Patent ID: 7658530
Filing Date: 2010-02-09
Classification: G02B

Abstract:
1. A backlight module comprising: a light guide plate having a light-exit face and at least one light-incidence face; a light source positioned at a side of the light guide plate and separate from the light guide plate, wherein light emitted from the light source enters the light guide plate from the light-incidence face; a plurality of light guide patterns positioned on the light guide plate partly to guide the light toward the light-exit face and to make the light passing through the light-exit face become a plurality of line-like sources; a diffuser sheet positioned on the light guide plate without contacting the light guide plate and the light source, and the diffuser sheet being parallel to the light-exit face of the light guide plate; and a light mixing space disposed between the diffuser sheet and the light guide plate wherein the light passing through the light-exit face mixes in the light mixing space before going out from the backlight module.