公开(公告)号：US10818848B2

公开(公告)日：2020-10-27

申请号：US16319203

申请日：2018-04-04

Applicant: LG CHEM, LTD.

Inventor： Seong Mi Cho ,  Min Woo Jung ,  Sang Young Jeon ,  Minwoo Choi ,  Hyeon Soo Jeon

IPC: H01L51/00 ,  H01L51/50 ,  H01L51/52

Abstract: The present invention provides an organic light emitting device comprising at least one light emitting layer which comprises a first host compound and a second host compound, and the organic light emitting device has improved driving voltage, efficiency and lifetime.

公开(公告)号：US10454056B1

公开(公告)日：2019-10-22

申请号：US16317444

申请日：2018-01-03

Applicant: LG CHEM, LTD.

Inventor： Min Seung Chun ,  Sang Young Jeon ,  Boon Jae Jang ,  Minwoo Choi ,  Hyeon Soo Jeon

IPC: H01L51/42 ,  H01L51/50 ,  C09K11/06 ,  H01L51/00 ,  H01L51/52

Abstract: The present invention provides an organic light emitting device including a light emitting layer comprising a compound represented by Chemical Formula 1 and an electron transport layer comprising a compound represented by Chemical Formula 2, and having improved driving voltage and efficiency.