| 摘要 |
PROBLEM TO BE SOLVED: To provide an optical film that prevents the occurrence of display unevenness.SOLUTION: An optical film comprises: a phase layer A (A layer) that satisfies the following relational expression: nz>nx≥ny, where, nx means an in-plane refractive index of an in-plane slow axis orientation; ny means an in-plane refractive index of an orientation orthogonal to the in-plane slow axis orientation; and nz means a thickness-direction refractive index; and a retardation layer B (B layer) in which in-plane retardation Re and thickness-direction retardation Rth satisfy the following relational expression: 0 nm≤Re≤20 nm, and 50 nm≤Rth≤300 nm; and has the total film thickness of 5 to 40 μm. |
