Patent ID: 8226288
Filing Date: 2012-07-24
Classification: G02B

Abstract:
1. A backlight module comprising: a housing comprising a bottom sheet and a frame, wherein the bottom sheet and the frame define a chamber, the frame comprises a first side bar, a second side bar, a third side bar, and a fourth side bar connecting in sequence to form a rectangular shape, and the first side bar has a hollow structure; a first light-mixing tube defined by inner walls of the first side bar and disposed above the bottom sheet and along the frame, wherein the first light-mixing tube comprises a light entrance and a light exit; a plurality of light emitting devices disposed outside the first light-mixing tube and facing the light entrance of the first light-mixing tube, wherein light emitted by the light emitting devices enters the light entrance, goes along a direction parallel to the first side bar, and reaches the light exit through the first light-mixing tube; and at least a reflector disposed outside the first light-mixing tube and facing the light exit of the first light-mixing tube, reflecting light emitted from the light exit to the chamber.