Patent ID: 7319450
Filing Date: 2008-01-15
Classification: G09G

Abstract:
1. A source driver integrated circuit for driving a thin film transistor liquid crystal display (TFT-LCD), comprising: an output driver outputting a panel driving voltage to drive pixels of a liquid crystal panel in response to a clock signal and a given polarity control signal, the output driver including: a decoder selecting and outputting a grey scale voltage corresponding to an input digital signal; at least two output amplifiers amplifying the grey scale voltage output from the decoder and outputting the result of the amplification, the output amplifiers each having a first input port into which the output signal of the decoder is input and a second input port electrically connected to an output port, the input ports switched in response to a given switch control signal; at least one switch switching and applying the output voltages of the at least two amplifiers to the liquid crystal panel as the panel driving voltage in direct response to the polarity control signal; and a control module generating the switch control signal in response to the clock signal and the given polarity control signal.