Illuminating device, light guide body and liquid crystal display device
AssigneeAlps Electric Co., Ltd.
InventorsMitsuru Kano, Hiroyasu Miyata, Tatsumaro Yamashita, Mitsuo Ohizumi
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Abstract
An illuminating device is disclosed., which is high brightness and able to reduce leaking light and preferably made thin. A front light has a light guide plate, a bar light guide body and a light emitting element. A prism shape for reflecting propagating light within the light guide plate and emitting this propagating light to the side of an emitting face of the light guide plate is formed on the emitting face of the light guide plate.
Claims11
An illuminating device comprising a light source and a light guide plate for introducing light of the light source from a side end face to the interior and emitting said light propagated in the interior from an emitting face wherein
- a prism shape for reflecting the propagating light within the light guide plate and emitting the propagating light to said emitting face side is formed on the emitting face of said light guide plate.
A light guide body having a side end face for introducing light to the interior, and an emitting face for emitting said light introduced from the side end face and propagated in the interior, and said side end face and the emitting face being formed in directions crossing each other, wherein
- plural projecting stripes for reflecting the propagating light within a light guide plate and emitting the propagating light to said emitting face side are formed on said emitting face, and said projecting stripe has a slanting face portion on its propagating light advancing direction side.
Dependencies are inferred from the claim text.