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US 2010/0302807 A1Published application
Light Guide plate for a turning film system
AssigneeSKC Haas Display Films Co., Ltd.
InventorXiang-Dong Mi
Life of this patent
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Abstract
The present invention provides a light guide plate comprising: (a) an input surface for receiving light from a light source into the light guide plate, (b) an output surface for emitting light, (c) a bottom surface opposing to the output surface, wherein discrete elements are located at least one of the output or bottom surface, the density function D(x) of the discrete elements has a minimal value Dmin(xmin) for 0.0<xmin<0.25 and a value D0(x0) for x0<xmin and satisfies: D0/Dmin−1>20%.
Claims10
A light guide plate comprising:
- (a) an input surface for receiving light from a light source into the light guide plate,
- (b) an output surface for emitting light,
- (c) a bottom surface opposing to the output surface,
- wherein discrete elements are located on the bottom surface, the density function D(x) of the discrete elements has a minimal value Dmin(xmin) for 0.0<xmin<0.25 and a value D0(x0) for x0<xmin and satisfies:
- D0/Dmin−1>20%
2 more elements
A light guide plate comprising:
- (a) an input surface for receiving light from a light source into the light guide plate,
- (b) an output surface for emitting light,
- (c) a bottom surface opposing to the output surface,
- wherein discrete elements are located on the output surface, the density function D(x) of the discrete elements has a minimal value Dmin(xmin) for 0.0<xmin<0.25 and a value D0(x0) for x0<xmin and satisfies:
- D0/Dmin−1>20%
2 more elements
A backlight unit comprising:
- a light source;
- a light guide plate comprising:
- (a) an input surface for receiving light from the light source into the light guide plate,
- (b) an output surface for emitting light,
- (c) a bottom surface opposing to the output surface,
- wherein discrete elements are located on at least one of the output or bottom surface, the density function D(x) of the discrete elements has a minimal value Dmin(xmin) for 0.0<xmin<0.25 and a value D0(x0) for x0<xmin and satisfies:
- D0/Dmin−1>20%;
- and
- a turning film for redirecting the light received from the output surface of the light guide plate.
6 more elements
Dependencies are inferred from the claim text.