Color material dispersion liquid for color filter, color resin composition for color filter, color material for color filter, color filter, liquid crystal display device, and light-emitting display device

Patent metadata

Field	Value
Publication number	US-10538669-B2
Application number	US-201515539047-A
Country	US
Kind code	B2
Filing date	Oct 15, 2015
Priority date	Dec 26, 2014
Publication date	Jan 21, 2020
Grant date	Jan 21, 2020

Abstract

Disclosed is a color material dispersion liquid for a color filter, the dispersion liquid having excellent dispersibility and being capable of forming a high-contrast, high-luminance coating film; a color resin composition for a color filter, the composition having excellent dispersibility and being capable of forming a high-contrast, high-luminance coating film; a color material with excellent dispersibility; a high-contrast and high-luminance color filter; a liquid crystal display device including the color filter, and a light-emitting display device including the color filter. The color material dispersion liquid for a color filter, includes: (A) a color material, (B) a dispersant and (C) a solvent, wherein the color material (A) contains a zirconium lake color material of an acid dye.

First claim

The invention claimed is:

1. A color material dispersion liquid for a color filter, comprising: (A) a color material, (B) a dispersant and (C) a solvent, wherein the color material (A) contains a zirconium lake color material of a rhodamine-based acid dye.

2. The color material dispersion liquid for a color filter according to claim 1 , wherein a laking agent of the zirconium lake color material of the acid dye is a zirconium compound that can form a basic polynuclear condensed ion.

3. The color material dispersion liquid for a color filter according to claim 1 , wherein the laking agent of the zirconium lake color material of the acid dye is at least one of dichlorooxozirconium, chlorohydroxyoxozirconium and hydrates thereof.

4. The color material dispersion liquid for a color filter according to claim 1 , wherein the acid dye in the zirconium lake color material of the acid dye, is the rhodamine-based acid dye.

5. The color material dispersion liquid for a color filter according to claim 2 , wherein the acid dye in the zirconium lake color material of the acid dye, is the rhodamine-based acid dye.

6. The color material dispersion liquid for a color filter according to claim 3 , wherein the acid dye in the zirconium lake color material of the acid dye, is the rhodamine-based acid dye.

7. The color material dispersion liquid for a color filter according to claim 1 , wherein the color material (A) further contains a color material represented by the following general formula (I):

wherein “A” is an “a”-valent organic group in which a carbon atom directly bound to “N” has no π bond, and the organic group is an aliphatic hydrocarbon group having a saturated aliphatic hydrocarbon group at least at a terminal position directly bound to “N”, or an aromatic group having the aliphatic hydrocarbon group, and O, S, N can be contained in a carbon chain of the organic group; B c− is a “c”-valent polyoxometalate anion; each of R i to R v is independently a hydrogen atom, an alkyl group which can have a substituent group, or an aryl group which can have a substituent group; R ii and R iii can be bound to form a ring structure, and/or R iv and R v can be bound to form a ring structure; Ar 1 is a divalent aromatic group which can have a substituent group; a plurality of R i s can be the same or different; a plurality of R ii s can be the same or different; a plurality of R iii s can be the same or different; a plurality of R iv s can be the same or different; a plurality of R v s can be the same or different; a plurality of Ar 1 s can be the same or different;
“a” and “c” are each an integer of 2 or more, and “b” and “d” are each an integer of 1 or more; “e” is 0 or 1, and there is no bond when “e” is 0; and a plurality of “e”s can be the same or different.

