Display apparatus and projection type lighting apparatus therefor
US7901097B2 · kind B2 · utility
3Cited by
1References
21Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 14, 2008 |
| Grant date | Mar 8, 2011 |
| Priority date | — |
| Expiry date | May 2, 2029 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F1/133622
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A display apparatus comprises a lighting unit for emitting a light, and a first light modulation unit for forming an image through modulation of the light from a light source unit, wherein the lighting unit includes a light source for emitting the light, a second light modulation unit for modulating the light from the light source, being smaller than the first light modulation unit for modulating the light from the light source, and a projection unit for projecting the light modulated through the second light modulation unit, enlargely, upon the first light modulation unit for use of display.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.