Method for the control of a display screen and display device implementing this method
US5867135A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Nov 15, 1996 |
| Grant date | Feb 2, 1999 |
| Priority date | — |
| Expiry date | Nov 15, 2016 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2310/0221
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An apparatus and a method for the control of a display screen, especially a plasma panel screen. The screen has cells that can be either in an erased state or in a "recorded" state in which they can be activated by alternating signals called sustaining signals. According to one characteristic, the method consists in dividing the cells into at least two groups, such as an upper group and a lower group, these two groups receiving sustaining signals alternately, and in applying to the cells, during the time when they do not receive the sustaining signals, memory signal enabling them to preserve their "recorded" state or their "erased" state. This results in a reduction of the pulsed discharge current.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.