Computer graphics processing and selective visual display system – Display driving control circuitry
Reexamination Certificate
2006-11-21
2006-11-21
Pascal, Robart J. (Department: 2817)
Computer graphics processing and selective visual display system
Display driving control circuitry
C345S092000, C345S094000
Reexamination Certificate
active
07138990
ABSTRACT:
Disclosed is a gate pulse modulator. The inventive gate pulse modulator includes an input control unit receiving inputs from a gate high signal terminal, a clock signal terminal and a control signal terminal. In addition, the inventive gate pulse modulator includes an output control unit connected to the gate high signal terminal, the control signal terminal and an external driving signal terminal, wherein the output control unit supplies a base voltage to a gate driving unit when the control signal is low, and in the state where the control signal is high, the output control unit supplies a gate high voltage to the gate driving unit if the clock signal is high and supplies a driving voltage to the gate driving unit if the clock signal is low. In addition, the invention further comprises a time delay unit connected to a stage prior to the input control unit, so that the gate high voltage delayed for a predetermined length of time is supplied to the gate driving unit. Furthermore, a time constant adjusting resistor and a time constant adjusting capacitor are additionally connected so that the gate high voltage decreases not in a stepped pattern but in an exponential pattern.
REFERENCES:
patent: 6028578 (2000-02-01), Ota et al.
patent: 6191768 (2001-02-01), Imamura
patent: 2002/0036626 (2002-03-01), Tsutsui
Goodley James
KEC Corporation
Pascal Robart J.
St. Onge Steward Johnston & Reens LLC
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