Optical films based on styrenic fluoropolymer and acrylic copolymer

An optical compensation film comprising:

• (a) poly(α,β,β-trifluorostyrene);
• and
• (b) an acrylic copolymer prepared by polymerization of monomers comprising:
• (i) methyl methacrylate (MMA) in an amount of 70 wt. % to 95 wt. %, based on the total weight of (i) and (ii);
• and
• (ii) one or more ethylenically unsaturated monomers other than MMA selected from the group comprising methyl acrylate, ethyl acrylate, n-butyl acrylate, n-hexyl acrylate, n-hexyl methacrylate, 2-methoxyethyl acrylate, 2-ethylhexyl acrylate, 2-ethylhexyl methacrylate, and combinations thereof, in an amount of 5 wt. % to 30 wt. %, based on the total weight of (i) and (ii),
• wherein said acrylic copolymer has a glass transition temperature (Tg) of 65° C. to 98° C., and wherein said optical compensation film has a haze less than 2.25%, an elongation at break of 5% to 15%, and a Young's modulus of 2 GPa to 4 GPa, measured at a film thickness of 15 μm to 50 μm.