Panel self refreshing with changing dynamic refresh rate
US9240031B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Oct 2, 2014 |
| Grant date | Jan 19, 2016 |
| Priority date | — |
| Expiry date | Oct 2, 2034 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2340/0435
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Provided are methods and systems for video data processing. In an exemplary system, there is a video source and a display unit. The display unit may receive video data from the video source and display it at a first refresh rate. The video source may cause the display unit to enter a power economy mode, in which the displayed video is static. In this mode, the video source stops sending new video data, while the display unit selectively stores one or more of the previously received video frames and further displays it repeatedly at a second refresh rate, which may be lower than the first refresh rate (e.g., it may be decreased from 60 Hz to 40 Hz). In the power economy mode, the power consumed is decreased, in some embodiments, by about 10-20% for both the video source and the display unit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.