Patent ID: 8872752

Claim:
A scan driver driving a display device having a plurality of gate lines transferring scan signals, and a plurality of source lines transferring data signals, the scan driver comprising: a shift register including a plurality of cascade-connected stages having a first stage connected to a first gate line, each stage having an output terminal electrically connected to a respective one of the plurality of gate lines; and a multiple signal applying unit applying a sub scan signal and a main scan signal, the sub scan signal and the main scan signal sequentially activating each of the plurality of gate lines, wherein the multiple signal applying unit comprises a starting part and an ending part, each of the starting part and the ending part includes ‘I’ number of stages, a last stage of the starting part is cascade-connected to the first stage of the shift register, and a last stage of the shift register is cascade-connected to a first stage of the ending part, wherein the ‘I’ number of stages of the starting part and the ‘I’ number of stages of the ending part are separated from the gate lines so that none of the ‘I’ number of stages of the starting part and the ‘I’ number of stages of the ending part is connected to the gate lines, and wherein an output of a stage of the ‘I’ number of stages of the ending part is inputted to a successive stage of the ‘I’ number of stages of the ending part.