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

Patent metadata

Field	Value
Publication number	US-11390752-B2
Application number	US-202016821057-A
Country	US
Kind code	B2
Filing date	Mar 17, 2020
Priority date	Sep 20, 2017
Publication date	Jul 19, 2022
Grant date	Jul 19, 2022

Abstract

Provided is a coloring composition capable of forming a cured film having desired spectral characteristics even for thin-film. In addition, provided are a cured film, a pattern forming method, a color filter, a solid-state imaging element, and an image display device. The coloring composition contains: a pigment A having a structure in which an aromatic ring group into which a group with an oxygen atom, a sulfur atom, or a nitrogen atom bonded to an aromatic ring is introduced is bonded to a diketopyrrolopyrrole skeleton; and a compound having a curable group. A content of the pigment A in a total solid content of the coloring composition is 40% by mass or more.

First claim

What is claimed is:

1. A coloring composition comprising:
a resin which includes a repeating unit having an acid group, the acid value of the resin being 30 to 200 mgKOH/g,
a pigment A having a structure in which an aromatic ring group in which a group bonded with an oxygen atom, a sulfur atom, or a nitrogen atom is introduced to an aromatic ring is bonded to a diketopyrrolopyrrole skeleton; and
a compound having a curable group,
wherein the content of the pigment A in the total solids content of the coloring composition is 40% by mass or more,
the coloring composition comprises a pigment derivative which is a compound having a structure in which a part of a chromophore which is a benzimidazolone-based skeleton or a diketopyrrolopyrrole-based skeleton is substituted with an acid group, a basic group, or a phthalimidemethyl group,
the content of the pigment derivative is 1 to 30 parts by mass with respect to 100 parts by mass of the pigment A, and
the pigment A is a compound represented by Formula (1),

in the formula, R 11 and R 13 each independently represents a substituent,
R 12 and R 14 each independently represents a hydrogen atom, an alkyl group, an aryl group, or a heteroaryl group,
n11 and n13 each independently represents an integer of 0 to 4,
X 12 and X 14 each independently represents an oxygen atom, a sulfur atom, or a nitrogen atom,
in a case where X 12 represents an oxygen atom or a sulfur atom, m12 represents 1, and in a case where X 12 represents a nitrogen atom, m12 represents 2, and
in a case where X 14 represents an oxygen atom or a sulfur atom, m14 represents 1, and in a case where X 14 represents a nitrogen atom, m14 represents 2.

2. The coloring composition according to claim 1 , wherein the pigment A is a compound represented by Formula (2),

in the formula, R 11 and R 13 each independently represents a substituent,
R 12 and R 14 each independently represents a hydrogen atom, an alkyl group, an aryl group, or a heteroaryl group,
n11 and n13 each independently represents an integer of 0 to 4,
X 12 and X 14 each independently represents an oxygen atom, a sulfur atom, or a nitrogen atom,
in a case where X 12 represents an oxygen atom or a sulfur atom, m12 represents 1, and in a case where X 12 represents a nitrogen atom, m12 represents 2, and
in a case where X 14 represents an oxygen atom or a sulfur atom, m14 represents 1, and in a case where X 14 represents a nitrogen atom, m14 represents 2.

3. The coloring composition according to claim 1 ,
wherein the compound having a curable group includes at least one compound selected from a compound having an ethylenically unsaturated group and a compound having an epoxy group.

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

5. The coloring composition according to claim 1 ,
wherein the compound having a curable group includes a compound having an ethylenically unsaturated group and further includes a photopolymerization initiator.

6. The coloring composition according to claim 1 , further comprising:
a monomer having an ethylenically unsaturated group; and
a resin,
wherein a ratio M1/B1 of the mass M1 of the monomer having an ethylenically unsaturated group contained in the coloring composition to the mass B1 of the resin contained in the coloring composition is 0.2 or less.

7. A cured film obtained from the coloring composition according to claim 1 .

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 onto the coloring composition layer by a photolithography method or a dry etching method.

9. A color filter comprising the cured film according to claim 7 .

10. A solid-state imaging element comprising the cured film according to claim 7 .

11. An image display device comprising the cured film according to claim 7 .

12. The coloring composition according to claim 1 , wherein
the coloring composition comprises a graft resin including a repeating unit having a poly(meth)acrylate structure as a main chain and having a graft chain of a polyester structure in a side chain.

13. The coloring composition according to claim 1 , wherein
the coloring composition comprises a yellow colorant, and
the content of the yellow colorant is 1 to 40 parts by mass with respect to 100 parts by mass of the pigment A.

14. The coloring composition according to claim 1 , wherein
the coloring composition comprises a yellow colorant, and
the content of the yellow colorant is 1 to 40 parts by mass with respect to 100 parts by mass of the pigment A.

15. The coloring composition according to claim 1 , wherein
the coloring composition comprises a yellow colorant,
the content of the yellow colorant is 1 to 40 parts by mass with respect to 100 parts by mass of the pigment A, and
the total content of the pigment A and the yellow colorant is 55% to 90% by mass with respect to the total solids content of the coloring composition.

Assignees

• Fujifilm Corp

Inventors

• Mizuno Akio
• Oohashi Hidekazu
• Mori Masahiro
• Koizumi Hiromu

Classifications

• H10F39/12

  Image sensors · CPC title

• G03F7/0007

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

• G02F1/133514

  Colour filters · CPC title

• G03F7/20

  Exposure; Apparatus therefor (photographic printing apparatus for making copies G03B27/00) · CPC title

• C09B57/004 Primary

  Diketopyrrolopyrrole dyes · CPC title