Power consumption control for a visual screen display by utilizing a total number of pixels to be energized in the image to determine an order of pixel energization in a manner that conserves power
US6160541A · kind A · utility
14Cited by
22References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 21, 1997 |
| Grant date | Dec 12, 2000 |
| Priority date | — |
| Expiry date | Jan 21, 2017 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2330/021
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A method of controlling the brightness levels on a screen includes determining a total number of screen pixels that must be energized to realize various brightness levels throughout the display. The display preferably is generated in a sequence of frames that are subdivided into energization states. An electronic controller determines an order of energizing selected ones of the pixels during each of the energization states to realize the desired brightness levels for the display while reducing drive load variation and realizing more efficient power consumption.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.