Data driver and liquid crystal display device including the same
US8319803B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 1, 2009 |
| Grant date | Nov 27, 2012 |
| Priority date | — |
| Expiry date | May 27, 2031 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2340/0428
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A data driver for driving a liquid crystal display (LCD) device includes a common grayscale voltage generator configured to output a plurality of common grayscale voltages, a data processing unit configured to expand externally input image data to provide expanded image data and to adjust an offset of the expanded image data to output data offset adjusted image data, and a data signal output unit configured to output as data signals a first grayscale voltage corresponding to the expanded image data and a second grayscale voltage corresponding to the data offset adjusted image data among the plurality of common grayscale voltages.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.