Patent ID: 8902144

Claim:
A display device comprising: a driver circuit; and a pixel, wherein the driver circuit includes a first transistor, a second transistor, a third transistor, a fourth transistor, and a capacitor, wherein a first terminal of the first transistor is directly connected to a first wiring and a second terminal of the first transistor is directly connected to a second wiring, wherein a first terminal of the second transistor is directly connected to the second wiring and a second terminal of the second transistor is directly connected to a gate of the first transistor, and a gate of the second transistor is directly connected to the first wiring, wherein a first terminal of the third transistor is directly connected to a third wiring and a second terminal of the third transistor is directly connected to the gate of the first transistor, wherein a first terminal of the fourth transistor is directly connected to the third wiring, a second terminal of the fourth transistor is directly connected to a gate of the third transistor, and a gate of the fourth transistor is directly connected to the gate of the first transistor, and wherein one electrode of the capacitor is directly connected to the first wiring and the other electrode of the capacitor is directly connected to the gate of the third transistor.