Display device

A display device comprising:

• a display panel including a plurality of scanning lines and a scanning line drive circuit, the plurality of scanning lines being connected respectively to a plurality of pixel formation portions, the scanning line drive circuit selectively driving the plurality of scanning lines;
• a voltage generation circuit configured to receive external power supply and generate one kind of scanning line selecting voltage and one kind of scanning line unselecting voltage, the scanning line selecting voltage being a voltage for turning the scanning lines to a selected state, the scanning line unselecting voltage being a voltage for turning the scanning lines to an unselected state;
• and
• a drive control circuit configured to control an operation of the scanning line drive circuit using the scanning line selecting voltage and the scanning line unselecting voltage which are generated by the voltage generation circuit, wherein
• the scanning line drive circuit includes a shift register including a plurality of unit circuits provided so as to respectively correspond to the plurality of scanning lines, the shift register being configured to perform a shift operation based on a plurality of clock signals,
• each of the plurality of unit circuits includes:
• an output node connected to a corresponding scanning line;
• an output control transistor having a control terminal, a first conducting terminal to which one of the plurality of clock signals is supplied, and a second conducting terminal connected to the output node;
• an output control node connected to the control terminal of the output control transistor;
• and
• an off control transistor having a control terminal, a first conducting terminal, and a second conducting terminal connected to the output control node,
• in normal times, the drive control circuit sets a voltage of the plurality of clock signals to the scanning line selecting voltage and the scanning line unselecting voltage alternatingly, and sets a voltage supplied to the control terminal of the off control transistor and a voltage supplied to the first conducting terminal of the off control transistor to the scanning line unselecting voltage, and
• when the power supply is stopped, the drive control circuit sets the voltage of the plurality of clock signals, the voltage supplied to the control terminal of the off control transistor, and the voltage supplied to the first conducting terminal of the off control transistor to the scanning line selecting voltage.