| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a light diffusion film that has an excellent incident angle dependency in transmission and diffusion of light and has a wide light diffusion incident angle region, and provide a manufacturing method therefor. <P>SOLUTION: A light diffusion film comprises: a first structure region for anisotropically diffusing an incident light; and a second structure region for isotropically diffusing the incident light. The first structure region has a louver structure that is formed by alternately arranging multiple plate regions, which differ in refractive index, in parallel along a film surface, and the second structure region has a columnar structure that is formed by arranging a grove of multiple columnar objects, which differ from a medium object in refractive index, in the medium object. <P>COPYRIGHT: (C)2012,JPO&INPIT |
