Lighting unit and liquid crystal display device using the lighting unit
US7597467B2 · kind B2 · utility
6Cited by
8References
4Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jul 7, 2006 |
| Grant date | Oct 6, 2009 |
| Priority date | — |
| Expiry date | Aug 6, 2026 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B6/0028
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
In a liquid crystal display device using LEDs emitting a plurality of colors as the light sources, diffusion materials are dispersed in a light guide plate. The light guide plate is used to guide and mix the plurality of colors with one another. The diffusion materials are made of a material having optical characteristics, such as a refractive index, different from those of a base material of the light guide plate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.