Method of driving an LCD employing combining two voltages which change polarity at different times in a frame
US5543945A · kind A · utility
14Cited by
12References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 8, 1994 |
| Grant date | Aug 6, 1996 |
| Priority date | — |
| Expiry date | Jun 8, 2014 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2320/0209
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
The present invention discloses a method of operating an active matrix liquid crystal display device having a liquid crystal layer between a pair of substrates and at least one active device to each of picture element electrodes on at least one of the substrates, so that a driving signal applied to a picture element electrode during one frame cycle is always on a side of a voltage having an identical polarity, which is substantially free from scattering in the display, can be operated at a low driving voltage and obtain high contrast.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.