DRIVING CIRCUIT OF LIQUID CRYSTAL DISPLAY

PROBLEM TO BE SOLVED: To provide a driving circuit of a liquid crystal display so that common voltage distribution on an ITO layer is more uniform to enhance the display quality, for automatically adjusting common voltage so that the common voltage distribution on the ITO layer is more uniform, so that a gate driver and a source driver can generate different compensating voltage for the common voltage in order to trim each common voltage in order to obtain a more uniform common voltage distribution. SOLUTION: The driving circuit comprises a plurality of gate drivers for selectively driving a plurality of thin film transistors of the liquid crystal display, a plurality of source drivers for receiving an image signal, the plurality of source drivers cooperate with the plurality of gate drivers to display an image on the liquid crystal display, each of the plurality of source drivers further comprises an adjustable common voltage generation circuit, each of the adjustable common voltage generation circuits compensates a common voltage output from each of the adjustable common voltage generation circuit to make each of the common voltage output from each of the adjustable common voltage generation circuit the same or to make each of the common voltage output to the ITO layer of a panel of the liquid crystal display the same based on a common voltage adjustable data and a clock signal, and a timing sequence controller for providing a control signal and a data flow to the plurality of gate drivers and the plurality of source drivers and providing the common voltage adjustable data to each of the adjustable common voltage generation circuit. COPYRIGHT: (C)2006,JPO&NCIPI