公开(公告)号：US20200274087A1

公开(公告)日：2020-08-27

申请号：US16560272

申请日：2019-09-04

Applicant: Samsung Display Co., Ltd.

Inventor： Jaehyun LEE ,  Mikyung KIM ,  Seunggak YANG ,  Jiwon KWAK ,  Namwoo KIM ,  Byounghee PARK ,  Hanbyul JANG

IPC: H01L51/50 ,  H01L51/52

Abstract: An organic light-emitting device is provided. The organic light-emitting device includes: an anode; a cathode; and an organic layer between the anode and the cathode and including an emission layer, wherein the emission layer includes a first emission layer including a first host, a second host, and a first dopant, and a second emission layer including a third host, a fourth host, and a second dopant, and the organic light-emitting device satisfies Equations 1 and 2.