BACKLIGHT UNIT AND LIQUID CRYSTAL DISPLAY DEVICE

摘要

A diffusion plate includes a base body including a plurality of convex portions formed on a principal surface of the base body. An angle of inclination of the convex portions at a base of the convex portions ranges from 38° to 42°. Also, a ratio R/Cp between a curvature R of a summit of the convex portions and a pitch Cp between adjacent convex portions is 0.0014