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US 2009/0154141 A1Published application
Light guide plate and backlight module
OwnerTsung-Ming Hsiaoinventor
Life of this patent
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Abstract
A composite light guide plate contains a transparent plate and a transparent film. A plurality of V-cuts is formed on the light exit plane of the transparent plate, and a plurality of protrudent micro structures is disposed on the bottom surface of the transparent film, filling in the v-cuts. The refractive index of the transparent film is larger than the refractive index of the transparent plate.
Claims18
A composite light guide plate, comprising:
- a transparent plate having a light exit plane and a light entrance plane, the light exit plane having a plurality of V-cuts;
- and
- a transparent film disposed on the light exit plane of the transparent plate, the transparent film having a plurality of protrudent micro structures on an bottom surface of the transparent film, each of the protrudent micro structures corresponding to one of the V-cuts and filling the corresponding V-cut, the refractive index of the transparent film is larger than the refractive index of the transparent plate.
Dependencies are inferred from the claim text.