Patent ID: 8979344
Filing Date: 2015-03-17
Classification: G02B

Abstract:
1. A backlight module, comprising: a laser light source for generating light; and a light guide plate, the laser light source being located beside a side surface of the light guide plate, the light guide plate comprising a light diffusion plate and a plurality of transflective films arranged along a direction in alignment with the laser light source, when the light from the laser light source emits to the transflective films, a part of the light passing through the transflective films and transmitting along a same direction, another part of the light being reflected by the transflective films to reach the light diffusion plate, except the one of the transflective films which is located most distant from the laser light source, the most distant transflective film only reflecting the part of the light incident thereon to direct the part of the light incident thereon to totally reach the light diffusion plate; the light guide plate comprises a frame, the frame comprises a bottom plate, a cover and a side plate connected between the bottom plate and the cover, the transflective films are positioned between the bottom plate and the cover, the side plate defines a light incident hole in a position corresponding to the laser light source, and the cover defines a plurality of light emitting holes directly over the transflective films, respectively.