Device and method for driving liquid crystal display device
US8847876B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 28, 2010 |
| Grant date | Sep 30, 2014 |
| Priority date | — |
| Expiry date | Sep 30, 2031 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2320/0646
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A device and method for driving a liquid crystal display device, which is capable of improving image quality and reducing power consumption by varying a light emission region of a backlight unit according to brightness characteristics of a display image, is disclosed. The driving device includes a liquid crystal panel, panel drivers, a timing controller for generating control signals to control the panel drivers, analyzing a brightness distribution of externally input image data to set the number of divisional driving regions of a backlight, and generating a dimming control signal to control the brightness of each of the divisional driving regions, and a backlight unit for divisionally setting the driving regions of the backlight according to the number of divisional driving regions and the dimming control signal and driving the driving regions according to the dimming control signal to irradiate light to the liquid crystal panel.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.