Patent ID: 9461071
Filing Date: 2016-10-04
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, an eighth transistor and a ninth transistor; wherein a gate of the first transistor, one of a source and a drain of the first transistor and one of a source and a drain of the fourth transistor are electrically connected to a first wiring, wherein one of a source and a drain of the second transistor, one of a source and a drain of the third transistor, one of a source and a drain of the sixth transistor, one of a source and a drain of the seventh transistor, and one of a source and a drain of the ninth transistor are electrically connected to a second wiring, wherein the other of the source and the drain of the first transistor, the other of the source and the drain of the second transistor and a gate of the fourth transistor are electrically connected to one another, wherein a gate of the second transistor, a gate of the third transistor, one of a source and a drain of the fifth transistor, the other of the source and the drain of the sixth transistor, the other of the source and the drain of the seventh transistor and a gate of the eighth transistor are electrically connected to one another, wherein the other of the source and the drain of the third transistor, the other of the source and the drain of the fourth transistor, a gate the seventh transistor, and a gate of the ninth transistor are electrically connected to one another, wherein one of a source and a drain of the eighth transistor is electrically connected to a third wiring, wherein the other of the source and the drain of the ninth transistor is electrically connected to the other of the source and the drain of the eighth transistor, and wherein a ratio of a channel width to a channel length of the second transistor is higher than a ratio of a channel width to a channel length of the first transistor.