Matrix display device comprising two groups of row electrodes and two column electrodes for image element and its control process
US4782337A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jul 29, 1987 |
| Grant date | Nov 1, 1988 |
| Priority date | — |
| Expiry date | Jul 29, 2007 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2330/08
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A matrix display device and control therefore applicable to liquid crystal displays incorporates two groups of row electrodes and two column electrodes per image element. Each row conductor is connected by k.times.m switches to m groups of k parallel electrodes of a first family and to m groups of k parallel electrodes of a second family which alternate with one another, in such a way that each switch is connected to an electrode of the first family, to an electrode of the second family and to the row conductor. An image element is defined by the overlap zone of two column conductors of a first and a second family with two groups respectively of k electrodes of a first and a second family connected by k switches to the corresponding row conductor. Application to liquid crystal display means.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.