Patent ID: 7759048

Claim:
A microlens-forming photosensitive resin composition comprising: a copolymer; and a photosensitive agent, the copolymer having a repeating unit (A) represented by general formula (1) and a repeating unit (B) represented by general formula (2): (where R 0 s are each independently a hydrogen atom or a methyl group, R 1 is a single-bond or C1-C5 alkylene group, R 2 is a C1-C5 alkyl group, R 3 is a monovalent organic group having thermal crosslinking properties; a is an integer of 1 to 5, b is an integer of 0 to 4, and a+b is not more than 5, a plurality of R 0 s repeated being allowed to differ from each other, a plurality of R 2 s repeated being allowed to differ from each other), the copolymer having a mass-average molecular weight of 10,000 to 30,000, the repeating unit represented by general formula (1) being contained in the copolymer in 20 mol% to 50 mol%, and the repeating unit represented by general formula (2) being contained in the copolymer in 50 mol% to 80 mol%, wherein the copolymer repeating unit (B) includes a repeating unit (B1) whose R 3 is an organic group including a non-alicyclic structure, and a repeating unit (B2) whose R 3 is an organic group including an alicyclic structure, wherein the repeating unit (B2) is contained in the copolymer in 1 mol% to 20 mol%.