OPTICAL DIFFUSER FILM WITH LINEAR DOMAINS OF VARYING DIFFUSION

摘要

PURPOSE: An optical diffusion film having linear domains of variable diffusion is provided to be tapered from the center of a cross section of a linear domain to an edge by including light scattering particles positioned on a surface of a film in linear domains. CONSTITUTION: A linear domain(202) includes a light scattering particle(210) arranged on at least one surface of a film. Thickness of the center of a cross section of the linear domain is thicker than thickness of an edge of a linear domain(203). The light scattering particles have width of 1~15 micron. The light scattering particles have width of 2~6 micron. The light scattering particles are included in an outer side of the linear domains. The linear domains are positioned and are arranged with the same interval in the center.