Content dependent display variable refresh rate
US9952642B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 29, 2014 |
| Grant date | Apr 24, 2018 |
| Priority date | — |
| Expiry date | Oct 15, 2034 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2360/16
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Systems and methods for operating a display by dynamically determining a refresh rate for the display. In certain implementations, a processor determines a number of pixels having medium grayscale levels from a histogram for the image. If the number does not exceed a threshold, the processor sets a refresh rate for the display to a first refresh rate. In certain implementations, if the number exceeds a threshold, the processor may set the refresh rate for the display to a second refresh rate. Moreover, the first refresh rate may be lower than the second threshold. In some implementations, the image may be analyzed by subdividing the image into blocks and determining a refresh rate based on grayscale levels or distributions in the blocks. Based on the analysis of the blocks, a corresponding refresh rate may be selected.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.