LIGHT DIFFUSION MEMBER

摘要

PURPOSE: A light diffusion member is provided to improve the uniformity of a front plane and brightness while minimizing the number of a sheet and reducing manufacturing costs. CONSTITUTION: A light diffusion member includes a light incident surface(10) and a light emitting surface(20). An optical diffusion member has a plurality of recessed patterns(25) has the certain interval between adjacent patterns. The optical diffusion member a p(x,y) point in a curve line and a Q(0,h) point when an end is a streamline . The distance between points satisfies a specific equation.