Backlighting transmissive displays
US7293899B2 · kind B2 · utility
9Cited by
21References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 6, 2003 |
| Grant date | Nov 13, 2007 |
| Priority date | — |
| Expiry date | Oct 6, 2025 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F1/133615
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A backlight assembly for use in a transmissive display system is described. The backlight assembly includes a light source that illuminates a light chamber. A transmissive display is positioned adjacent the light chamber so that light that exits the chamber illuminates the transmissive display. The backlight assembly may include one or more specular reflectors and one or more other optical elements to ensure that the light that exits the light chamber has the desired spatial uniformity, polarization, color, and/or angular distribution.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.