Display device and electronic device

A circuit comprising:

• a first transistor;
• a second transistor;
• a third transistor;
• a fourth transistor;
• a fifth transistor;
• and
• a sixth transistor,
• wherein:
• a first terminal of the first transistor is electrically connected to a first wiring;
• a second terminal of the first transistor is electrically connected to a second wiring;
• a first terminal of the second transistor is electrically connected to a third wiring;
• a first terminal of the third transistor is electrically connected to a fourth wiring;
• a first terminal of the fourth transistor is electrically connected to the third wiring;
• a first terminal of the fifth transistor is electrically connected to the second wiring;
• a second terminal of the fifth transistor is electrically connected to the third wiring;
• a first terminal of the sixth transistor is electrically connected to the second wiring;
• a second terminal of the sixth transistor is electrically connected to the third wiring;
• a gate electrode of the first transistor is directly connected to a second terminal of the second transistor and a gate electrode of the fourth transistor;
• a gate electrode of the second transistor is directly connected to a second terminal of the third transistor and a second terminal of the fourth transistor;
• and
• a gate electrode of the third transistor is directly connected to the first terminal of the third transistor.

A semiconductor device comprising:

• a first transistor;
• a second transistor;
• a third transistor;
• a fourth transistor;
• a fifth transistor;
• and
• a sixth transistor,
• wherein:
• a first terminal of the first transistor is electrically connected to a first wiring;
• a second terminal of the first transistor is electrically connected to a second wiring;
• a first terminal of the second transistor is electrically connected to a third wiring;
• a first terminal of the third transistor is electrically connected to a fourth wiring;
• a first terminal of the fourth transistor is electrically connected to the third wiring;
• a first terminal of the fifth transistor is electrically connected to the second wiring;
• a second terminal of the fifth transistor is electrically connected to the third wiring;
• a first terminal of the sixth transistor is electrically connected to the second wiring;
• a second terminal of the sixth transistor is electrically connected to the third wiring;
• a gate electrode of the first transistor is directly connected to a second terminal of the second transistor and a gate electrode of the fourth transistor;
• a gate electrode of the second transistor is directly connected to a second terminal of the third transistor and a second terminal of the fourth transistor;
• and
• a gate electrode of the third transistor is directly connected to the first terminal of the third transistor.

A circuit comprising:

• a first transistor;
• a second transistor;
• a third transistor;
• a fourth transistor;
• a fifth transistor;
• and
• a sixth transistor,
• wherein:
• a first terminal of the first transistor is electrically connected to a first wiring;
• a second terminal of the first transistor is electrically connected to a second wiring;
• a first terminal of the second transistor is electrically connected to a third wiring;
• a first terminal of the third transistor is electrically connected to a fourth wiring;
• a first terminal of the fourth transistor is electrically connected to the third wiring;
• a first terminal of the fifth transistor is electrically connected to the second wiring;
• a second terminal of the fifth transistor is electrically connected to the third wiring;
• a first terminal of the sixth transistor is electrically connected to the second wiring;
• a second terminal of the sixth transistor is electrically connected to the third wiring;
• a gate electrode of the first transistor is directly connected to a second terminal of the second transistor and a gate electrode of the fourth transistor;
• a gate electrode of the second transistor is directly connected to a second terminal of the third transistor and a second terminal of the fourth transistor;
• a gate electrode of the third transistor is directly connected to the first terminal of the third transistor;
• and
• the first wiring has a width which is smaller than a channel width of the first transistor.

A semiconductor device comprising:

• a first transistor;
• a second transistor;
• a third transistor;
• a fourth transistor;
• a fifth transistor;
• and
• a sixth transistor,
• wherein:
• a first terminal of the first transistor is electrically connected to a first wiring;
• a second terminal of the first transistor is electrically connected to a second wiring;
• a first terminal of the second transistor is electrically connected to a third wiring;
• a first terminal of the third transistor is electrically connected to a fourth wiring;
• a first terminal of the fourth transistor is electrically connected to the third wiring;
• a first terminal of the fifth transistor is electrically connected to the second wiring;
• a second terminal of the fifth transistor is electrically connected to the third wiring;
• a first terminal of the sixth transistor is electrically connected to the second wiring;
• a second terminal of the sixth transistor is electrically connected to the third wiring;
• a gate electrode of the first transistor is directly connected to a second terminal of the second transistor and a gate electrode of the fourth transistor;
• a gate electrode of the second transistor is directly connected to a second terminal of the third transistor and a second terminal of the fourth transistor;
• a gate electrode of the third transistor is directly connected to the first terminal of the third transistor;
• and
• the first wiring has a width which is smaller than a channel width of the first transistor.