SHIFT REGISTER, DISPLAY-DRIVING CIRCUIT, DISPLAYING PANEL, AND DISPLAYING DEVICE

摘要

Provided is a shift register of a display-driving circuit which carries out simultaneous selection of a plurality of signal lines by using a simultaneous selection signal. A stage of the shift register includes (i) a set-reset type flip-flop and (ii) a signal generating circuit which generates an output signal of the stage by selectively outputting a signal in response to an output of the flip-flop. The output signal of the stage (i) becomes active due to an activation of the simultaneous selection signal and then (ii) remains active while the simultaneous selection is being performed, and the output from the flip-flop is inactive during a period in which a setting signal and a resetting signal are both being active. This makes it possible to quickly carry out the simultaneous selection of all the signal lines and the initialization of the shift register.