Image display device and driving method thereof
US6750835B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Dec 22, 2000 |
| Grant date | Jun 15, 2004 |
| Priority date | — |
| Expiry date | Dec 17, 2021 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2320/0276
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A novel driving method is provided in which source line inverting drive or dot inverting drive is performed for a case of driving a plurality of source lines by one D/A converter circuit in a source signal line driver circuit of an active matrix image display drive that corresponds to digital image signal input. In a first driving method of the present invention, two systems of grey-scale electric power supply lines are supplied to a source signal line driver circuit in order to obtain output having differing polarities from a D/A converter circuit, switches for connecting to the two systems of grey-scale electric power supply lines are prepared in each D/A converter circuit, the grey-scale electric power supply lines connected to each D/A converter circuit are switched in accordance with a control signal input to the switches, and source line inverting drive or dot inverting drive are performed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.