公开(公告)号：US20180033994A1

公开(公告)日：2018-02-01

申请号：US15661871

申请日：2017-07-27

Applicant: LG Display Co., Ltd.

Inventor： Jae-Seung JANG ,  Tae-Shick KIM ,  Hyung-June KIM ,  Min YUN ,  Tae-Seok LIM

IPC: H01L51/50 ,  H01L27/32

CPC classification number: H01L51/5036 ,  H01L27/3244 ,  H01L27/3262 ,  H01L51/5004 ,  H01L51/5024 ,  H01L51/5076 ,  H01L51/5278 ,  H01L2251/5384 ,  H01L2251/552

Abstract: A white organic light emitting device, which is increased in color gamut and lifespan, is discussed and an organic light emitting display device using the same and in a stack having different emission layers disposed in contact with each other, particular properties of a host and a dopant in a major emission layer are used.