shift register, circuit transmission line scan signal supplied thereto, and display device

shift register, scanning signal line drive circuit provided with the same, and display device. The present invention relates to a deployed shift register which can switch between scan orders scanning signal lines while suppressing an increase in a circuit area, an increase in current consumption, and a charge shortage to a pixel capacitance. each stage constituting a shift register (410) includes a thin film of transmitter output control to increase a potential of a scanning signal based on a first clock (CKA) of thin film transistors to increase a potential of a first node connected to a transitor gate terminal thin film output control, based on a scan signal from the pre-stage / a final stage, and two thin film transistors to reduce the potential of the first node, based on a scan signal from a third stage after / the third stage before a stage said. The shift register (410) operates based on four-phase clock signals, including two-phase clock signals (gck1, gck3) which are provided at stages in odd order and signals from biphase clock (gck2, gck4) that are provided even order stages, whose phases are shifted 90 degrees from each other.