Patent ID: 9263468
Filing Date: 2016-02-16
CPC Classification: G02F,G09G,H01L

Claim Text:
1. A semiconductor device comprising: a first transistor, a second transistor, a third transistor, a fourth transistor, a fifth transistor, a sixth transistor, a seventh transistor, and an eighth transistor; a first wiring, a second wiring, a third wiring, a fourth wiring, a fifth wiring, a sixth wiring, and a seventh wiring, wherein one of a source and a drain of the first transistor is electrically connected to the fourth wiring, and the other of the source and the drain of the first transistor is electrically connected to the third wiring, wherein one of a source and a drain of the second transistor is electrically connected to the sixth wiring, and the other of the source and the drain of the second transistor is electrically connected to the third wiring, wherein one of a source and a drain of the third transistor is electrically connected to the seventh wiring, the other of the source and the drain of the third transistor is electrically connected to a gate of the second transistor, and a gate of the third transistor is electrically connected to the seventh wiring, wherein one of a source and a drain of the fourth transistor is electrically connected to the sixth wiring, the other of the source and the drain of the fourth transistor is electrically connected to the gate of the second transistor, and a gate of the fourth transistor is electrically connected to a gate of the first transistor, wherein one of a source and a drain of the fifth transistor is electrically connected to the fifth wiring, the other of the source and the drain of the fifth transistor is electrically connected to the gate of the first transistor, and a gate of the fifth transistor is electrically connected to the first wiring through at least a first conductive layer, wherein one of a source and a drain of the sixth transistor is electrically connected to the sixth wiring, the other of the source and the drain of the sixth transistor is electrically connected to the gate of the first transistor, and a gate of the sixth transistor is electrically connected to the gate of the second transistor, wherein one of a source and a drain of the seventh transistor is electrically connected to the sixth wiring, the other of the source and the drain of the seventh transistor is electrically connected to the gate of the first transistor, and a gate of the seventh transistor is electrically connected to a second wiring through at least a second conductive layer, wherein one of a source and a drain of the eighth transistor is electrically connected to the sixth wiring, the other of the source and the drain of the eighth transistor is electrically connected to the gate of the second transistor, and a gate of the eighth transistor is electrically connected to the first wiring, wherein the first conductive layer and the second conductive layer have a transparency, and wherein the first conductive layer has a first width and the second conductive layer has a second width narrower than the first width.