Curable composition, method for producing cured film, color filter, light-shielding film, solid-state imaging element, and image display device

Patent metadata

Field	Value
Publication number	US-10795260-B2
Application number	US-201815906778-A
Country	US
Kind code	B2
Filing date	Feb 27, 2018
Priority date	Aug 31, 2015
Publication date	Oct 6, 2020
Grant date	Oct 6, 2020

Abstract

An object of the present invention is to provide a curable composition satisfying both of excellent low reflectivity and excellent developability, a method for producing a cured film, an infrared color filter provided with a light-shielding film, and a solid-state imaging device.
The curable composition of the present invention includes a fluorine-containing polymer including a repeating unit represented by Formula (A) and a repeating unit represented by Formula (B), a polymerizable compound, and a coloring agent.

In Formula (A), R 1 represents a hydrogen atom or an alkyl group, and L 1 represents a divalent chained linking group having 3 or more carbon atoms in total, which may include an ester bond.
In Formula (B), R 2 represents a hydrogen atom or an alkyl group, L 2 represents a single bond or a divalent linking group, and R f represents a monovalent organic group including an fluorine atom.

First claim

What is claimed is:

1. A curable composition comprising:
a fluorine-containing polymer including a repeating unit represented by Formula (A) and a repeating unit represented by Formula (B);
a polymerizable compound; and
a coloring agent,

in Formula (A), R 1 represents a hydrogen atom or an alkyl group, and L 1 represents a linear or branched alkylene group having 3 or more carbon atoms in total, which includes an ester bond, and
in Formula (B), R 2 represents a hydrogen atom or an alkyl group, L 2 represents a single bond or a divalent linking group, and R f represents a monovalent organic group including an fluorine atom.

2. The curable composition according to claim 1 ,
wherein the acid value of the fluorine-containing polymer is 70 to 150 mgKOH/g.

3. The curable composition according to claim 2 ,
wherein the content of the fluorine-containing polymer is 1% to 20% by mass with respect to the total solid content of the curable composition.

4. The curable composition according to claim 1 ,
wherein the content of the fluorine-containing polymer is 1% to 20% by mass with respect to the total solid content of the curable composition.

5. The curable composition according to claim 1 ,
wherein in the fluorine-containing polymer, R f is a monovalent organic group having 1 to 3 carbon atoms in total, substituted with a fluorine atom.

6. The curable composition according to claim 1 ,
wherein the weight-average molecular weight of the fluorine-containing polymer is 5,000 to 50,000.

7. The curable composition according to claim 1 ,
wherein the coloring agent includes a black pigment.

8. A method for producing a cured film, comprising:
a step of forming a composition layer of the curable composition according to claim 1 on a substrate by spin coating;
a step of exposing the composition layer by irradiation with actinic rays or radiation; and
a step of subjecting the exposed composition layer to alkali development to form a cured film.

9. A color filter formed by curing the curable composition according to claim 1 .

10. A light-shielding film formed by curing the curable composition according to claim 1 .

11. A solid-state imaging element having a cured film formed by curing the curable composition according to claim 1 .

12. An image display device having a cured film formed by curing the curable composition according to claim 1 .

13. The curable composition according to claim 1 ,
wherein in the fluorine-containing polymer, L 2 is a single bond.

14. The curable composition according to claim 1 ,
wherein the fluorine-containing polymer includes a repeating unit having a polymerizable group on a side chain.

15. A curable composition comprising:
a fluorine-containing polymer including a repeating unit represented by Formula (A), a repeating unit represented by Formula (B), and a repeating unit having a polymerizable group on a side chain; and
a coloring agent,

in Formula (A), R 1 represents a hydrogen atom or an alkyl group, and L 1 represents a linear or branched alkylene group having 3 or more carbon atoms in total, which includes an ester bond, and
in Formula (B), R 2 represents a hydrogen atom or an alkyl group, L 2 represents a single bond or a divalent linking group, and R f represents a monovalent organic group including an fluorine atom.

16. The curable composition according to claim 15 , comprising:
a fluorine-containing polymer including a repeating unit represented by Formula (A), a repeating unit represented by Formula (B), and a repeating unit represented by Formula (C); and
a coloring agent,

in Formula (A), R 1 represents a hydrogen atom or an alkyl group, and L 1 represents a linear or branched alkylene group having 3 or more carbon atoms in total, which includes an ester bond,
in Formula (B), R 2 represents a hydrogen atom or an alkyl group, L 2 represents a single bond or divalent linking group, and R f represents a monovalent organic group including an fluorine atom, and
in Formula (C), R 3 represents a hydrogen atom or an alkyl group, L 3 represents a single bond or divalent linking group, and R 4 represents a hydrogen atom or an alkyl group.

17. The curable composition according to claim 16 ,
wherein the acid value of the fluorine-containing polymer is 70 to 150 mgKOH/g.

18. The curable composition according to claim 16 ,
wherein the content of the fluorine-containing polymer is 1% to 20% by mass with respect to the total solid content of the curable composition.

19. The curable composition according to claim 16 ,
wherein in the fluorine-containing polymer, R f is a monovalent organic group having 1 to 3 carbon atoms in total, substituted with a fluorine atom.

20. The curable composition according to claim 15 ,
wherein the acid value of the fluorine-containing polymer is 70 to 150 mgKOH/g.

21. The curable composition according to claim 15 ,
wherein the content of the fluorine-containing polymer is 1% to 20% by mass with respect to the total solid content of the curable composition.

22. The curable composition according to claim 15 ,
wherein in the fluorine-containing polymer, R f is a monovalent organic group having 1 to 3 carbon atoms in total, substituted with a fluorine atom.

23. The curable composition according to claim 15 ,
wherein in the fluorine-containing polymer, L 2 is a single bond.

Assignees

• Fujifilm Corp

Inventors

• OGAWA Michihiro
• Takakuwa Hideki
• Tomeba Hisamitsu

Classifications

• H10F99/00

  Subject matter not provided for in other groups of this subclass · CPC title

• H10F39/8057

  Optical shielding · CPC title

• H10F39/1515

  Optical shielding · CPC title

• H10F39/806

  Optical elements or arrangements associated with the image sensors · CPC title

• H10F39/182

  Colour image sensors · CPC title