LIGHT GUIDE PLATE AND BACKLIGHT DEVICE

摘要

A reflecting plane (13) is provided with a plurality of first optical grooves (14) formed in a lateral direction of the light guide plate (10) and a plurality of second optical grooves (15) formed in a vertical direction of the light guide plate (10) over a prescribed distance from a light incoming plane (11), and a light outgoing plane (12) is provided with an anisotropic diffusion pattern by hologram. The light guide plate having uniform planar light emitting characteristics and excellent light use efficiency is provided.