Backlight module having a plurality of groups of concentric microstructures on reflective surface thereof
US7824092B2 · kind B2 · utility
4Cited by
2References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 1, 2007 |
| Grant date | Nov 2, 2010 |
| Priority date | — |
| Expiry date | Aug 17, 2028 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B6/002
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A backlight module includes a light source and a light guide plate. The light source includes a light-emitting surface and at least two mean points. The light guide plate includes an incident surface, an emitting surface adjacent to the incident surface, a reflecting surface opposite to the emitting surface, and at least two groups of microstructures formed on the reflecting surface. Each group of microstructures is arranged concentric relative to a respective mean point of the light-emitting surface of the light source.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.