Patent ID: 9379142
Filing Date: 2016-06-28
CPC Classification: G09G,H01L

Claim Text:
1. A semiconductor device comprising: a first transistor, a second transistor, and a third transistor, and a fourth transistor; a capacitor; a pixel electrode; a power supply line; a gate line; and a signal line, wherein one of a source and a drain of the first transistor is electrically connected to one of a source and a drain of the second transistor, a first electrode of the capacitor, and the pixel electrode, wherein a gate of the first transistor is electrically connected to one of a source and a drain of the third transistor, and a second electrode of the capacitor, wherein the other of the source and the drain of the first 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 fourth transistor is electrically connected to the power supply line, wherein a gate of the third transistor is electrically connected to the gate line, wherein the signal line is electrically connected to the other of the source and the drain of the third transistor, wherein a channel forming region of the first transistor comprises a first part and a second part, wherein a direction of a channel length of the first part crosses to a direction of a third part of the signal line, wherein a direction of a channel length of the second part crosses to a direction of a fourth part of the gate line, wherein a direction of a channel width of the first part crosses to a direction of a fifth part of the gate line, and wherein a direction of a channel width of the second part crosses to a direction of sixth part of the signal line.