Driving method for a liquid-crystal-display
US6501453B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Aug 20, 1999 |
| Grant date | Dec 31, 2002 |
| Priority date | — |
| Expiry date | Aug 20, 2019 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2320/0219
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
The present invention provides a driving method for a liquid-crystal-display (LCD) which is driven by a plurality of switching transistors positioned in a matrix. The drain of each switching transistor couples to a first scanning signal via a storage capacitor and to a pixel electrode. The gate and the source of each switching transistor respectively couples to a second scanning signal and a video signal. One step of the driving method is shifting the video signal to have a dc voltage of a first predetermined voltage. Another step of the driving method is adding a second predetermined voltage to the pixel electrode after the second scanning signal changes the state of the switching transistor from turned-on to turn-off
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.