Method of driving a display device and a display device suitable for such a method
US4892389A · kind A · utility
15Cited by
4References
18Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Oct 7, 1987 |
| Grant date | Jan 9, 1990 |
| Priority date | — |
| Expiry date | Oct 7, 2007 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2320/0209
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
The number of grey levels in LCD display devices is substantially increased by selecting the picture elements during a short part of the line period. The column electrode is subsequently fixed at a reference voltage. The capacitive croostalk thereby considerably decreases, enabling the use of crosstalk compensation for introducing even more grey levels and/or the adoption of redundancy measures which would otherwise be impossible dure to loss of grey levels.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.