Patent ID: 8143918

Claim:
An apparatus for driving a display device, the apparatus including a plurality of stages connected to each other, wherein each stage includes first to seventh transistors and first and second capacitors, the seventh transistor is connected to one terminal of the first capacitor, and a ratio of an area of the first capacitor to a channel width of the seventh transistor is less than 40, wherein the first transistor is connected between a first clock terminal and a gate output terminal, and includes a control terminal connected to a first contact point; the second transistor includes a control terminal and an input terminal commonly connected to a set terminal, and an output terminal connected to the first contact point; the third transistor is connected between the first contact point and a gate voltage terminal, and includes a control terminal connected to a reset terminal; the fourth transistor is connected between the first contact point and the gate voltage terminal, and includes a control terminal connected to a second contact point; the fifth transistor is connected between the gate output terminal and the gate voltage terminal, and includes a control terminal connected to the second contact point; the sixth transistor is connected between the gate output terminal and the first gate voltage terminal, and includes a control terminal connected to a second clock terminal; the seventh transistor is connected between the second contact point and the gate voltage terminal, and includes a control terminal connected to the first contact point; the first capacitor is connected between the first clock terminal and the second contact point; and the second capacitor is connected between the first contact point and the gate output terminal.