Patent ID: 7710384

Claim:
A pulse output circuit comprising: a first transistor having a first electrode electrically connected to an output signal line; a second transistor having a first electrode electrically connected to the output signal line; a first amplitude compensation circuit having an output portion electrically connected to a gate electrode of the first transistor; a second amplitude compensation circuit having an output portion electrically connected to a gate electrode of the second transistor; and a scan direction switch circuit having a first output portion electrically connected to first input portions of the first and second amplitude compensation circuit, and a second output portion electrically connected to second input portions of the first and second amplitude compensation circuit, wherein the first transistor and the second transistor have a same conductivity type; wherein a first pulse signal input portion is electrically connected to a first input portion of the scan direction switch circuit; wherein a second pulse signal input portion is electrically connected to a second input portion of the scan direction switch circuit; wherein the first input portions of the first and second amplitude compensation circuits are conductive to the first pulse signal input portion when the scan direction switch circuit is in a first condition; and wherein the first input portions of the first and second amplitude compensation circuits are conductive to the second pulse signal input portion when the scan direction switch circuit is in a second condition.