Light guide plate having diffusion dots with microlenses

摘要

A light guide plate (20) providing illumination for a liquid crystal display panel includes a light incident surface (23) for receiving light beams from a light source, an emission surface (21) for emitting the light beams, and a bottom surface (25) opposite to the emission surface. A plurality of diffusion dots (27) is formed on the bottom surface for scattering the light beams. Each diffusion dot has a concave surface (273) forming a plurality of microlenses (275) thereon. The light guide plate provides a high brightness and a uniform illumination for the liquid crystal display panel.