Dye containing curable composition, color filter and method for producing the same

1. A dye-containing curable composition comprising at least an alkali-soluble resin, a dye, a photosensitive compound, and a cross-linking agent,

wherein the photosensitive compound is a photopolymerization initiator; and

wherein the dye is an azaporphyrin compound represented by the following formula (1):

wherein R 1 and R 2 each independently represents a hydrogen atom or a substituted or unsubstituted alkyl group; rings represented by A 1 , A 2 , A 3 and A 4 each independently represents a ring structure represented by the following formula (A) or formula (B); at least one of A 1 , A 2 , A 3 and A 4 is a ring structure represented by the following formula (B); and n represents an integer from 1 to 4:

wherein at least one of R 1 and R 2 in formula (1) is a substituent represented by the following formula (2):

wherein R 3 and R 4 each independently represents a hydrogen atom, an alkyl group containing an oxygen atom in the form of an ether bond, a carbonyl bond or an ester bond, an alkylcarbonyl group or an alkoxycarbonyl group; and

wherein at least one of R 3 and R 4 in formula (2) is an alkyl group with a carbon number of 1 to 12 containing 1 to 4 oxygen atoms in the form of ether bonds, carbonyl bonds or ester bonds, an alkylcarbonyl group with a carbon number of 2 to 12, or an alkoxycarbonyl group with a carbon number of 2 to 12.

2. The dye-containing curable composition according to claim 1 , wherein A 1 , A 2 , A 3 and A 4 in formula (1) have substituents other than —SO 2 NR 1 R 2 .

3. The dye-containing curable composition according to claim 2 , wherein the substituent other than —SO 2 NR 1 R 2 is an alkyl group, an alkoxy group, a halogen atom or a nitro group.

4. The dye-containing curable composition according to claim 1 , wherein at least two and not more than three of A 1 , A 2 , A 3 and A 4 are ring structures represented by the formula (B).

5. The dye-containing curable composition according to claim 1 , wherein at least one of R 3 and R 4 in formula (2) is an alkyl group with a carbon number of 1 to 12 containing 1 to 4 oxygen atoms in the form of ether bonds.

6. A dye-containing curable composition comprising at least an alkali-soluble resin, a dye, a photosensitive compound, and a cross-linking agent,

wherein the photosensitive compound is a photopolymerization initiator; and

wherein the dye is an azaporphyrin compound represented by the following formula (1):

wherein R 1 and R 2 each independently represents a hydrogen atom or a substituted or unsubstituted alkyl group; rings represented by A 1 , A 2 , A 3 and A 4 each independently represents a ring structure represented by the following formula (A) or formula (B); at least one and not more than three of A 1 , A 2 , A 3 and A 4 is a ring structure represented by the following formula (B); and n represents an integer from 1 to 4:

wherein at least one of R 1 and R 2 in formula (1) is a substituent represented by the following formula (2):

wherein R 3 and R 4 each independently represents a hydrogen atom, an unsubstituted alkyl group, an alkyl group containing an oxygen atom in the form of an ether bond, a carbonyl bond or an ester bond, an alkylcarbonyl group or an alkoxycarbonyl group; and

wherein at least one of R 3 and R 4 in formula (2) is an alkyl group with a carbon number of 1 to 12 containing 1 to 4 oxygen atoms in the form of ether bonds, carbonyl bonds or ester bonds, an alkylcarbonyl group with a carbon number of 2 to 12, or an alkoxycarbonyl group with a carbon number of 2 to 12.

7. The dye-containing curable composition according to claim 6 , wherein A 1 , A 2 , A 3 and A 4 in formula (1) have substituents other than —SO 2 NR 1 R 2 .

8. The dye-containing curable composition according to claim 7 , wherein the substituent other than —SO 2 NR 1 R 2 is an alkyl group, an alkoxy group, a halogen atom or a nitro group.

9. The dye-containing curable composition according to claim 6 , wherein at least two and not more than three of A 1 , A 2 , A 3 and A 4 are ring structures represented by the formula (B).

10. The dye-containing curable composition according to claim 6 , wherein at least one of R 3 and R 4 in formula (2) is an alkyl group with a carbon number of 1 to 12 containing 1 to 4 oxygen atoms in the form of ether bonds.