公开(公告)号：US20220173345A1

公开(公告)日：2022-06-02

申请号：US17466834

申请日：2021-09-03

Applicant: LG Display Co., Ltd.

Inventor： Changeun KIM ,  Sujeong LEE

IPC: H01L51/50 ,  H01L51/52 ,  H01L27/32

Abstract: An organic light-emitting device an improved anode structure and an organic electroluminescent display device using the same are provided. The anode structure has a 3 layers stack structure in which a layer closest to an organic light-emissive layer of the organic light-emitting device is made of a material with a high work function such as 5.1 to 5.3 eV. Thus, hole injection efficiency is improved and occurrence of dark spots is suppressed.