White balance adjustment method for a display device
US9414036B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 18, 2014 |
| Grant date | Aug 9, 2016 |
| Priority date | — |
| Expiry date | Apr 18, 2034 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2360/145
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A white balance adjustment method for a display, the method including acquiring spectrum stimulus values of q gray scales of red, green, blue and white of a display panel of a tested display; determining spectrum stimulus value brightness of white and green, and performing interpolation segmenting on brightness of white and green; normalizing brightness of white and green; acquiring an ideal brightness normalized value of white and an ideal brightness normalized value of green; comparing the normalized value for brightness white and the ideal brightness normalized value corresponding to the white and the normalized value for brightness of green and the ideal brightness normalized value corresponding to the green respectively, based on the closest principle, and determining optimal gray scales of white and green; determining a target chromaticity, and changing the gray scales of red and blue, acquiring a RGBW combination which is closest to the target chromaticity.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.