Method and device for compensating burn-in effects on...

Details Method and device for compensating burn-in effects on... Method and device for compensating burn-in effects on...

2007-12-25

2007-12-25

Awad, Amr A. (Department: 2629)

Computer graphics processing and selective visual display system

Plural physical display element control system

Display elements arranged in matrix

C345S204000

Reexamination Certificate

active

10481302

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.

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