Patent ID: 8508513

Claim:
A display device comprising a display panel which includes a plurality of pixels and a plurality of common electrodes; and a vertical driver circuit, wherein: the vertical driver circuit includes a shift register circuit and a common electrode driver circuit, the shift register circuit is comprised of a plurality of basic circuits which outputs common electrode driving pulses based on a transfer clock, the common electrode driver circuit is comprised of a plurality of common basic circuits to which the respective common electrode driving pulses outputted from the respective basic circuits of the shift register circuit and the transfer clock are inputted, and each of said common basic circuits includes: a circuit A which fetches AC signals based on the common electrode driving pulse; a circuit B which outputs, based on the AC signals fetched by the circuit A, a first common voltage or a second common voltage which differs from the first common voltage in voltage level to the common electrodes corresponding to the AC signals; and a circuit C which holds a state of the circuit B based on the transfer clock, wherein the circuit A includes: a first transistor which receives inputting of the common electrode driving pulse to a control electrode thereof, and fetches a first AC signal inputted to a second electrode thereof based on the common electrode driving pulse; a second transistor which receives inputting of the common electrode driving pulse to a control electrode thereof, and fetches a second AC signal inputted to a second electrode thereof based on the common electrode driving pulse; a third transistor in diode connection which is connected to a first electrode of the first transistor; and a fourth transistor in diode connection which is connected to a first electrode of the second transistor.