Photosensitive resin composition for color filter and uses thereof

A photosensitive resin composition for a color filter comprising:

• a pigment (A);
• an alkali-soluble resin (B);
• a cationic polymeric compound (C);
• a compound (D) having an ethylenically unsaturated group;
• a photoinitiator (E);
• and
• an organic solvent (F);
• wherein:
• the alkali-soluble resin (B) comprises a first alkali-soluble resin (B-1) having a hindered-amine structure represented by Formula (I):
• in Formula (I):
• X1 represents a hydrogen atom, a C1-C18 linear alkyl group, branched alkyl group or cycloalkyl group, a C6-C20 aromatic group, a C7-C12 aromatic alkyl group, an acyl group, an oxygen free radical or —OX4;
• X2 and X3 independently represent a methyl group, an ethyl group, a phenyl group or X2 and X3 together represent a C4-C12 aliphatic ring;
• X4 represents a hydrogen atom, a C1-C18 linear alkyl group, branched alkyl group or cycloalkyl group, a C6-C20 aromatic group, or a C7-C12 aromatic alkyl group;
• and
• * represents a covalent bond;
• and
• the alkali-soluble resin (B) comprises a second alkali-soluble resin (B-2), and the second alkali-soluble resin (B-2) is obtained by polymerizing a mixture comprising an epoxy compound (b-2-1) containing at least two epoxy groups, and a compound (b-2-2) containing at least one carboxylic acid group and at least one ethylenically unsaturated group;
• based on 100 parts by weight of the total used amount of the alkali-soluble resin (B), the used amount of the first alkali-soluble resin (B-1) is from 30 parts by weight to 70 parts by weight, and the used amount of the second alkali-soluble resin (B-2) is from 30 parts by weight to 70 parts by weight.