公开(公告)号：US20170092710A1

公开(公告)日：2017-03-30

申请号：US15312183

申请日：2015-05-20

Applicant: JOLED INC.

Inventor： Yuuki ABE ,  Kazuhiro YOKOTA ,  Yasuharu SHINOKAWA ,  Kou SUGANO ,  Eiji TAKEDA

IPC: H01L27/32

CPC classification number: H01L27/3262 ,  H01L27/1225 ,  H01L27/3244 ,  H01L29/78606 ,  H01L29/78693 ,  H01L51/5206 ,  H01L51/5218 ,  H01L2227/323 ,  H01L2251/5315

Abstract: An organic EL element including: a TFT substrate having a TAOS-TFT; and an organic EL unit having a lower electrode. The lower electrode includes an aluminum containing metal layer, a transition metal containing oxide layer disposed between the aluminum containing metal layer and the TFT substrate, and an aluminum containing oxide layer disposed between the aluminum containing metal layer and the transition metal containing oxide layer and in contact with both the aluminum containing metal layer and the transition metal containing oxide layer. The aluminum containing oxide layer contains aluminum oxide. The transition metal containing oxide layer contains tungsten oxide and has a density of 6.5 g/cm3 or more.