LIQUID CRYSTAL DISPLAY DEVICE

摘要

PURPOSE: A liquid crystal display device is provided to stabilize a wave shape of an image signal, thereby preventing picture quality from being lowered. CONSTITUTION: A controller(210) outputs an image signal and a control signal. A gate driving unit(220) drives gate lines by receiving the control signal. A data driving unit(230) applies an image signal to data lines by receiving the image signal and the control signal. An automatic impedance compensation unit(335) performs impedance matching by compensating a change for differential impedance for impedance matching in a differential signal transfer mode.