| abstract |
The optical film of the present invention contains a (meth)acrylic copolymer and rubber particles having a glass transition temperature of 0°C or less. The (meth)acrylic copolymer is a structural unit derived from a monomer A having a negative photoelastic modulus of the homopolymer, and a structural unit derived from a monomer B having a positive photoelastic modulus of the homopolymer and not having an alicyclic structure. And, the homopolymer has a positive photoelastic modulus, has a structural unit derived from monomer C having an alicyclic structure, and does not have a ring structure in the main chain. The photoelastic modulus of the optical film is -2.0 × 10 -12 to 2.0 × 10 -12 Pa -1 . |