| abstract |
An object of the present invention is to provide an optical film having high contrast, no glare and character blur, and good blackness. Furthermore, it is providing the polarizing plate and display apparatus using such an optical film. An optical film having a light diffusing layer on a transparent support, and the transmitted scattered light is emitted in the normal direction of the surface of the film when the transmitted scattered light has an output light intensity I0 in the normal direction of the transparent support. The ratio I (0 °) / I0 of the incident light intensity I (0 °) to I0 is 30% to 100%, and the emitted light intensity I (at the position inclined by 6 ° from the normal direction of the film surface to the longitudinal direction of the film. 6 °) to I0 ratio I (6 °) / I0 is 0.70% to 5.0%, and the emitted light intensity I at a position inclined 30 ° from the normal direction of the film surface to the longitudinal direction of the film. The ratio I (30 °) / I0 of (30 °) to I0 is 0.0001 to 0.007%. [Selection figure] None |