.0 parts by mass with respect to 100 parts by mass of the curable compound.

4. The coloring composition according to claim 1 ,
wherein the curable compound includes a compound having an epoxy group.

5. The coloring composition according to claim 4 , further comprising an aromatic amine compound.

6. The coloring composition according to claim 1 ,
wherein the curable compound includes a compound having an ethylenically unsaturated bond.

7. The coloring composition according to claim 1 ,
wherein the curable compound includes a compound having an epoxy group and a compound having an ethylenically unsaturated bond.

8. The coloring composition according to claim 1 , further comprising a coloring agent having an azo group.

9. The coloring composition according to claim 1 , used for a color filter.

10. A color filter using the coloring composition according to claim 1 .

11. A solid-state imaging device comprising the color filter according to claim 10 .

12. An image display device comprising the color filter according to claim 10 .

13. A pattern forming method comprising:
forming a coloring composition layer on a support, using the coloring composition according to claim 1 ; and
forming a pattern on the coloring composition layer by a photolithographic method or a dry etching method.

Assignees

• Fujifilm Corp

Inventors

• Bak Seongmu
• Muro Naotsugu
• Taguchi Yoshinori
• Yoshii Akiko
• Murakami Yousuke

Classifications

• C09B29/335

  free of acid groups · CPC title

• G03F7/0007 Primary

  Filters, e.g. additive colour filters; Components for display devices · CPC title

• G03F7/033

  the binders being polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds, e.g. vinyl polymers · CPC title

• G02B5/223

  containing organic substances, e.g. dyes, inks or pigments · CPC title

• C09D17/003

  containing an organic pigment (process features in the making of dye stuff preparations C09B67/00) · CPC title