Patent ID: 8035109

Claim:
A display device comprising: a pixel comprising: a first transistor; a second transistor; a third transistor; a fourth transistor; a first capacitor; a second capacitor; and an EL element, wherein one of a source and a drain of the first transistor is electrically connected to a first wiring via a first electrical pathway, 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 second transistor via a second electrical pathway, wherein the other of the source and the drain of the second transistor is electrically connected to the EL element via a third electrical pathway, 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 first transistor via a fourth electrical pathway, wherein the other of the source and the drain of the third transistor is electrically connected to a gate of the first transistor via a fifth electrical pathway, wherein one of a source and a drain of the fourth transistor is electrically connected to a second wiring via a sixth electrical pathway, wherein a first electrode of the first capacitor is directly connected to the other of the source and the drain of the fourth transistor via a seventh electrical pathway, wherein a second electrode of the first capacitor is electrically connected to the gate of the first transistor via an eighth electrical pathway, wherein a first electrode of the second capacitor is directly connected to the other of the source and the drain of the fourth transistor via a ninth electrical pathway, and wherein the first electrical pathway, the second electrical pathway, the third electrical pathway, the fourth electrical pathway, the fifth electrical pathway, the sixth electrical pathway, the seventh electrical pathway, the eighth electrical pathway, and the ninth electrical pathway are comprised entirely in the pixel.