Patent ID: 7773063

Claim:
A display device comprising: a first transistor; a second transistor; a first capacitor; a pixel electrode; a first line; a second line; a third line; and a fourth line; wherein a gate of the first transistor is electrically connected to the third line, one of a source and a drain of the first transistor is electrically connected to the first line, the other of the source and the drain of the first transistor is electrically connected to a gate of the second transistor, one of a source and a drain of the second transistor is electrically connected to the second line, the other of the source and the drain of the second transistor is electrically connected to the pixel electrode and a first terminal of the first capacitor, and a second terminal of the first capacitor is electrically connected to the fourth line, wherein an insulating film is formed over the pixel electrode and the fourth line, and an opening is provided in the insulating film over the pixel electrode, and wherein an organic light emitting layer is formed over the insulating film.