Display Driving Circuit and Display Driving Circuit

A liquid crystal display, comprising:

• a first substrate;
• a second substrate;
• a liquid crystal layer, disposed between the first substrate and the second substrate;
• a pixel array, formed on the first substrate;
• and
• a display driving circuit, comprising:
• a timing controller for providing a first start pulse signal;
• a gate driver, formed on the first substrate and electrically connected to said pixel array, comprising a plurality of shift registers connected in series, wherein the plurality of shift registers sequentially generate gate signals according to a preliminary driving signal;
• a control unit, electrically connected to the kth shift register of the gate driver, for generating an output voltage according to a second start pulse signal and the gate signal generated by the kth shift register;
• a boost converter, electrically connected to the control unit, for generating a working voltage according to the output voltage of the control unit;
• and
• a level shifter, electrically connected to the timing controller, the gate driver and the boost converter, for generating the second start pulse signal and the preliminary driving signal for driving the gate driver according to the working voltage and the first start pulse signal.