Luminance control circuit and display device having the same
US10930211B2 · kind B2 · utility
2Cited by
2References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 28, 2018 |
| Grant date | Feb 23, 2021 |
| Priority date | — |
| Expiry date | Dec 28, 2038 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2360/16
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A luminance control circuit of a display device includes a target luminance gain calculator calculating a target luminance gain based on an average luminance of a first image signal when the first image signal is determined to be a still image, an output luminance gain calculator calculating an output luminance gain based on a previous output luminance gain of a previous frame and the target luminance gain of a present frame, and a luminance scaler outputting a second image signal obtained by changing a luminance of the first image signal based on the output luminance gain.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.