Patent ID: 8496371
Filing Date: 2013-07-30
Classification: F21Y,G02B

Abstract:
1. A backlight module, comprising: a light guide plate comprising a first light-emitting surface, a second light-emitting surface opposite the first light-emitting surface, and at least a first side surface and a second side surface connected between the first light-emitting surface and the second light-emitting surface, wherein the light guide plate comprises a first substance and a second substance surrounding the first substance, and the second substance is different to the first substance to form a first light reflecting/diffusing interface and a second light reflecting/diffusing interface adjacent to the first light-emitting surface and to form a third light reflecting/diffusing interface and a fourth light reflecting/diffusing interface adjacent to the second light-emitting surface; a first light source disposed adjacent to the first side surface, wherein a light beam emitted by the first light source is deflected by the first light reflecting/diffusing interface and output via the first light-emitting surface, and a light beam emitted by the first light source is deflected by the third light reflecting/diffusing interface and output via the second light-emitting surface; and a second light source disposed adjacent to the second side surface, wherein a light beam emitted by the second light source is deflected by the second light reflecting/diffusing interface and output via the first light-emitting surface, and a light beam emitted by the second light source is deflected by the fourth light reflecting/diffusing interface and output via the second light-emitting surface.