8. The color material dispersion liquid for a color filter according to claim 2 , wherein the color material (A) further contains a color material represented by the following general formula (I):

wherein “A” is an “a”-valent organic group in which a carbon atom directly bound to “N” has no π bond, and the organic group is an aliphatic hydrocarbon group having a saturated aliphatic hydrocarbon group at least at a terminal position directly bound to “N”, or an aromatic group having the aliphatic hydrocarbon group, and O, S, N can be contained in a carbon chain of the organic group; B c− is a “c”-valent polyoxometalate anion; each of R i to R v is independently a hydrogen atom, an alkyl group which can have a substituent group, or an aryl group which can have a substituent group; R ii and R iii can be bound to form a ring structure, and/or R iv and R v can be bound to form a ring structure; Ar 1 is a divalent aromatic group which can have a substituent group; a plurality of R i s can be the same or different; a plurality of R ii s can be the same or different; a plurality of R iii s can be the same or different; a plurality of R iv s can be the same or different; a plurality of R v s can be the same or different; a plurality of Ar 1 s can be the same or different;
“a” and “c” are each an integer of 2 or more, and “b” and “d” are each an integer of 1 or more; “e” is 0 or 1, and there is no bond when “e” is 0; and a plurality of “e”s can be the same or different.

9. The color material dispersion liquid for a color filter according to claim 3 , wherein the color material (A) further contains a color material represented by the following general formula (I):

wherein “A” is an “a”-valent organic group in which a carbon atom directly bound to “N” has no π bond, and the organic group is an aliphatic hydrocarbon group having a saturated aliphatic hydrocarbon group at least at a terminal position directly bound to “N”, or an aromatic group having the aliphatic hydrocarbon group, and O, S, N can be contained in a carbon chain of the organic group; B c− is a “c”-valent polyoxometalate anion; each of R i to R v is independently a hydrogen atom, an alkyl group which can have a substituent group, or an aryl group which can have a substituent group; R ii and R iii can be bound to form a ring structure, and/or R iv and R v can be bound to form a ring structure; Ar 1 is a divalent aromatic group which can have a substituent group; a plurality of R i s can be the same or different; a plurality of R ii s can be the same or different; a plurality of R iii s can be the same or different; a plurality of R iv s can be the same or different; a plurality of R v s can be the same or different; a plurality of Ar 1 s can be the same or different;
“a” and “c” are each an integer of 2 or more, and “b” and “d” are each an integer of 1 or more; “e” is 0 or 1, and there is no bond when “e” is 0; and a plurality of “e”s can be the same or different.

10. The color material dispersion liquid for a color filter according to claim 4 , wherein the color material (A) further contains a color material represented by the following general formula (I):

wherein “A” is an “a”-valent organic group in which a carbon atom directly bound to “N” has no π bond, and the organic group is an aliphatic hydrocarbon group having a saturated aliphatic hydrocarbon group at least at a terminal position directly bound to “N”, or an aromatic group having the aliphatic hydrocarbon group, and O, S, N can be contained in a carbon chain of the organic group; B c− is a “c”-valent polyoxometalate anion; each of R i to R v is independently a hydrogen atom, an alkyl group which can have a substituent group, or an aryl group which can have a substituent group; R ii and R iii can be bound to form a ring structure, and/or R iv and R v can be bound to form a ring structure; Ar 1 is a divalent aromatic group which can have a substituent group; a plurality of R i s can be the same or different; a plurality of R ii s can be the same or different; a plurality of R iii s can be the same or different; a plurality of R iv s can be the same or different; a plurality of R v s can be the same or different; a plurality of Ar 1 s can be the same or different;
“a” and “c” are each an integer of 2 or more, and “b” and “d” are each an integer of 1 or more; “e” is 0 or 1, and there is no bond when “e” is 0; and a plurality of “e”s can be the same or different.

11. A color resin composition for

Assignees

• Dainippon Printing Co Ltd

Inventors

• Endo Daisuke
• Ogura Michihiro
• Murata Tomoki
• Murakami Fumiyasu

Classifications

• C09B67/009

  polymeric dispersing agent · CPC title

• G02F1/133516

  Methods for their manufacture, e.g. printing, electro-deposition or photolithography · CPC title

• H05B33/12

  Light sources with substantially two-dimensional [2D] radiating surfaces · CPC title

• G03F7/033

  the binders being polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds, e.g. vinyl polymers · CPC title

• G02F1/1335

  Structural association of cells with optical devices, e.g. polarisers or reflectors · CPC title