Light emitting device driving method and projection apparatus so equipped
US7408527B2 · kind B2 · utility
4Cited by
24References
27Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 30, 2004 |
| Grant date | Aug 5, 2008 |
| Priority date | — |
| Expiry date | Apr 26, 2026 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2320/064
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A projection system is provided with a controller equipped to drive light emitting devices of a light source of the projection system in a manner that enhances the operational life of the light emitting devices, the ability to provide peak white, and/or finer gray scale.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.