Patent ID: 8497959

Claim:
An optical film, comprising: a layer A formed of a resin composition P 1 containing a resin x 1 having a positive intrinsic birefringence value and a resin y 1 having a negative intrinsic birefringence value; and a layer B formed of a resin composition P 2 containing a resin x 2 having a positive intrinsic birefringence value and a resin y 2 having a negative intrinsic birefringence value, wherein: retardation R 450 of light having a wavelength of 450 nm at an incident angle of 0°, retardation R 550 of light having a wavelength of 550 nm at an incident angle of 0°, and retardation R 650 of light having a wavelength of 650 nm at an incident angle of 0° satisfy a relationship of R 450 <R 550 <R 650 , and retardation Re at an incident angle of 0° and retardation R 40 at an incident angle of 40° satisfy a relationship of 0.92≦R 40 /Re≦1.08.