| 摘要 |
An optical film, which has been subjected to an orientation treatment, containing a low-molecular weight compound, in which a birefringenceΔn(550 nm) is larger than zero (0) in an orientation direction, and the optical film satisfies the following expressions (1) and (2); and a phase difference plate, a polarizing plate and a liquid crystal display using the same: 0.5<Δn(450 nm)/Δn(550 nm)<1.0; and Expression (1) 1.05<Δn(630 nm)/Δn(550 nm)<1.5. Expression (2) |
