公开(公告)号：US20220165957A1

公开(公告)日：2022-05-26

申请号：US17511493

申请日：2021-10-26

Applicant: Samsung Display Co., Ltd.

Inventor： Jiyun SONG ,  Samil Kho ,  Donghwan Kim ,  Eunkyoung Kim ,  Hyoungkun Kim ,  Youngseo Park ,  Hyejeong Park

IPC: H01L51/00

Abstract: A light-emitting device includes a first electrode, a second electrode facing the first electrode, and an interlayer between the first electrode and the second electrode. The interlayer includes an emission layer. The interlayer further includes a first electron transport layer and a second electron transport layer. The first and second electron transport layers are between the emission layer and the second electrode. The first electron transport layer includes a first compound represented by Formula 1, and the second electron transport layer includes a second compound represented by Formula 2.