CIRCUIT FOR DRIVING LIQUID CRYSTAL DISPLAY DEVICE, ESPECIALLY SUPPLYING OPTIMIZED DRIVING CIRCUIT OF LIQUID CRYSTAL DISPLAY DEVICE WITH LOW COST

摘要

PURPOSE: A circuit for driving the liquid crystal display device is provided to implement the accurate gray level voltage to the liquid crystal panel as well as to make the thickness of the module of the liquid crystal device thin. CONSTITUTION: A circuit for driving the liquid crystal display device includes a timing controller, a source driver(360), a gate driver, a liquid crystal panel and a power unit. The power unit is provided with a DC/DC converting unit, a delay circuit(350) and a power supplying unit(330). The DC/DC converting unit outputs the gray voltage inputted into the source driver and the supply voltage of the source driver. The delay circuit outputs the supplying voltage of the source driver inputted from the DC/DC converting unit and the gray level voltage to the source driver sequentially. And, the power supplying unit supplies the power to the DC/DC converting unit.