公开(公告)号：US20230157148A1

公开(公告)日：2023-05-18

申请号：US17881373

申请日：2022-08-04

Applicant: Samsung Display Co., Ltd.

Inventor： SEULONG KIM ,  EUNGYOUNG PARK ,  HAJIN SONG ,  JONGWON LEE ,  JAEHOON HWANG

IPC: H01L51/00 ,  C07F1/02 ,  C09K11/06

CPC classification number: H01L51/0077 ,  C07F1/02 ,  C09K11/06 ,  H01L51/5076

Abstract: A light emitting device including a first electrode, a hole transport region on the first electrode, an emission layer on the hole transport region, an electron transport region on the emission layer, and a second electrode on the electron transport region is provided. The electron transport region includes a polycyclic compound represented by Formula 1: