Patent ID: 8796349

Claim:
A photosensitive resin composition for a microlens, comprising: a component (A); a component (B), which is a photosensitizer; and a solvent; wherein: the component (A) is a copolymer comprising: a maleimide structural unit of Formula (1); a repeating structural unit of Formula (2); and at least one repeating structural unit represented by Formula (3) and Formula (5), wherein the copolymer does not comprise a repeating structural unit of Formula (4): where: each R 0 is independently a hydrogen atom or a methyl group; each R 1 is independently a single bond or a C 1 -C 5 alkylene group; R 2 is a thermally cross-linkable monovalent organic group comprising a blocked isocyanate group; X is a C 1 -C 5 alkyl group, a C 5 -C 6 cycloalkyl group, a phenyl group, or a benzyl group; and in the alkyl group, the cycloalkyl group, the phenyl group, and the benzyl group, some or all hydrogen atoms are optionally substituted by a halogen atom, a carboxy group, a hydroxyl group, an amino group, or a nitro group; and Y is a biphenylyl group or a C 1 -C 8 alkoxy group; and in the biphenylyl group, some or all hydrogen atoms are optionally substituted by a C 1 -C 10 alkyl group, a halogen atom, a carboxy group, a hydroxyl group, an amino group, or a nitro group.