Patent ID: 9716251
Date: 2017-07-25
CPC Classifications: H01L

Claim:
1. A method of manufacturing a display device, comprising: the display device including light emitting elements that are arranged in a two-dimensional matrix, in which the light emitting elements include a drive circuit and a light emitting portion in which a first electrode, an organic layer having a light emitting layer, and a second electrode are laminated, the method comprising: providing the drive circuit and a contact portion on a substrate; forming a first insulating layer that covers the drive circuit, the contact portion, and the substrate; forming a first opening, through which a part of the drive circuit is exposed in a bottom of the first opening, on a first portion of the first insulating layer which is located above the drive circuit; forming a second opening, through which the contact portion is exposed in a bottom of a first concave portion of the first insulating layer, on a second portion of the first insulating layer which is located above the contact portion; forming a conductive material layer on a first entire surface of the first insulating layer, the exposed contact portion, and the exposed part of the drive circuit, and patterning the conductive material layer to form the first electrode on the first insulating layer, to form a first electrode extending portion in the first opening, to form an auxiliary electrode layer, which is distant from the first electrode, over a range from an upper area of the first insulating layer to an internal area of the second opening, and to remove the conductive material layer on at least a part of a bottom of a second concave portion of the first insulating layer; removing a third portion of the first insulating layer, which is located on an exposed portion in the bottom of the second concave portion, to expose the contact portion, forming a second insulating layer on a second entire surface of the first electrode, the first electrode extending portion, the auxiliary electrode layer, and a first exposed portion of the first insulating layer, forming a third opening, through which the first electrode is exposed in a bottom of the third opening, on the second insulating layer, forming a fourth opening, which reaches an exposed portion of the contact portion in the bottom of the second concave portion, on the second insulating layer, or forming the second insulating layer on a third entire surface of the first electrode, the first electrode extending portion, the auxiliary electrode layer, and a second exposed portion of the first insulating layer, removing a fourth portion of the second insulating layer which is located above the second concave portion, removing a fifth portion of the first insulating layer which is located on a fourth portion of a bottom of the second concave portion, forming the third opening, through which the first electrode is exposed in a bottom of the third opening, on the second insulating layer, and forming the fourth opening, which reaches the exposed portion of the contact portion in the bottom of the second concave portion, on the second insulating layer and the first insulating layer; forming the organic layer over a range from the exposed portion of the first electrode in the bottom of the third opening to a part of an upper area of the second insulating layer; and forming the second electrode over a range from an upper area of the organic layer to the upper area of the second insulating layer and furthermore to an internal area of the fourth opening.