公开(公告)号：US09825250B2

公开(公告)日：2017-11-21

申请号：US14897021

申请日：2014-06-30

Applicant: JOLED INC.

Inventor： Kazuhiro Yokota ,  Yuuki Abe ,  Yasuharu Shinokawa ,  Kosuke Mishima

IPC: H01L51/52 ,  H01L51/50 ,  H01L51/56

CPC classification number: H01L51/5218 ,  H01L27/3244 ,  H01L51/5088 ,  H01L51/5096 ,  H01L51/5215 ,  H01L51/56 ,  H01L2251/308 ,  H01L2251/5315 ,  H01L2251/558

Abstract: An organic EL element includes: a first electrode that is a metal layer; a transparent conductive layer containing indium zinc oxide; and a light-emitting layer, wherein the first electrode, the transparent conductive layer, and the light-emitting layer are stacked, and a ratio of zinc to indium in a vicinity of an interface of the transparent conductive layer is lower than or equal to 0.25, the interface being closer to the light-emitting layer.