OUTPUT CIRCUIT AND METHOD OF SOURCE DRIVER

摘要

An output circuit of a source driver and an output method for the source driver are provided to reduce an EMI(ElectroMagnetic Interference) by adjusting a slew rate of a clock signal and decreasing a peak current. A first buffer(410) receives a first voltage and outputs a first sub voltage. A second buffer(420) receives a second voltage and outputs a second sub voltage. The second voltage is complementary to the first voltage, and the second sub voltage is complementary to the first sub voltage. A sharing signal generator generates a sharing signal, which is activated according to a level changing timing of the first and second sub voltages. The sharing switch is deactivated when the first and second sub voltages reach a reference level. A first switch(440) couples or disconnects an output terminal of the first buffer with or from the first output line. A second switch(450) couples or disconnects an output terminal of the second buffer with or from the second output line. When the first and second switches are closed, a sharing switch(460) couples the first and second output lines with each other in response to the sharing signal.