Apparatus and method for gamma correction in a liquid crystal display
US6836232B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Dec 31, 2002 |
| Grant date | Dec 28, 2004 |
| Priority date | — |
| Expiry date | Dec 31, 2022 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2330/021
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A gamma correction apparatus for a liquid crystal display comprises a reference voltage generating circuit and a gamma correction circuit. The reference voltage generating circuit outputs a plurality of reference voltages according to the pixel data. The gamma correction circuit gamma-corrects the pixel data according to the reference voltages. The feature of the invention resides in that the reference voltage generating circuit outputs the corresponding reference voltages to gamma-correct the pixel data according to the positions of the pixels corresponding to the pixel data in the LCD monitor and the display colors of the pixels.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.