公开(公告)号：US20180123078A1

公开(公告)日：2018-05-03

申请号：US15700385

申请日：2017-09-11

Applicant: LG Display Co., Ltd.

Inventor： WooJung BYUN ,  HanGyu JUNG ,  Yongsun JO ,  SungSoo KIM

IPC: H01L51/52 ,  H01L27/32

CPC classification number: H01L51/5206 ,  H01L27/12 ,  H01L27/3246 ,  H01L27/3262 ,  H01L27/3272 ,  H01L27/3279 ,  H01L51/5228

Abstract: Disclosed is an organic light emitting display device that may include a substrate having an active area and a pad area, a passivation layer provided on the active area of the substrate, an anode electrode provided on the passivation layer, a bank layer for defining a pixel region on the anode electrode, an organic emitting layer provided on the bank layer and connected with the anode electrode, a cathode electrode provided on the organic emitting layer, and an auxiliary electrode electrically connected with the cathode electrode and provided under the passivation layer, wherein a contact hole for exposing the auxiliary electrode is provided in the passivation layer, the auxiliary electrode includes a lower auxiliary electrode and an upper auxiliary electrode, and the cathode electrode is in contact with an upper surface of the lower auxiliary electrode via the contact hole.