DATA DRIVING CIRCUIT, LIQUID CRYSTAL DISPLAY DEVICE, AND DRIVING METHOD

摘要

A data driving circuit, a liquid crystal display device, and a driving method. The data driving circuit comprises: a source driving module, a pixel electrode, a common electrode opposite to the pixel electrode, and a gamma correction module which is coupled with the source driving module. The source driving module is coupled with the pixel electrode. The data driving circuit also comprises a compensation module. The compensation module detects and obtains variation of the voltage of the common electrode to produce a compensation voltage, superposes the compensation voltage and gamma voltage of the gamma correction module, and sends the superposed compensation voltage and gamma voltage to the source driving module. The compensation voltage output by the compensation module can compensate the variation of the voltage of the common electrode.