Matrix display device with multiple screen electrodes
US4509828A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jan 26, 1982 |
| Grant date | Apr 9, 1985 |
| Priority date | — |
| Expiry date | Jan 26, 2002 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F1/134345
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
The invention relates to a matrix display device with a plurality of sets of electrodes as well as to the process for controlling the same. The device comprises two insulating walls and by a material having a plurality of zones distributed in matrix-like manner and inserted between a first system of electrodes covering one of the two walls and defining p control columns and a second system of electrodes covering the other wall, constituted by parallel conductive strips, and defining q control lines, the column x.sub.i in which i is an integer such that 1.ltoreq.i.ltoreq.p and row y.sub.j in which j is an integer such that 1.ltoreq.j.ltoreq.q defining a zone x.sub.i y.sub.j of the material. The first system is constituted by a solid layer of electrodes and n sets of electrodes, which are electrically insulated from one another. The electrodes of this system being grouped in such a way that each group of electrodes corresponds to a single control row.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.