Method for the control of an image display screen displaying half-tones and display device implementing the method
US6067060A · kind A · utility
Assignees
Inventors
Key dates
| Filing date | Feb 20, 1997 |
| Grant date | May 23, 2000 |
| Priority date | — |
| Expiry date | Feb 20, 2017 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2330/025
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Disclosed are a method for the control of an image display screen displaying half-tones and a display device implementing this method. The disclosed method is used to control an image display screen of the type having cells arranged in rows and columns and working either in a state known as an "OFF" state or in a state known as an "ON" state in which they are activated and produce light. The method consists in activating the cells of each row during sub-periods of different duration, with orders of distribution of the sub-periods that are different between two successive rows. This results in a reduction of the amplitude of the variations of a load constituted by the cells in the <<lit>> state of these two consecutive rows. Application inter alia to alternating plasma panels.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.