Patent ID: 8680492

Claim:
A light guide plate, comprising: a light incidence surface for receiving light rays; a transforming fluorescent powder disposed at a side of the light incidence surface for converting the light rays into white rays; a reflection surface for reflecting the light rays received by the light incidence surface and destroying total internal reflection formed inside the light guide plate, by the light rays received by the light incidence surface, to generate planar light rays; a light emitting surface for emitting the planar light rays; and a lateral reflection surface disposed away from an end of the light incidence surface for reflecting the light rays coming from the light incidence surface and the reflection surface; characterized in that: the lateral reflection surface has a compensative fluorescent powder disposed thereon for adjusting a color of the planar light rays emitted from the light emitting surface; the compensative fluorescent powder is doped in a body of the lateral reflection surface; or the lateral reflection surface has a transparent film attached at an inner side of the lateral reflection surface and the transparent film is coated with the compensative fluorescent powder; or the lateral reflection surface has the transparent film attached at the inner side of the lateral reflection surface and the compensative fluorescent powder is doped in the transparent film; the lateral reflection surface has at least one angle formed thereon.