Display device with homogenising attentuating filter
US8132927B2 · kind B2 · utility
1Cited by
2References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 30, 2006 |
| Grant date | Mar 13, 2012 |
| Priority date | — |
| Expiry date | May 23, 2029 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B30/27
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A display device includes a display arrangement and an optical attenuator arrangement. The display arrangement has inherent non-uniformity of an output intensity across the display area. The optical attenuator arrangement is positioned in front of the display arrangement and in registration with the display area. The optical attenuator arrangement has a light attenuation characteristic that varies across the display area and is adapted to optically reduce the inherent non-uniformity of the output intensity.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.