The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 02, 1999
Filed:
Nov. 15, 1996
Serge Salavin, Saint Egreve, FR;
Jacky Dutin, Saint Jean De Moirans, FR;
Thomson Tubes Electroniques, Meudon La Foret, FR;
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.