Driver circuit, display device including the driver circuit, and electronic device including the display device

A driver circuit comprising plural stages of pulse output circuits, each of the pulse output circuits comprising:

• a first circuit for outputting an output signal in accordance with a potential of a first node and a potential of a second node;
• a second circuit for supplying a signal corresponding to an output signal from a pulse output circuit in a preceding stage to the first node;
• a third circuit for intermittently supplying a signal having a high power supply potential to the second node;
• a first transistor for controlling the potential of the first node in accordance with the potential of the second node;
• and
• a second transistor for controlling the potential of the second node,
• wherein the second node is electrically connected to a gate of the first transistor,
• wherein the signal corresponding to the output signal from the pulse output circuit in the preceding stage is supplied to a gate of the second transistor,
• wherein a fourth circuit for raising potentials of source terminals of the first and second transistors from a low power supply potential is provided between the source terminals of the first and second transistors and a wiring for supplying the low power supply potential,
• wherein a switch for setting the potentials of the source terminals of the first and second transistors to a low power supply potential is provided, and
• wherein the switch is controlled by a judgment circuit for judging whether the first and second transistors are enhancement transistors or depletion transistors.