Computer graphics processing and selective visual display system – Plural physical display element control system – Display elements arranged in matrix
Reexamination Certificate
2006-08-15
2006-08-15
Awad, Amr A. (Department: 2674)
Computer graphics processing and selective visual display system
Plural physical display element control system
Display elements arranged in matrix
C345S058000, C345S094000, C345S211000
Reexamination Certificate
active
07091945
ABSTRACT:
The invention corrects crosstalk induced between scanning electrodes and signal electrodes in a TFD liquid crystal display. The liquid crystal display is provided with a dummy scanning electrode that intersects with signal electrodes, and is arranged in the same manner as scanning electrodes. Since the dummy scanning electrode is connected to the inverting input terminal of an operational amplifier, the voltage of the dummy scanning electrode is maintained at a reference voltage. When the crosstalk from the signal electrodes occurs, a current flows through a resistor so as to maintain the voltage at the dummy scanning electrode at the reference voltage. The voltage applied to the scanning electrodes is increased or decreased in accordance with the current in order to correct the crosstalk.
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