Liquid crystal display device having an improved backlight
US7518594B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Apr 4, 2007 |
| Grant date | Apr 14, 2009 |
| Priority date | — |
| Expiry date | Apr 4, 2027 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2320/0233
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A liquid crystal display device includes a liquid crystal display panel and a backlight disposed behind the liquid crystal display panel. The backlight includes: a light source including a discharge tube having no electrodes therein, and first and second electrodes disposed outside the discharge tube; and a power source which supplies first and second high-frequency voltages to the first and second electrodes, respectively. The first and second electrodes are disposed at two ends of the discharge tube in a direction of a longitudinal axis thereof, respectively. A length of a first wiring for coupling the power source to the first electrode is approximately equal to a length of a second wiring for coupling the power source to the second electrode.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.