Gamma correction method, gamma correction system and display device
US11645963B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 18, 2021 |
| Grant date | May 9, 2023 |
| Priority date | — |
| Expiry date | Nov 18, 2041 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2340/06
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A gamma correction method is disclosed that performs gamma correction for a display device. A plurality of correction matrices respectively corresponding to a plurality of spectrums of different test display devices is obtained. A spectrum of the display device is measured. A correction matrix corresponding to the spectrum of the display device is selected from the plurality of correction matrices. Tristimulus data of the display device are measured and the measured tristimulus data are converted into perception tristimulus data by using the selected correction matrix. The gamma correction for the display device is performed based on the perception tristimulus data.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.