Patent ID: 8284151

Claim:
A semiconductor device comprising: a pixel comprising a first transistor and a liquid crystal element; and a driver circuit electrically connected to a gate of the first transistor, the driver circuit comprising a second transistor, a third transistor, a fourth transistor, a fifth transistor, a sixth transistor, a seventh transistor, an eighth transistor and a ninth transistor; wherein a gate of the second transistor is electrically connected to one of a source and a drain of the second transistor, wherein one of a source and a drain of the third transistor is electrically connected to the other of the source and the drain of the second transistor, wherein a gate of the fourth transistor is electrically connected to the other of the source and the drain of the second transistor, wherein one of a source and a drain of the fourth transistor is electrically connected to the one of the source and the drain of the second transistor, wherein one of a source and a drain of the fifth transistor is electrically connected to the other of the source and the drain of the fourth transistor, wherein the other of the source and the drain of the fifth transistor is electrically connected to the other of the source and the drain of the third transistor, wherein a gate of the sixth transistor is electrically connected to the other of the source and the drain of the fourth transistor, wherein one of a source and a drain of the sixth transistor is electrically connected to one of a source and a drain of the seventh transistor, wherein a gate of the eighth transistor is electrically connected to the one of the source and the drain of the sixth transistor, wherein one of a source and a drain of the eighth transistor is electrically connected to one of a source and a drain of the ninth transistor, wherein the other of the source and the drain of the sixth transistor is electrically connected to the other of the source and the drain of the ninth transistor, wherein the other of the source and the drain of the seventh transistor is electrically connected to the other of the source and the drain of the eighth transistor, wherein a gate of the seventh transistor is electrically connected to the other of the source and the drain of the fifth transistor, and wherein a gate of the ninth transistor is electrically connected to the other of the source and the drain of the fourth transistor.