| 摘要 |
PROBLEM TO BE SOLVED: To provide a long-shaped anisotropic light diffusion film that has a predetermined louver structure to enable anisotropic diffusion of incident light in a direction orthogonal to the length direction of the structure or the neighboring direction thereto.SOLUTION: A long-shaped anisotropic light diffusion film has a louver structure, where the louver structure is composed of a plurality of plate regions having different refractive indices, is formed by alternately arranging the plurality of plate regions having different refractive indices in one arbitrary direction along a film surface, and has a characteristic in which an acute angle formed by the extended direction of the plate region of the louver structure and the length direction of the film becomes a value of 80° or less. |
