Backlight module using laser emitters as light source
AssigneeHon Hai Precision Industry Co., Ltd.
InventorPO-CHOU CHEN
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Abstract
A backlight module includes a laser light source and a light guide plate. The light source locates beside a side surface of the light guide plate. The light guide plate comprises a plurality of transflective films arranged along a direction in alignment the laser light source. When the light from the laser light source emits to the transflective films, a part of the light passes through the transflective films and transmits along a same direction, and another part of the light is reflected by the transflective films and emits into a light diffusion plate. The light beams reflected by the transflective films and into the light diffusion plate have the same intensity.
Claims14
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.
Dependencies are inferred from the claim text.