Color temperature self-calibration system and color temperature calibration method
US11908379B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Dec 25, 2020 |
| Grant date | Feb 20, 2024 |
| Priority date | — |
| Expiry date | Apr 2, 2041 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2330/12
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A color temperature calibration method includes: making a display screen display a test image at a target color temperature; measuring a chromaticity of a target pixel in the display screen to obtain measured color coordinates of the target pixel; comparing the measured color coordinates with standard color coordinates; if differences between the measured color coordinates and the standard color coordinates are greater than a target threshold, adjusting at least one of pixel values of the target pixel, until differences between re-obtained measured color coordinates and the standard color coordinates are not greater than the target threshold; and if differences between the measured color coordinates and the standard color coordinates are not greater than the target threshold, ending the color temperature calibration.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.