Computer graphics processing and selective visual display system – Display driving control circuitry – Display power source
Reexamination Certificate
2005-11-22
2005-11-22
Orsorio, Ricardo (Department: 2673)
Computer graphics processing and selective visual display system
Display driving control circuitry
Display power source
C345S096000
Reexamination Certificate
active
06967649
ABSTRACT:
A method for reducing power consumption of an LCD panel in a standby mode. The LCD panel includes a plurality of pixel drivers each having a liquid crystal capacitor, a storage capacitor, four switches, a comparator, and a selection circuit. The method includes turning off the first switch and the third switch and turning on the second and the fourth switch so as to use the comparator to compare the voltage of the storage capacitor with a reference voltage; and generating a control signal to the selection circuit according to an output of the comparator so that the selection circuit can output a corresponding display signal to the liquid crystal capacitor according to the control signal.
REFERENCES:
patent: 6618030 (2003-09-01), Kane et al.
patent: 2001/0024186 (2001-09-01), Kane et al.
patent: 2002/0149557 (2002-10-01), Goetz et al.
patent: 2004/0055963 (2004-03-01), Toyozawa et al.
AU Optronics Corp.
Hsu Winston
Orsorio Ricardo
Said Mansour M.
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