Source driver and method for restraining noise thereof

Details Source driver and method for restraining noise thereof Source driver and method for restraining noise thereof

2011-06-21

2011-06-21

Tran, My-Chau T (Department: 2629)

Miscellaneous active electrical nonlinear devices, circuits, and

Signal converting, shaping, or generating

Synchronizing

C327S100000, C327S141000, C327S142000, C345S204000, C345S211000, C345S212000

Reexamination Certificate

active

07965114

ABSTRACT:
The present invention discloses a source driver and a method for restraining noise output by a source driver during power on/off of a power supply. The source driver includes a multiplexer, at least two channels and at least two output pads. The channels are connected to the output pads via the multiplexer. The source driver is powered by a first supply voltage from the power supply. The two output pads are connected via a charge sharing switch. The method comprises the following steps. First, determine whether the first supply voltage is insufficient, and if yes, perform the following steps. Turn off the charge sharing switch. Then, disconnect the channels from the output pads by the multiplexer.

REFERENCES:
patent: 6069605 (2000-05-01), Ozawa
patent: 6639590 (2003-10-01), Takahashi et al.
patent: 7782097 (2010-08-01), Lee et al.
patent: 2008/0024480 (2008-01-01), Jee et al.
patent: 2008/0129903 (2008-06-01), Hong et al.
patent: 2009/0066378 (2009-03-01), Lee et al.

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