Device, system and method for display gamma correction
US11145247B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Aug 12, 2019 |
| Grant date | Oct 12, 2021 |
| Priority date | — |
| Expiry date | Oct 1, 2039 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2360/145
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A display module Gamma correction method includes: obtaining corrected Gamma register values corresponding to binding points of a grayscale by correcting register values of s binding points selected from a set of m binding points of the grayscale based on a group of initial Gamma register values that correspond to the m binding points and a target Gamma curve; selecting, from x sets of alternate Gamma register values wherein each set corresponds to m binding points and the initial Gamma register values, a set of Gamma register values used for Gamma correction of the display module(s) as reference register values; and; and correcting register values of remaining m−s binding points based on the reference Gamma register values and the target Gamma curve to obtain a set of target Gamma register values corresponding to the m binding points, wherein s, m and x are all integers greater than one.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.