Optical compensation films based on fluoropolymers

An optical compensation film composition comprising a positive birefringent polymer film and a substrate, wherein the polymer film is a positive C-plate and has a positive birefringence greater than 0.005 throughout the wavelength range of 400 nm<λ<800 nm, the film having been cast from a polymer solution comprising a solvent and a polymer having a moiety of

• wherein R1, R2, and R3 are each independently hydrogen atoms, alkyl groups, substituted alkyl groups, or halogens, wherein at least one of R1, R2, and R3 is a fluorine atom, and wherein R is hydrogen or a substituent on the styrenic ring, wherein birefringence (Δn) is defined by Δn=nz−(nx+ny)/2, wherein nx and ny represent in-plane refractive indices and nz represents the thickness-direction refractive index.