Shift register, and display device

A shift register including unit circuits connected in a multistage manner, the shift register operating in accordance with a plurality of clock signals, the unit circuits being each constituted by transistors of a same conductivity type,

• each of the unit circuits comprising:
• a first output control transistor having one conducting terminal to be supplied with a first clock signal and the other conducting terminal connected to an output terminal;
• an all-on output signal generation circuit which, when an active all-on control signal is supplied to the unit circuit, outputs an ON voltage output signal to the output terminal, and which, when a nonactive all-on control signal is supplied to the unit circuit, stops outputting the ON voltage output signal;
• a precharge circuit which, when the nonactive all-on control signal is supplied to the unit circuit, supplies an ON voltage to a control terminal of the first output control transistor in accordance with an input signal;
• and
• a discharge circuit which, when the active all-on control signal is supplied to the unit circuit, supplies an OFF voltage to the control terminal of the first output control transistor.