Light guide plate with embossments and backlight system using the same
US7081933B2 · kind B2 · utility
15Cited by
5References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 31, 2003 |
| Grant date | Jul 25, 2006 |
| Priority date | — |
| Expiry date | Feb 22, 2024 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B6/0043
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The present invention provides a light guide plate (500) including a transparent plate (220) having an emitting surface (524) with a plurality of hemispherical embossments (540) formed thereon continuously side-by-side in rows and columns. The transparent plate also has a bottom surface (226) opposite to the emitting surface, with a plurality of hemispherical embossments (260) formed on the bottom surface. The embossments of the emitting and bottom surfaces all face in a direction away from the transparent plate. Other embodiments are also provided.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.