Composition, light shielding film, solid-state imaging element, image display device, and method for manufacturing cured film

Patent metadata

Field	Value
Publication number	US-12038688-B2
Application number	US-202217898423-A
Country	US
Kind code	B2
Filing date	Aug 29, 2022
Priority date	Aug 31, 2021
Publication date	Jul 16, 2024
Grant date	Jul 16, 2024

Abstract

A composition with which a cured film having excellent light shielding properties and low reflection properties can be produced is provided; a light shielding film; a solid-state imaging element; an image display device; and a method for manufacturing a cured film. The composition including carbon black, barium sulfate, one or more kinds selected from the group consisting of copper phthalocyanine and a copper phthalocyanine derivative, a resin, and a solvent, in which the solvent includes a solvent A having a boiling point of 180° C. or higher, a solvent B having a boiling point of 140° C. or higher and lower than 180° ° C., and a solvent C having a boiling point of 100° C. or higher and lower than 140° C.

First claim

What is claimed is:

1. A composition comprising:
carbon black;
barium sulfate;
one or more kinds selected from the group consisting of copper phthalocyanine and a copper phthalocyanine derivative;
a resin; and
a solvent,
wherein the solvent includes a solvent A having a boiling point of 180° C. or higher, a solvent B having a boiling point of 140° ° C. or higher and lower than 180° C., and a solvent C having a boiling point of 100° C. or higher and lower than 140° C.; and wherein
a content of the solvent A is 5.0% to 15.0% by mass with respect to a total content of the solvent A, the solvent B, and the solvent C,
a content of the solvent B is 70.0% to 90.0% by mass with respect to the total content of the solvent A, the solvent B, and the solvent C, and
a content of the solvent C is 5.0% to 15.0% by mass with respect to the total content of the solvent A, the solvent B, and the solvent C.

2. The composition according to claim 1 , further comprising:
a compound including an unsaturated double bond; and
a polymerization initiator.

3. The composition according to claim 2 ,
wherein the polymerization initiator includes a compound represented by Formula (1),

in Formula (1), R represents a group represented by Formula (1a),

in Formula (1a), n represents an integer of 1 to 5, m represents an integer of 1 to 6, and * represents a bonding position.

4. The composition according to claim 1 ,
wherein a solubility parameter of the solvent A is 11.0 to 14.0 (cal/cm 3 ) 1/2 .

5. The composition according to claim 1 ,
wherein a solubility parameter of the solvent A is 12.0 to 13.0 (cal/cm 3 ) 1/2 .

6. The composition according to claim 1 ,
wherein the solvent A is one or more kinds selected from the group consisting of γ-butyrolactone, dimethyl sulfoxide, and benzyl alcohol,
the solvent B is one or more kinds selected from the group consisting of propylene glycol monomethyl ether acetate and cyclohexanone, and
the solvent C is one or more kinds selected from the group consisting of butyl acetate and ethyl butyrate.

7. The composition according to claim 1 ,
wherein the copper phthalocyanine derivative is a salt composed of copper phthalocyanine having a sulfonic acid group and dimethyldioctadecylammonium.

8. The composition according to claim 1 ,
wherein a content of the carbon black is 15% to 40% by mass with respect to a total solid content of the composition.

9. The composition according to claim 1 , further comprising:
one or more kinds of metal-containing particles selected from the group consisting of a metal nitride and a metal oxynitride.

10. The composition according to claim 9 ,
wherein the metal-containing particles are a nitride or an oxynitride of one or more kinds of metals selected from the group consisting of titanium, zirconium, vanadium, and niobium.

11. The composition according to claim 1 , further comprising:
a silicone-based surfactant.

12. The composition according to claim 11 ,
wherein the silicone-based surfactant is a surfactant having a phenyl group.

13. The composition according to claim 1 ,
wherein a content of a solid content is 10% to 40% by mass.

14. The composition according to claim 1 ,
wherein a content of water is 1.0% by mass or less with respect to a total mass of the composition.

15. The composition according to claim 1 ,
wherein the composition is a composition for forming a light shielding film.

16. A light shielding film comprising:
a cured film formed from the composition according to claim 1 .

17. A solid-state imaging element comprising:
a cured film formed from the composition according to claim 1 .

18. An image display device comprising:
a cured film formed from the composition according to claim 1 .

19. A method for manufacturing a cured film, comprising:
a composition layer forming step of forming a composition layer consisting of the composition according to claim 2 on a support;
an exposure step of exposing the composition layer by irradiating the composition layer with an actinic ray or a radiation; and
a development step of performing a development treatment on the composition layer after the exposure.

20. A composition comprising:
carbon black;
barium sulfate, wherein the primary particle diameter of the barium sulfate is 0.01 to 0.08 μm;
one or more kinds selected from the group consisting of copper phthalocyanine and a copper phthalocyanine derivative;
a resin; and
a solvent,
wherein the solvent includes a solvent A having a boiling point of 180° C. or higher, a solvent B having a boiling point of 140° ° C. or higher and lower than 180° C., and a solvent C having a boiling point of 100° C. or higher and lower than 140° C.

Assignees

• Fujifilm Corp

Inventors

• Taguchi Yoshinori
• Idei Hiroaki
• ADACHI Misaho
• Abe Teppei

Classifications

• H10F39/12

  Image sensors · CPC title

• C08K5/42

  Sulfonic acids; Derivatives thereof · CPC title

• C08K5/0091

  Complexes with metal-heteroatom-bonds · CPC title

• C08K3/28

  Nitrogen-containing compounds · CPC title

• C08K3/22

  of metals · CPC title