Patent ID: 7791696

Claim:
An optically anisotropic film used for a liquid crystal display of a vertical alignment liquid crystal mode comprising a fatty acid cellulose ester film, wherein a retardation value (Rt value) in the thickness direction of the fatty acid cellulose ester film defined by the following formula is from 60 to 300 nm, Rt =[( nx+ny )/2 −nz]×d wherein nx represents the refractive index of the fatty acid cellulose ester film in the direction giving maximum refractive index in the plane of the film, ny represents the refractive index of the fatty acid cellulose ester film in the direction perpendicular to the direction giving maximum refractive index in the plane of the film, nz represents the refractive index of the fatty acid cellulose ester film in the thickness direction and d represents the thickness (in nm) of the fatty acid cellulose ester film, and wherein when the fatty acid cellulose ester film is observed with two polarizing plates being provided on both surfaces of the fatty acid cellulose ester film so as to shield transmission light, the number of luminescent points having a size exceeding 50 μm is zero per 250 mm 2 , and the number of luminescent points having a size of 5 to 50 μm is 200 or less per 250 mm 2 .