Patent ID: 7319452
Filing Date: 2008-01-15
Classification: G09G,G11C

Abstract:
1. A shift register for providing gate signals to corresponding gate lines in a display device, the shift register comprising a plurality of stages respectively generating the gate signals in sequence, each of the stages comprising: a first pull-up driving part to generate a first control signal in response to an output signal of an adjacent previous stage or a control signal; a pull-up part to generate a current output signal in response to a first clock signal and the first control signal; a pull-down part to operate in response to a second clock signal having a phase opposite to the first clock signal, the pull-down part including a transistor having a gate electrode connected to the second clock signal and a conduction path connected between the transistor and the first clock signal; and a third pull-up driving part connected to a low level terminal to operate in response to an output signal of an adjacent following stage, wherein the first clock signal is directly applied to the pull-up part and a drain electrode of the transistor of the pull-down part, and the second clock signal is directly applied to the gate electrode of the transistor of the pull-down part.