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:
Dec. 25, 2007
Filed:
Jun. 15, 2002
Sébastien Weitbruch, Mönchweiler, DE;
Axel Goetzke, Villingen-Schwenningen, DE;
Rainer Zwing, Villingen-Schwenningen, DE;
Sébastien Weitbruch, Mönchweiler, DE;
Axel Goetzke, Villingen-Schwenningen, DE;
Rainer Zwing, Villingen-Schwenningen, DE;
Thomson Licensing, Boulogne Billancourt, FR;
Abstract
Phosphor based display technologies show artefacts like 'sticking' or 'ghost' images produced by “marking” or “burn-in” effects. In order to remove these artefacts, it is proposed to activate a portion of the display screen as a wiper and to move the wiper at least one time over the complete display screen or a part of the display screen. The wiper will homogenize the complete video screen in order to make the ghost images less visible. Another embodiment is dedicated to the reduction of the short-term burning effect. Here, a dynamic correction of the displayed picture is done. A memorized picture could be subtracted from the current picture in order to reduce the visibility of the short term sticking effect.