Patent ID: 7576723

Claim:
A driving circuit of a display device, the driving circuit having a plurality of interconnected stages for transmitting sequential output signals, each of the stages comprising: a driving portion which transmits the output signal according to an input signal and a clock signal; and a discharging portion, which discharges a voltage charged in the driving portion, wherein the driving portion comprises: a control electrode; a first insulating layer on the control electrode; a semiconductor layer on the first insulating layer; an input electrode at least partially disposed on the semiconductor layer; an output electrode at least partially disposed on the semiconductor layer and over the control electrode, wherein the area of the section where the input electrode is over the control electrode is remarkably smaller than the area of the section where the output electrode is over the control electrode; a second insulating layer on the input electrode and the output electrode; and an auxiliary electrode disposed on the second insulating layer, connected to the control electrode, and overlapping the output electrode; wherein the input electrode and the output electrode each comprise a plurality of branches, interposed to each other.