Display device and electronic device

A display device comprising:

• a driver circuit comprising a plurality of pulse output circuits, each of the plurality of pulse output circuits comprising a first transistor;
• and
• a pixel circuit comprising a second transistor,
• wherein each of the plurality of pulse output circuits is configured to drive a gate line,
• wherein the pixel circuit is electrically connected to the gate line,
• wherein a second layer comprising the second transistor is stacked over a first layer comprising the first transistor,
• wherein the first transistor and the second transistor overlap with each other, and
• wherein a conductive layer serving as the gate line is provided in the first layer.

A display device comprising:

• a driver circuit comprising a plurality of pulse output circuits, each of the plurality of pulse output circuits comprising a first transistor;
• and
• a pixel circuit comprising a second transistor,
• wherein each of the plurality of pulse output circuits is configured to drive a gate line,
• wherein the pixel circuit is electrically connected to the gate line,
• wherein a second layer comprising the second transistor is stacked over a first layer comprising the first transistor,
• wherein the first transistor and the second transistor overlap with each other,
• wherein a conductive layer serving as the gate line is provided in the first layer, and
• wherein a channel formation region of each of the first transistor and the second transistor comprises a metal oxide.