Computer graphics processing and selective visual display system – Plural physical display element control system – Display elements arranged in matrix
Reexamination Certificate
2005-12-05
2010-12-28
Awad, Amr (Department: 2629)
Computer graphics processing and selective visual display system
Plural physical display element control system
Display elements arranged in matrix
C330S257000, C330S292000
Reexamination Certificate
active
07859505
ABSTRACT:
Provided is an output buffer for a source driver of an LCD with a high slew rate, and a method of controlling the output buffer. The output buffer, which outputs a source line driving signal for driving a source line of the LCD, includes: an amplifier section amplifying an analog image signal; an output section outputting the source line driving signal in response to a signal amplified by the amplifier section; and a slew rate controller section, setting a capacitance of a capacitor section to a first capacitance, during a first charge sharing period in which the source line is precharged to a first precharge voltage, setting the capacitance of the capacitor section to a second capacitance smaller than the first capacitance during a second charge sharing period in which the source line driving signal is supplied to the source line, and setting the capacitance of the capacitor section to the first capacitance while the source line driving signal is maintained after the second charge sharing period.
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Awad Amr
Bukowski Kenneth
F. Chau & Associates LLC
Samsung Electronics Co,. Ltd.
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