公开(公告)号：US11329242B2

公开(公告)日：2022-05-10

申请号：US16897132

申请日：2020-06-09

Applicant: LG Display Co., Ltd.

Inventor： Jaemin Moon ,  Jina You ,  JungHyoung Lee ,  SunHee Lee ,  JangDae Youn

IPC: H01L51/50 ,  H01L51/52 ,  A61N5/06

Abstract: A lighting device comprises a substrate including an active area; a first electrode disposed on the substrate and including a transparent conductive material; an organic material layer disposed on the first electrode and including a first light emitting layer and a second light emitting layer; and a second electrode disposed on the organic material layer and including a reflective material, wherein the first light emitting layer emits light having a first wavelength and the second light emitting layer emits light having a second wavelength, and wherein the second light emitting layer includes a first dopant absorbing the light having the first wavelength and emitting the light having the second wavelength.