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

Patent metadata

Field	Value
Publication number	US-11084934-B2
Application number	US-201716313811-A
Country	US
Kind code	B2
Filing date	Jun 23, 2017
Priority date	Jun 28, 2016
Publication date	Aug 10, 2021
Grant date	Aug 10, 2021

Abstract

A color material dispersion liquid including a color material, a dispersant and a solvent, wherein the color material contains a compound which is represented by the following general formula (I) and which contains one or more structures selected from the following structures (i) and (ii); wherein (i) “A” is an aliphatic hydrocarbon group containing two or more alicyclic hydrocarbon groups, containing a saturated aliphatic hydrocarbon group at a terminal position directly bound to “N”, and optionally containing O, S, N in a carbon chain, and (ii) at least one of R2 to R5 is a cycloalkyl group optionally containing a substituent group or an aryl group optionally containing a substituent group.

First claim

The invention claimed is:

1. A color material dispersion liquid comprising
(A) a color material,
(B) a dispersant and
(C) a solvent,
wherein the color material (A) contains a compound which is represented by the following general formula (I)

where “A” is a substituent group represented by the following general formula (IV):

where R 21 is an alkylene group containing 1 to 3 carbon atoms and optionally containing, as a substituent group, an alkyl group containing 1 to 4 carbon atoms or an alkoxy group containing 1 to 4 carbon atoms;
each of R 22 and R 23 is independently an alkyl group containing 1 to 4 carbon atoms or an alkoxy group containing 1 to 4 carbon atoms;
“p” is an integer of from 1 to 3;
each of “q” and “r” is independently an integer of from 0 to 4;
when two or more R 21 s are present, they may be the same or different;
when two or more R 22 s are present, they may be the same or different;
when two or more R 23 s are present, they may be the same or different; and
when two or more “r”s are present, they may be the same or different;
each of R 1 , R 2 , R 3 , R 4 and R 5 is independently a hydrogen atom, an alkyl group optionally containing a substituent group, or an aryl group optionally containing a substituent group;
each of R 6 and R 7 is independently an alkyl group optionally containing a substituent group or an alkoxy group optionally containing a substituent group;
Ar 1 is a divalent aromatic group optionally containing a substituent group;
B c− is a “c”-valent anion;
“a” is 2;
“c” is an integer of 2 or more;
each of “b” and “d” is an integer of 1 or more;
“e” is 0 or 1;
each of “f” and “g” is an integer of from 0 to 4;
each of “f+e” and “g+e” is from 0 to 4;
R 1 s may be the same or different;
R 2 s may be the same or different;
R 3 s may be the same or different;
R 4 s may be the same or different;
R 5 s may be the same or different;
R 6 s may be the same or different;
R 7 s may be the same or different;
Ar 1 s may be the same or different;
“e”s may be the same or different;
“f's may be the same or different; and
“g”s may be the same or different.

2. The color material dispersion liquid according to claim 1 , wherein the compound represented by the general formula (I) further contains a structure represented by the following (ii):
(ii) at least one of R 2 , R 3 , R 4 and R 5 is a cycloalkyl group optionally containing a substituent group or an aryl group optionally containing a substituent group.

3. The color material dispersion liquid according to claim 2 , wherein, for the compound represented by the general formula (I), at least one of R 2 , R 3 , R 4 and R 5 is a substituent group represented by the following formula (II) or (III):
General Formula (II)

where each of R 11 , R 12 and R 13 is independently a hydrogen atom, an alkyl group containing 1 to 4 carbon atoms and optionally containing a substituent group, or an alkoxy group containing 1 to 4 carbon atoms and optionally containing a substituent group,

where each of R 14 , R 15 and R 16 is independently a hydrogen atom, an alkyl group containing 1 to 4 carbon atoms and optionally containing a substituent group, or an alkoxy group containing 1 to 4 carbon atoms and optionally containing a substituent group.

4. The color material dispersion liquid according to claim 1 , wherein, for the compound represented by the general formula (I), the anion represented by B c− is a heteropolyoxometalate containing one or more elements selected from tungsten and molybdenum.

