Patent ID: 9269928
Filing Date: 2016-02-23
CPC Classification: H01L

Claim Text:
1. A manufacturing method of an organic EL light emitting device comprising: forming a transparent electrode film on a transparent substrate; forming a positive electrode contact portion that is electrically connected to the transparent electrode film as a part of the transparent electrode film; forming a negative electrode contact portion on a part of an upper side of the transparent electrode film such that the negative electrode contact portion is separated from the transparent electrode film and the positive electrode contact portion, and on a layer different from where the positive electrode contact portion is formed; forming an insulating layer on the transparent electrode film such that a light emitting portion is opened; forming an organic light emitting layer on the transparent electrode film and on the insulating layer; and forming a negative electrode layer that is electrically connected to the negative electrode contact portion on the organic light emitting layer such that the negative electrode layer is separated from the transparent electrode film and the positive electrode contact portion, and further comprising: before the forming a negative electrode contact portion, forming a protective layer for electrically insulating the transparent electrode film and the positive electrode contact portion from the negative electrode contact portion between the transparent electrode film and the positive electrode contact portion, and the negative electrode contact portion.