Patent ID: 11967598
Assignee: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.
Field: Audio-visual technology (Electrical engineering)
Classification: CPC H  G | IPC G  H

Claim 0:
1. A display device comprising:
a pixel portion; and
a driver circuit electrically connected to the pixel portion, the driver circuit comprising:
a first transistor;
a second transistor;
a third transistor;
a fourth transistor; and
a fifth transistor,

wherein one of a source and a drain of the first transistor is directly connected to a first wiring,
wherein the other of the source and the drain of the first transistor is electrically connected to a second wiring,
wherein one of a source and a drain of the second transistor is electrically connected to the second wiring,
wherein the other of the source and the drain of the second transistor is electrically connected to a third wiring,
wherein one of a source and a drain of the third transistor is electrically connected to one of a source and a drain of the fourth transistor,
wherein the other of the source and the drain of the third transistor is electrically connected to the third wiring,
wherein a gate of the third transistor is directly connected to a gate of the second transistor,
wherein the gate of the third transistor is electrically connected to a fourth wiring,
wherein a gate of the fourth transistor is directly connected to the first wiring,
wherein one of a source and a drain of the fifth transistor is electrically connected to a gate of the first transistor,
wherein the other of the source and the drain of the fifth transistor is electrically connected to a fifth wiring,
wherein a gate of the fifth transistor is electrically connected to a sixth wiring, and
wherein a clock signal is input to the first wiring.