Display device and control method thereof
US7446481B2 · kind B2 · utility
3Cited by
3References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 14, 2006 |
| Grant date | Nov 4, 2008 |
| Priority date | — |
| Expiry date | Jul 24, 2027 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02B20/30
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A display device and method for supplying stable electric power for a light source are provided. A display device comprises a plurality of light sources, a variable electrical power supply which supplies electric power for the light sources, a switching unit which is connected in series with the light sources, and a controller which controls the variable electrical power supply so that voltage across both ends of the switching unit is consistently held in relation to voltage across both ends of the light sources.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.