Method for establishing gamma correction table for liquid crystal display
US8106866B2 · kind B2 · utility
Assignees
Inventor
Key dates
| Filing date | Jan 28, 2008 |
| Grant date | Jan 31, 2012 |
| Priority date | — |
| Expiry date | Dec 2, 2030 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2360/145
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An exemplary method for establishing a gamma correction table for a liquid crystal display includes: providing a liquid crystal display, a signal generator, and a color analyzer, the liquid crystal display comprising a predetermined gamma correction table; invalidating a predetermined gamma correction table of the liquid crystal display; initializing the liquid crystal display, the signal generator, and the color analyzer; measuring 2n (n is a natural number) reference gray scales of a single-colored image; obtaining a single-colored correction curve relating to luminance values corresponding the reference gray scales; obtaining an ideal single-colored gamma curve; storing 256 gray scales corresponding to the luminance values that most close to the luminance values of gray scale 0 to gray scale 255; and establishing a gamma correction table.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.