Color material dispersion liquid for color filters, color material, color filter, liquid crystal display device and organic light-emitting display device

A color material dispersion liquid for color filters, comprising:

• (A) a color material, (B) a dispersant and (C) a solvent, wherein the color material (A) contains (A-1) a color material represented by the following general formula (I) and (A-2) a metal lake color material of a rhodamine-based acid dye, and the rhodamine-based acid dye is represented by the following general formula (III):
• 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;
• Bc− is a “c”-valent polyoxometalate anion;
• each of Ri to Rv is independently a hydrogen atom, an alkyl group which can have a substituent group, or an aryl group which can have a substituent group;
• Rii and Riii can be bound to form a ring structure, and/or Riv and Rv can be bound to form a ring structure;
• Ar1 is a divalent aromatic group which can have a substituent group;
• a plurality of Ris can be the same or different;
• a plurality of Riis can be the same or different;
• a plurality of Riiis can be the same or different;
• a plurality of Rivs can be the same or different;
• a plurality of Rvs can be the same or different;
• a plurality of Ar1s 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;
• wherein R1, R2, R3 and R4 is independently a hydrogen atom, or a straight- or branched-chain alkyl group which has 1 to 20 carbon atoms and which can have a substituent group;
• the substituent group that the alkyl group can have is a halogen atom or an aryl group, and the aryl group can further have a halogen atom or an acidic group or a salt thereof, as a substituent group;
• R5 is an acidic group or a salt thereof;
• “x” is an integer of 0 to 5;
• and the general formula (III) has at least two acidic groups or salts thereof, and one of the at least two acidic groups or salts thereof forms an intramolecular salt.

A color resin composition for color filters, comprising:

• (A) a color material, (B) a dispersant, (C) a solvent and (D) a binder component, wherein the color material (A) contains (A-1) a color material represented by the following general formula (I) and (A-2) a metal lake color material of a rhodamine-based acid dye, and the rhodamine-based acid dye is represented by the following general formula (III):
• 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;
• Bc− is a “c”-valent polyoxometalate anion;
• each of Ri to Rv is independently a hydrogen atom, an alkyl group which can have a substituent group, or an aryl group which can have a substituent group;
• Rii and Riii can be bound to form a ring structure, and/or Riv and Rv can be bound to form a ring structure;
• Ar1 is a divalent aromatic group which can have a substituent group;
• a plurality of Ris can be the same or different;
• a plurality of Riis can be the same or different;
• a plurality of Riiis can be the same or different;
• a plurality of Riis can be the same or different;
• a plurality of Rvs can be the same or different;
• a plurality of Ar1s 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;
• wherein R1, R2, R3 and R4 is independently a hydrogen atom, or a straight- or branched-chain alkyl group which has 1 to 20 carbon atoms and which can have a substituent group;
• the substituent group that the alkyl group can have is a halogen atom or an aryl group, and the aryl group can further have a halogen atom or an acidic group or a salt thereof, as a substituent group;
• R5 is an acidic group or a salt thereof;
• “x” is an integer of 0 to 5;
• and the general formula (III) has at least two acidic groups or salts thereof, and one of the at least two acidic groups or salts thereof forms an intramolecular salt.

A color material dispersion liquid for color filters, comprising:

• (B) a dispersant, (C) a solvent and a metal lake color material of a rhodamine-based acid dye, and the rhodamine-based acid dye is represented by the following general formula (III) and a laking agent is a polyaluminum chloride represented by the following general formula (II):
• Aln(OH)mCl(3n-m) General Formula (II):
• wherein “n” is an integer of 2 to 20, and “m” is an integer of (n/2) to (3n−1);
• wherein R1, R2, R3 and R4 is independently a hydrogen atom, or a straight- or branched-chain alkyl group which has 1 to 20 carbon atoms and which can have a substituent group;
• the substituent group that the alkyl group can have is a halogen atom or an aryl group, and the aryl group can further have a halogen atom or an acidic group or a salt thereof, as a substituent group;
• R5 is an acidic group or a salt thereof;
• “x” is an integer of 0 to 5;
• and the general formula (III) has at least two acidic groups or salts thereof, and one of the at least two acidic groups or salts thereof forms an intramolecular salt.

A color filter comprising at least a transparent substrate and color layers disposed on the substrate, wherein at least one of the color layers contains (A-1) a color material represented by the following general formula (I) and (A-2) a metal lake color material of a rhodamine-based acid dye, and the rhodamine-based acid dye is represented by the following general formula (III):

• 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;
• Bc− is a “c”-valent polyoxometalate anion;
• each of Ri to Rv is independently a hydrogen atom, an alkyl group which can have a substituent group, or an aryl group which can have a substituent group;
• Rii and Riii can be bound to form a ring structure, and/or Riv and Rv can be bound to form a ring structure;
• Ar1 is a divalent aromatic group which can have a substituent group;
• a plurality of Ris can be the same or different;
• a plurality of Riis can be the same or different;
• a plurality of Riiis can be the same or different;
• a plurality of Rivs can be the same or different;
• a plurality of Rvs can be the same or different;
• a plurality of Ar1s 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;
• wherein R1, R2, R3 and R4 is independently a hydrogen atom, or a straight- or branched-chain alkyl group which has 1 to 20 carbon atoms and which can have a substituent group;
• the substituent group that the alkyl group can have is a halogen atom or an aryl group, and the aryl group can further have a halogen atom or an acidic group or a salt thereof, as a substituent group;
• R5 is an acidic group or a salt thereof;
• “x” is an integer of 0 to 5;
• and the general formula (III) has at least two acidic groups or salts thereof, and one of the at least two acidic groups or salts thereof forms an intramolecular salt.