Circuit for eliminating shutdown afterimages of a display device
US8976164B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Jul 15, 2013 |
| Grant date | Mar 10, 2015 |
| Priority date | — |
| Expiry date | Oct 4, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2330/027
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
The invention relates to a field of display technique. There is disclosed a circuit for eliminating shutdown afterimages of a display. By designing a circuit capable of generating voltages for tuning on TFTs in a time-division way, it is realized that when the display screen shuts down, not only the significant discontinuous differences of pictures are ensured to be not perceived by human eyes so as to eliminate the shutdown afterimages, but also such a problem can be avoided that the circuitry in the panel is burned out by the overlarge instantaneous current caused by the simultaneous turning on of all the TFTs at the moment of shutdown.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.