Patent ID: 8546825

Claim:
A light-emitting device comprising: a pixel portion, the pixel portion including; a transistor, the transistor including a semiconductor region, a gate insulating film over the semiconductor region, and a gate electrode over the gate insulating film; a first insulating film over the gate electrode; a first conductive layer over the first insulating film, wherein the first conductive layer is electrically connected to the semiconductor region; a second insulating film over the first conductive layer; a second conductive layer over the second insulating film, wherein the second conductive layer is electrically connected to the first conductive layer through a first opening provided in the second insulating film; a third insulating film covering an end portion of the second conductive layer; and a light emitting layer over the third insulating film and the second conductive layer, wherein a second opening adjacent to the first opening is provided in the second insulating film, and wherein the second opening is wider than the first opening.