5. The color material dispersion liquid according to claim 1 , wherein the dispersant contains a graft copolymer containing a constitutional unit represented by the following general formula (VII) and at least one selected from a constitutional unit represented by the following general formula (VI) and a constitutional unit represented by the following general formula (VI′), or a block copolymer containing a block moiety that contains a constitutional unit represented by the following general formula (VIII) and a block moiety that contains at least one selected from a constitutional unit represented by the following general formula (VI) and a constitutional unit represented by the following general formula (VI′):

where L 41 is a direct bond or a divalent linking group; R 41 is a hydrogen atom or a methyl group; R 42 is a hydrocarbon group or a monovalent group represented by —[CH(R 46 )—CH(R 47 )—O] x1 —R 48 or —[(CH 2 ) y1 —O] z1 —R 48 ; each of R 46 and R 47 is independently a hydrogen atom or a methyl group; R 48 is a hydrogen atom, a hydrocarbon group, or a monovalent group represented by —CHO, —CH 2 CHO, —CO—CH═CH 2 , —CO—C(CH 3 )=CH 2 , or —CH 2 COOR 49 ; R 49 is a hydrogen atom or an alkyl group having 1 to 5 carbon atoms; the hydrocarbon group optionally contains a substituent group; x1 is an integer of from 1 to 18; y1 is an integer of from 1 to 5; and z1 is an integer of from 1 to 18;
where X + is an organic cation;
where L 42 is a direct bond or a divalent linking group; R 43 is a hydrogen atom or a methyl group; and “Polymer” is a polymer chain containing one or more selected from a constitutional unit represented by the following general formula (IX) and a constitutional unit represented by the following general formula (X); and
where R 44 is a hydrogen atom or a methyl group; R 45 is a hydrocarbon group or a monovalent group represented by —[CH(R 50 )—CH(R 51 )—O] x2 —R 52 , —[(CH 2 ) y2 —O] z2 —R 52 , —[CO—(CH 2 ) y2 —O] z2 —R 52 , —CO— 0 —R 52′ or —O—CO—R 52 ″; each of R 50 and R 51 is independently a hydrogen atom or a methyl group; R 52 is a hydrogen atom, a hydrocarbon group, or a monovalent group represented by —CHO, —CH 2 CHO or —CH 2 COOR 53 ; R 52′ is a hydrocarbon group or a monovalent group represented by —[CH(R 50 )—CH(R 51 )—O] x2′ —R 52 , —[(CO—(CH 2 ) y2 ′—O] z2 ′—R 52 , or —[CO—(CH 2 ) y2′ —O] z2 ,—R 52 ; R 52 is an alkyl group having 1 to 18 carbon atoms; R 53 is a hydrogen atom or an alkyl group having 1 to 5 carbon atoms; the hydrocarbon group optionally contains a substituent group; each of x2 and x2′ is independently an integer of from 1 to 18; each of y2 and y2′ is independently an integer of from 1 to 5; and each of z2 and z2′ is an integer of from 1 to 18:

where R 54 is a hydrogen atom or a methyl group; R 55 is a hydrocarbon group or a monovalent group represented by —[CH(R 56 )—CH(R 57 )—O] x3 —R 58 , —[(CH 2 ) y3 —O] z3 —R 58 , —[CO—(CH 2 ) y3 —O] z3 —R 58 , —CO—O—R 59 , or —O—CO—R 60 ; each of R 56 and R 57 is a hydrogen atom or a methyl group; R 58 is a hydrogen atom, a hydrocarbon group, or a monovalent group represented by —CHO, —CH 2 CHO or —CH 2 COOR 61 ; R 59 is a hydrocarbon group or a monovalent group represented by —[CH(R 56 )—CH(R 57 )—O] x4 —R 58 , —[(CH 2 ) y4 —O] z4 —R 58 or —[CO—(CH 2 ) y4 —O] z4 —R 58 ; R 60 is an alkyl group having 1

Assignees

• Dainippon Printing Co Ltd

Inventors

• Okada Masato
• Amano Hiroko

Classifications

• C08K5/29

  Compounds containing {one or more} carbon-to-nitrogen double bonds · CPC title

• C09B55/007

  containing only carbocyclic rings · CPC title

• G02F1/133514

  Colour filters · CPC title

• C09B11/12 Primary

  without any OH group bound to an aryl nucleus · CPC title

• C09B11/16 Primary

  Preparation from diarylketones or diarylcarbinols {, e.g. benzhydrol} · CPC title