Optimized method of addressing a liquid-crystal screen and device for implementing it
US5995075A · kind A · utility
12Cited by
0References
5Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jan 22, 1997 |
| Grant date | Nov 30, 1999 |
| Priority date | — |
| Expiry date | Jan 22, 2017 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2320/0223
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
The present invention relates to an optimized method of addressing liquid-crystal screens. In accordance with the invention, the matrix addressing method, periodically scanning each line with a signal of voltage V.sub.A (t) as a function of time, is characterized in that each period of this signal consists of a plateau up to T.sub.F then a curve which may be a straight-line portion of slope .alpha. between T.sub.F and T.sub.F'. Application to liquid-crystal screens.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.