LIGHT DIFFUSING FILM AND METHOD FOR PREPARATION THEREOF

摘要

An light diffusing film of interior diffusion type which contains at least two types of thermoplastic resins having different refractive indexes and has a sea-island structure composed of a sea component of a thermoplastic resin (A) and an island component of a thermoplastic resin (B), characterized in that it further comprises a stretched film comprising a crystalline polymeric compound (C) laminated on the surface of at least one side of said light diffusing film; and a method for preparing the light diffusing film. The light diffusing film has a flat surface and also is excellent in light transmission, light diffusing property and mechanical strength, and further excellent in productivity.