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

Patent metadata

Field	Value
Publication number	US-11767431-B2
Application number	US-202117205014-A
Country	US
Kind code	B2
Filing date	Mar 18, 2021
Priority date	Jan 8, 2016
Publication date	Sep 26, 2023
Grant date	Sep 26, 2023

Abstract

Provided are a coloring composition capable of producing a film having excellent light fastness, and the like, a method for producing a coloring composition, a color filter, a pattern forming method, a solid-state imaging device, and an image display device. The coloring composition includes a coated pigment in which at least a portion of a surface of a yellow pigment is coated with a resin, a halogenated phthalocyanine pigment, a dispersant having an acid value of 40 mgKOH/g or more, and a curable compound.

First claim

What is claimed is:

1. A coloring composition comprising:
a coated pigment in which at least a portion of a surface of a yellow pigment is coated with a resin;
a halogenated phthalocyanine pigment;
a dispersant having an acid value of 40 mgKOH/g or more;
a curable compound; and
a photopolymerization initiator which contains an oxime compound,
wherein the yellow pigment is an azomethine-based yellow pigment which is C. I. Pigment Yellow 129,
a surface of the halogenated phthalocyanine pigment is not coated with a resin,
the coloring composition contains the halogenated phthalocyanine pigment in the amount of 100 to 600 parts by mass with respect to 100 parts by mass of the coated pigment,
the acid value of the resin coating the surface of the yellow pigment is 40 to 200 mgKOH/g,
the difference between the acid value of the resin coating the surface of the yellow pigment and the acid value of the dispersant is 100 mgKOH/g or less,
the weight-average molecular weight of the resin coating the surface of the yellow pigment is 5,000 to 40,000, and
the curable compound contains a trifunctional to pentadecafunctional (meth)acrylate compound.

2. The coloring composition according to claim 1 ,
wherein the halogenated phthalocyanine pigment is a halogenated zinc phthalocyanine pigment.

3. The coloring composition according to claim 1 , further comprising a pigment derivative having a basic group.

4. The coloring composition according to claim 3 ,
wherein the basic group is an amino group.

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

6. A solid-state imaging device comprising the color filter according to claim 5 .

7. An image display device comprising the color filter according to claim 5 .

8. 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

• Nakamura Shoichi

Classifications

• C09B67/0013 Primary

  with polymeric coatings · CPC title

• C09B67/009

  polymeric dispersing agent · CPC title

• C09B67/0034

  Mixtures of two or more pigments or dyes of the same type · CPC title

• C09B67/0035

  Mixtures of phthalocyanines · CPC title

• C09B67/0085

  Non common dispersing agents · CPC title