Backlight wedge with encapsulated light source
US7317182B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 24, 2006 |
| Grant date | Jan 8, 2008 |
| Priority date | — |
| Expiry date | May 24, 2026 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B6/009
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A backlight may include a light guide and a light input. The light guide may have a light reflection surface and a light emission surface. The light input may include a diverging wedge having a narrow end and opposing side surfaces extending to the narrow end. A light source well may be formed in the light input, and a light source may be disposed within the light source well. An encapsulant may be disposed about the light source, within the light source well. A specularly reflective film or layer may be disposed adjacent to but not in intimate contact with the opposing side surfaces and may reflect more than 80% of visible light incident on the multilayer polymeric mirror film.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.