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

A color material wherein the color material is a metal lake color material of a rhodamine-based acid dye, 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 each of R1 and R3 is independently a hydrogen atom, an alkyl group, an aryl group or a heteroaryl group, each of R2 and R4 is independently an aryl group or a heteroaryl group;
• R1 and R2 can be bound to form a ring structure, and/or R3 and R4 can be bound to form ring structure;
• R1 and a carbon atom at the 5-position of the xanthene ring, R2 and a carbon atom at the 7-position of the xanthene ring, R3 and a carbon atom at the 4-position of the xanthene ring, or R4 and a carbon atom at the 2-position of the xanthene ring can be bound to form a ring structure;
• the hydrogen atom in the aryl or heteroaryl group can be substituted with an alkyl group having 1 to 5 carbon atoms, a halogen atom, an acidic group or a salt thereof, a hydroxyl group, an alkoxy group, a nitrile group, a carbamoyl group or a carboxylic acid ester 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 each of R1 and R3 is independently a hydrogen atom, an alkyl group, an aryl group or a heteroaryl group, each of R2 and R4 is independently an aryl group or a heteroaryl group;
• R1 and R2 can be bound to form a ring structure, and/or R3 and R4 can be bound to form ring structure;
• R1 and a carbon atom at the 5-position of the xanthene ring, R2 and a carbon atom at the 7-position of the xanthene ring, R3 and a carbon atom at the 4-position of the xanthene ring, or R4 and a carbon atom at the 2-position of the xanthene ring can be bound to form a ring structure;
• the hydrogen atom in the aryl or heteroaryl group can be substituted with an alkyl group having 1 to 5 carbon atoms, a halogen atom, an acidic group or a salt thereof, a hydroxyl group, an alkoxy group, a nitrile group, a carbamoyl group or a carboxylic acid ester 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, and
• a laking agent is a polyaluminum chloride represented by the following general formula
• 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).

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 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 each of R1 and R3 is independently a hydrogen atom, an alkyl group, an aryl group or a heteroaryl group, each of R2 and R4 is independently an aryl group or a heteroaryl group;
• R1 and R2 can be bound to form a ring structure, and/or R3 and R4 can be bound to form ring structure;
• R1 and a carbon atom at the 5-position of the xanthene ring, R2 and a carbon atom at the 7-position of the xanthene ring, R3 and a carbon atom at the 4-position of the xanthene ring, or R4 and a carbon atom at the 2-position of the xanthene ring can be bound to form a ring structure;
• the hydrogen atom in the aryl or heteroaryl group can be substituted with an alkyl group having 1 to 5 carbon atoms, a halogen atom, an acidic group or a salt thereof, a hydroxyl group, an alkoxy group, a nitrile group, a carbamoyl group or a carboxylic acid ester 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, 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).