Back-lit displays with high illumination uniformity
US7789538B2 · kind B2 · utility
12Cited by
39References
45Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 15, 2006 |
| Grant date | Sep 7, 2010 |
| Priority date | — |
| Expiry date | May 9, 2027 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F1/133611
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A directly illuminated display unit has a display panel and one or more light sources disposed behind the display panel. A diffuser is disposed between the one or more light sources and the display panel, and a light diverting layer is disposed between the one or more light sources and the diffuser. The light diverting layer has a first light-diverting surface facing the one or more light sources and a second light diverting surface facing the display panel. The light diverting layer diverts light passing from the one or more light sources to the diffuser, thus improving the uniformity of the light in the display unit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.