Light guide grooves in direct type backlight module

摘要

A light guide construction adapted in direct type backlight module comprised in sequence from inside to outside a reflector hood, multiple light sources, a diffuser, multiple optical films, and a liquid crystal panel; multiple light guide grooves being disposed on a light inlet surface and a light outlet surface of the diffuser for the light passing through the light guide to be diffused at least twice by those grooves for more effective light distribution.