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US 7,604,388 B2Granted
Light-guiding plate, lighting device and display device
AssigneeFujitsu Limited
InventorsChikara Nishio, Toshikazu Takahashi
Life of this patent
Estimating the term…
Abstract
A light-guiding plate, an optical source device and an electronic device. The light-guiding plate including an incident surface, and an emission surface substantially perpendicular to the incident surface. The incident surface has a surface substantially perpendicular to the incident surface, and has projections or depressions extending substantially parallel to the emission surface. The incident surface has flat planes among the projections or depressions.
Claims15
A light-guiding plate comprising:
- an incident surface;
- and
- an emission surface substantially perpendicular to said incident surface,
- said incident surface having a plurality of projections or depressions extending substantially parallel to said emission surface, and
- said incident surface having flat planes among said projections or depressions.
2 more elements
An optical source device comprising:
- a light source;
- and
- a light-guiding plate comprising:
- an incident surface receiving light from said light source, and
- an emission surface substantially perpendicular to said incident surface,
- said incident surface having a plurality of projections or depressions extending substantially parallel to said emission surface, and
- said incident surface having flat planes among said projections or depressions.
4 more elements
An electronic device comprising:
- a display element;
- and
- a light-guiding plate comprising:
- an incident surface, and
- an emission surface substantially perpendicular to said incident surface and emitting to said display element,
- said incident surface having a plurality of projections or depressions extending substantially parallel to said emission surface, and
- said incident surface having flat planes among said projections or depressions.
4 more elements
Dependencies are inferred from the claim text.