Patent · US Active

Method for compensating colors of a display device

US7425964B2 · kind B2 · utility

8Cited by

1References

16Claims

0Family size

Assignee

Au Optronics Corporation · TW

Inventors

Chih-Wei Chen · Tainan, TW
Shin-Chang Jiang · Taoyuan, TW
Ker-Feng Lin · Taipei, TW

Key dates

Filing date	Jul 14, 2005
Grant date	Sep 16, 2008
Priority date	—
Expiry date	Apr 27, 2027

Classification

Technology area (CPC G)Physics
CPC primaryG09G2320/0666
WIPO fieldAudio-visual technology
WIPO sectorElectrical engineering

Abstract

A color compensation method for a display device. A brightness eigenvalue and color gamut eigenvalue of the display device is determined. A plurality of signals of three major colors are applied into the display device to display a plurality of colors. The colors are measured to get a plurality of chromaticity eigenvalues. The brightness eigenvalue, the color gamut eigenvalue and the signals of the three major colors are applied into a formula to establish a color database. A target chromaticity eigenvalue and a data eigenvalue in the color database are applied into another formula to calculate a compensated signal eigenvalue to compensate color difference of the display device.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.