Liquid crystal matrix display
US4378557A · kind A · utility
25Cited by
7References
13Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 18, 1980 |
| Grant date | Mar 29, 1983 |
| Priority date | — |
| Expiry date | Apr 18, 2000 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G3/3644
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A liquid crystal matrix display provides scanning in a plurality of modes wherein the number of scanning electrodes simultaneously driven is varied. Higher driving duty cycles are used as the number of simultaneously driven scanning electrodes increases. Energy consumption is reduced and the quality is improved. A change-over circuit lowers the driving voltage during simultaneous scanning.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.