Photosensitive composition, colorant dispersion solution, light filter and light sensor

Patent metadata

Field	Value
Publication number	US-9297927-B2
Application number	US-201314082840-A
Country	US
Kind code	B2
Filing date	Nov 18, 2013
Priority date	Nov 27, 2012
Publication date	Mar 29, 2016
Grant date	Mar 29, 2016

Abstract

A photosensitive composition, suitable for a hardened film capable of sufficiently blocking light in the visible range and sufficiently transmitting light in the near infrared region, is provided. The photosensitive composition contains a colorant, a compound having an ethylenic unsaturated group, a photopolymerization initiator and a solvent. The colorant contains (A1) to (A3);
(A1) a colorant of the following formula (1):

(A2) a blue colorant, a green colorant, or both, and
(A3) a yellow colorant, a red colorant, or both. R 1 and R 2 is a hydrogen atom, a hydroxyl group, a methoxy group or an acetyl group. R 3 and R 4 is a phenylene group or a direct bond. R 5 and R 6 is a direct bond or an alkanediyl group having 1 to 10 carbon atoms, with the proviso that R 3 and R 5 are not simultaneously direct bonds, and R 4 and R 6 are not simultaneously direct bonds.

First claim

What is claimed is:

1. A photosensitive composition, comprising:
colorants;
a compound comprising an ethylenic unsaturated group;
a photopolymerization initiator; and
a solvent,
wherein the colorants comprise:
(A1) a colorant of formula (1) in an amount of 40 to 80 mass % based on the total amount of the colorants;
(A2) a colorant selected from the group consisting of a blue colorant and a green colorant, in an amount of 10 to 40 mass % based on the total amount of the colorants; and
(A3) a colorant selected from the group consisting of a yellow colorant and a red colorant, in an amount of 10 to 40 mass % based on the total amount of the colorants,

wherein the colorant (A1) is different from the colorant (A3);
R 1 and R 2 each independently is a hydrogen atom, a hydroxyl group, a methoxy group or an acetyl group;
R 3 and R 4 each independently is a phenylene group or a direct bond; and
R 5 and R 6 each independently is a direct bond or an alkanediyl group having 1 to 10 carbon atoms, with the proviso that R 3 and R 5 are not simultaneously direct bonds, and R 4 and R 6 are not simultaneously direct bonds, and
wherein the total content of the colorants is from 40 to 80 mass % based on the total amount of the solid content components except the solvent in the photosensitive composition.

2. The photosensitive composition according to claim 1 , wherein the colorant (A2) is a blue colorant.

3. The photosensitive composition according to claim 2 , wherein the blue colorant is a copper phthalocyanine pigment.

4. The photosensitive composition according to claim 2 , wherein the blue colorant is Pigment Blue 15:6.

5. The photosensitive composition according to claim 1 , wherein the colorant (A3) is a yellow colorant.

6. The photosensitive composition according to claim 5 , wherein the yellow colorant is an isoindoline pigment.

7. The photosensitive composition according to claim 5 , wherein the yellow colorant is Pigment Yellow 139.

8. The photosensitive composition according to claim 1 , wherein the content of the colorants in the solid content of the photosensitive composition is 60 mass % or less.

9. The photosensitive composition according to claim 1 ,
wherein the colorant (A1) is selected from the group consisting of C.I. pigment black 31 and C. I. pigment black 32.

10. The photosensitive composition according to claim 1 , wherein R 5 and R 6 each independently is a methylene group and an ethane-1,2-diyl group.

11. A light filter, obtained from the photosensitive composition of claim 1 ; wherein the light filter comprises a substrate.

12. A light sensor, comprising:
the light filter of claim 11 .

13. A light filter, comprising a hardened material of a photosensitive composition,
wherein the photosensitive composition comprises:
colorants;
a compound comprising an ethylenic unsaturated group;
a photopolymerization initiator; and
a solvent,
wherein the colorants comprise:
(A1) a colorant of formula (1) in an amount of 40 to 80 mass % based on the total amount of the colorants;
(A2) a colorant selected from the group consisting of a blue colorant and a green colorant, in an amount of 10 to 40 mass % based on the total amount of the colorants; and
(A3) a colorant selected from the group consisting of a yellow colorant and a red colorant, in an amount of 10 to 40 mass % based on the total amount of the colorants,

wherein the colorant (A1) is different from the colorant (A3);
R 1 and R 2 each independently is a hydrogen atom, a hydroxyl group, a methoxy group or an acetyl group;
R 3 and R 4 each independently is a phenylene group or a direct bond; and
R 5 and R 6 each independently is a direct bond or an alkanediyl group having 1 to 10 carbon atoms, with the proviso that R 3 and R 5 are not simultaneously direct bonds, and R 4 and R 6 are not simultaneously direct bonds, and
wherein the total content of the colorants is from 40 to 80 mass % based on the total amount of the solid content components except the solvent in the photosensitive composition.

14. A light sensor comprising the light filter according to claim 13 .

Assignees

• Jsr Corp

Inventors

• Suemitsu Yuuki
• Shimada Mibuko
• Murata Yuusuke

Classifications

• G02B1/04 Primary

  made of organic materials, e.g. plastics (G02B1/08 takes precedence) · CPC title

• G02B5/223

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

• C08F222/1006

  of polyhydric alcohols or polyhydric phenols · CPC title

• C08F222/105

  of pentaalcohols · CPC title

• C08F222/106

  Esters of polycondensation macromers · CPC title