Method for the control of a display screen and display device implementing this method
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United States of America Patent
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Feb 2, 1999
Grant Date -
N/A
app pub date -
Nov 15, 1996
filing date -
Nov 17, 1995
priority date (Note) -
Expired
status (Latency Note)
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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.
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