Patent ID: 8864356

Claim:
A backlight module, comprising: a light guide plate having a light-emitting surface and a bottom surface opposite to the light-emitting surface and a first side surface and a second side surface opposite to the first side surface, wherein each of the first side surface and the second side surface is connected with the light-emitting surface; a first light source device disposed adjacent to the first side surface and comprising at least one first polarized light source for emitting a first polarized light beam; and a second light source device disposed adjacent to the second side surface and comprising at least one second polarized light source for emitting a second polarized light beam, wherein the light guide plate comprises a first polarized light transmitting region and a second polarized light transmitting region, the first polarized light transmitting region is adjacent to the second light source device, the second polarized light transmitting region is adjacent to the first light source device, the first polarized light transmitting region is capable of reflecting the second polarized light beam and transmitting the first polarized light beam, and the second polarized light transmitting region is capable of reflecting the first polarized light beam and transmitting the second polarized light beam.