Color shift correction for display device
US10957235B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Jan 29, 2019 |
| Grant date | Mar 23, 2021 |
| Priority date | — |
| Expiry date | May 24, 2039 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2340/06
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A color mapping and correction scheme for processing pixel data allows a display device to account for color shift. The display device drives its light emitters with different current levels. The light emitters exhibit a color shift in gamut. As such, the display device generate light of two different color gamut regions. An input pixel data may include an original color coordinate that is beyond a common color gamut that is common to the two gamut regions. A mapping scheme is used to convert the original color coordinate to an updated color coordinate within the common color gamut. A first output color coordinate that corrected for the shift in first emitters is generated for the operation of the first light emitters based on the updated color coordinate. A second output color coordinate that corrected for the shift in second emitters is also generated based on the updated color coordinate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.