DC VOLTAGE CONVERSION CIRCUIT OF LIQUID CRYSTAL DISPLAY APPARATUS CAPABLE OF REALIZING A HIGH OUTPUT VOLTAGE AND INCREASED POWER EFFICIENCY

摘要

PURPOSE: A DC voltage conversion circuit of liquid crystal display apparatus is provided to be used in driving of liquid crystal display devices by generating a higher voltage from a clock signal and limited DC voltage.;CONSTITUTION: A main pumping circuit unit(710) includes a first TFT through eighth TFT. The main pumping circuit unit outputs a voltage to drive a liquid crystal device. A gate control signal generator(720) controls a voltage applied to a gate of a plurality of TFT by a reversal of a clock signal. The gate control signal generator includes a eleventh TFT through sixteenth TFT. The main pumping circuit unit and gate control signal generator generate a voltage by sharing each other's nodes.;COPYRIGHT KIPO 2012