Patent ID: 7494234
Filing Date: 2009-02-24
Classification: G02B

Abstract:
1. A backlight module comprising: a light guide plate, the light guide plate comprising a light incident surface, a light emitting surface adjoining the light incident surface, and a bottom surface opposite to the light emitting surface; a light source placed next to the light incident surface; a polarizer, the polarizer comprising a first prism plate having a plurality of first micro-prisms; a polarizing film formed on surfaces of the first micro-prisms; and a second prism plate having a plurality of second micro-prisms, the first micro-prisms of the first prism plate and the second micro-prisms of the second prism plate meshed with each other with the polarizing film integrated therebetween, the polarizing film being in direct contact with the first prism plate and the second prism plate; a reflector; and a quarter wave plate; wherein the polarizer, the light guide plate, the quarter wave plate, and the reflector are stacked continuously in that order from top to bottom.