公开(公告)号：US10332939B2

公开(公告)日：2019-06-25

申请号：US15465517

申请日：2017-03-21

Applicant: Samsung Display Co., Ltd.

Inventor： Sung Hun Lee ,  Il Soo Park ,  Seul Ong Kim ,  Hyo Sup Shin

IPC: H01L27/32 ,  H01L51/00 ,  H01L51/50 ,  H01L51/52

Abstract: An organic light emitting diode includes a first electrode and a second electrode overlapping each other, an emission layer disposed between the first electrode and the second electrode, and a hole transport layer disposed between the first electrode and the emission layer, the hole transport layer having a refractive index in a range of 1.0 to 1.6, in which the organic light emitting diode has a microcavity structure between the first electrode and the second electrode.