| 摘要 |
An optical film that without the use of prism sheet or lens sheet, attains desirable front luminance and light diffusivity. Optical film (1) is constructed by superimposing one upon the other two laminates each comprised of transparent support (11) and, superimposed thereon, light diffusion layer (12) composed of acrylic resin particles and a styrene-acrylic copolymer resin binder. Preferably, the styrene-acrylic copolymer resin binder has a glass transition temperature of 40°C or higher. Preferably, the light diffusion layer (12) is formulated so as to contain an acrylic resin binder of 30°C or below glass transition temperature. |
