Radiation-sensitive colored composition, color filter, method for producing a color pattern, method for producing color filter, solid-state imaging device, and liquid crystal display apparatus

1. A radiation-sensitive colored composition comprising:

(A) a dye polymer containing a structural unit having a dye structure polymerized using a chain-transfer agent having a LogP value of 5 or less; and

(B) a solvent.

2. The radiation-sensitive colored composition according to claim 1 , wherein the chain-transfer agent having a LogP value of 5 or less is an alkyl mercaptan.

3. The radiation-sensitive colored composition according to claim 1 , wherein the chain-transfer agent having a LogP value of 5 or less is an alkyl mercaptan having 10 or less carbon atoms.

4. The radiation-sensitive colored composition according to claim 1 , wherein the chain-transfer agent having a LogP value of 5 or less is an alkyl mercaptan having at least one structure selected from an ester structure, and an ether structure in the molecule.

5. The radiation-sensitive colored composition according to claim 1 , wherein the dye structure is derived from a dipyrromethane metal complex compound or a tautomer of the dipyrromethane metal complex compound obtained from a dipyrromethane compound represented by formula (III) and a metal or metal compound

[in formula (III), R 1 , R 2 , R 3 , R 4 , R 5 , and R 6 each independently represent a hydrogen atom or a monovalent substituent group, R 7 represents a hydrogen atom, a halogen atom, an alkyl group, an aryl group or a heterocyclic group, R 1 and R 6 are not bonded together to form a ring].

6. The radiation-sensitive colored composition according to claim 1 , further comprising (C) a polymer having a different structure from (A) the dye polymer.

7. The radiation-sensitive colored composition according to claim 6 , wherein (C) the polymer having a different structure from (A) is a pigment dispersant.

8. The radiation-sensitive colored composition according to claim 1 , further comprising (D) a pigment.

9. The radiation-sensitive colored composition according to claim 1 , further comprising (E) a polymerizable compound and (F) a polymerization initiator.

10. A color filter having a color pattern, formed on a substrate using the radiation-sensitive colored composition according to claim 1 .

11. A solid-state imaging device comprising the color filter according to claim 10 .

12. A liquid crystal display apparatus comprising the color filter according to claim 10 .

13. A method for producing a color pattern comprising:

applying the radiation-sensitive colored composition according to claim 1 to a support to form a radiation-sensitive colored layer;

exposing the formed radiation-sensitive colored layer; and

developing the radiation-sensitive colored layer after exposure to remove a non-exposed region.

14. A method for producing a color filter comprising:

applying a radiation-sensitive colored composition according to claim 1 to a substrate to form a radiation-sensitive colored layer;

exposing the formed radiation-sensitive colored layer; and

developing the radiation-sensitive colored layer after exposure to remove a non-exposed region.