Method of driving a light source, light source assembly for performing the method, and liquid crystal display apparatus having the same
US8247982B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 30, 2009 |
| Grant date | Aug 21, 2012 |
| Priority date | — |
| Expiry date | Feb 14, 2031 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02B20/00
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A method of driving a light source includes; converting an externally supplied direct current voltage into a first alternating current voltage, boosting the first alternating current voltage to a second alternating current voltage having a higher voltage than the first alternating current voltage, turning on the light source using the second alternating current voltage, detecting an arc noise detection voltage by adding arc noise generated from a high voltage terminal of the light source and arc noise generated from a low voltage terminal of the light source, and blocking the high voltage from being provided to the light source based on the detected arc noise detection voltage.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.