Lighting unit and liquid crystal display device including the lighting unit
US6870525B2 · kind B2 · utility
25Cited by
9References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 17, 2002 |
| Grant date | Mar 22, 2005 |
| Priority date | — |
| Expiry date | Feb 11, 2023 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2360/145
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A lighting unit includes a reflector, a plurality of light-emitting elements and a controller. The light-emitting elements are respectively provided on the reflector for a plurality of light-emitting regions. The controller supplies a periodic drive signal to each of the light-emitting elements, thereby defining a state of the light-emitting element. The lighting unit illuminates a display panel including a light modulating layer with light that has been emitted from the light-emitting elements. The controller supplies drive signals of substantially different types to at least two of the light-emitting elements.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.