Patent ID: 7847777

Claim:
A source driver of a display device comprising: a data latch unit receiving and storing digital image data in response to a horizontal start signal, and outputting the stored digital image data in response to a rising edge of a first output control signal, wherein the horizontal start signal is sequentially shifted in response to a clock signal; an output unit receiving the digital image data from the data latch unit, and supplying analog data signals corresponding to the received digital image data to a display panel in response to a polarity control signal and an activated second output control signal; and a control signal generation circuit generating the second output control signal that is activated in response to an N th falling edge of the first output control signal and deactivated in response to an (N+2) th rising edge of the first output control signal, in response to the first output control signal and the polarity control signal which controls polarities of the analog data signal supplied to the display panel, where N is an odd number, and wherein the second output control signal has a first level and a second level, the first level is higher than the second level, and the control signal generation circuit maintains the second output control signal at the first level at the (N+1) th rising edge of the first output control signal.