| abstract |
PROBLEM TO BE SOLVED: To find a method for producing a film in which the retardation in the thickness direction with respect to the average of the in-plane retardation of a transparent film support can be efficiently controlled to be small, and a liquid crystal layer is formed on the film. Obtaining an unprecedented and high-performance optically anisotropic film by coating and orienting, and providing a liquid crystal display device using the same. SOLUTION: On a fatty acid cellulose ester film support having an acyl group having 2 to 3 carbon atoms, at least one liquid crystal alignment film and at least one liquid crystal layer are provided, and The refractive index nx in the x direction, the refractive index ny in the y direction, and the refractive index nz in the thickness direction in the plane of the cellulose ester film support have a relationship represented by the formula (I). Optically anisotropic film. (Nx + ny) / 2-nz> 0 (I) |