Patent ID: 8350466

Claim:
A display device comprising a pixel region, a connection region and an external terminal connection region, the pixel region comprising a plurality of pixels, each of the plurality of pixels comprising: a semiconductor layer including an impurity region; a gate insulating layer over the semiconductor layer; a gate electrode over the gate insulating layer; a first insulating layer over the gate electrode; a first opening that reaches the impurity region in the gate insulating layer and the first insulating layer; a source electrode or a drain electrode connected to the impurity region through the first opening; a second insulating layer over the source electrode or the drain electrode and the first insulating layer; a second opening that reaches the source electrode or the drain electrode in the second insulating layer; a first electrode connected to the source electrode or the drain electrode through the second opening; a third insulating layer having an opening that reaches the first electrode, over the first electrode; a plurality of spacers provided apart from the third insulating layer, on and in contact with the first electrode and inside the opening of the third insulating layer; and an electroluminescent layer over the first electrode and the plurality of spacers, the connection region comprising: a wiring provided over the first insulating layer; a third opening that reaches the wiring provided in the second insulating layer; the third insulating layer which covers an upper edge portion of the third opening; and a second electrode which is connected to the wiring through the third opening and is in contact with the third insulating layer, wherein the source electrode or the drain electrode covers a portion of the gate electrode with the first insulating layer therebetween, and wherein the second insulating layer provided with the third opening that reaches the wiring is placed over the wiring, and the external terminal connection region comprising: a terminal electrode layer; a fourth insulating layer; and a fifth insulating layer over the fourth insulating layer, wherein the fourth insulating layer and the fifth insulating layer cover an edge portion of the terminal electrode layer, wherein the fourth insulating layer is formed from a same layer as the second insulating layer, and wherein the fifth insulating layer is formed from a same layer as the plurality of spacers.