Display apparatus

A display apparatus comprising:

• a first wiring;
• a second wiring;
• a first transistor;
• and
• a plurality of second transistors,
• wherein the first wiring extends in a first direction and is supplied with a gate signal,
• wherein the second wiring extends in a second direction intersecting the first direction and is supplied with a source signal,
• wherein a gate of the first transistor is electrically connected to the first wiring,
• wherein one of a source and a drain of the first transistor is electrically connected to the second wiring,
• wherein the other of the source and the drain of the first transistor is electrically connected to a first gate of a third transistor of the plurality of second transistors and a second gate of a fourth transistor of the plurality of second transistors,
• wherein a source of the third transistor of the plurality of second transistors is electrically connected to a source of the fourth transistor of the plurality of second transistors and a drain of the third transistor of the plurality of second transistors is electrically connected to a drain of the fourth transistor of the plurality of second transistors,
• wherein the first transistor comprises a first semiconductor layer where current flows in the first direction or the second direction, and
• wherein the third transistor of the plurality of second transistors comprises a second semiconductor layer where current flows in the first direction or the second direction.

A display apparatus comprising:

• a first wiring;
• a second wiring;
• a first transistor;
• a plurality of second transistors;
• a capacitor;
• and
• a light-emitting element,
• wherein the first wiring is supplied with a gate signal,
• wherein the second wiring is supplied with a source signal,
• wherein a gate of the first transistor is electrically connected to the first wiring,
• wherein one of a source and a drain of the first transistor is electrically connected to the second wiring,
• wherein the other of the source and the drain of the first transistor is electrically connected to a first gate of a third transistor of the plurality of second transistors, a second gate of a fourth transistor of the plurality of second transistors, and one electrode of the capacitor,
• wherein one of the source and the drain of the third transistor is electrically connected to a third wiring,
• wherein the other of the source and the drain of the third transistor is electrically connected to one of a source and a drain of the fourth transistor, and
• wherein the other of the source and the drain of the fourth transistor is electrically connected to the other electrode of the capacitor and one electrode of the light-emitting element.