公开(公告)号：US20220029113A1

公开(公告)日：2022-01-27

申请号：US17308280

申请日：2021-05-05

Applicant: Samsung Display Co., Ltd. ,  INDUSTRY-ACADEMIC COOPERATION FOUNDATION GYEONGSANG NATIONAL UNIVERSITY

Inventor： MI EUN JUN ,  HYEIN JEONG ,  Soon-Ki KWON ,  Yun-Hi KIM ,  Youheon KIM

IPC: H01L51/00

Abstract: Provided is an organic electroluminescence device including a first electrode, an organic layer on the first electrode, and a second electrode on the organic layer, wherein the organic layer includes a polycyclic compound represented by Formula 1. The organic electroluminescence device including a polycyclic compound represented by Formula 1 thereby exhibits high luminous efficiency.

公开(公告)号：US20230287016A1

公开(公告)日：2023-09-14

申请号：US18104988

申请日：2023-02-02

Applicant: Samsung Display Co., Ltd. ,  Seoul National University R&DB Foundation ,  University-Industry Cooperation Group of Kyung Hee University

Inventor： MI EUN JUN ,  CHANGWOONG CHU ,  Soo Young PARK ,  Jongwook PARK ,  Dongmin PARK ,  Chi Hyun RYOO ,  Seyoung JUNG

IPC: C07F7/08 ,  H10K50/11 ,  H10K85/60 ,  H10K85/40 ,  H10K85/30

CPC classification number: C07F7/0812 ,  H10K50/11 ,  H10K85/658 ,  H10K85/40 ,  H10K85/654 ,  H10K85/6572 ,  H10K85/346

Abstract: Embodiments provide a light emitting device that includes a first electrode, a second electrode facing the first electrode, and an emission layer disposed between the first electrode and the second electrode, wherein the emission layer includes a first compound represented by Formula 1, which is explained in the specification:

公开(公告)号：US20230141820A1

公开(公告)日：2023-05-11

申请号：US17862923

申请日：2022-07-12

Applicant: Samsung Display Co., Ltd.

Inventor： MI EUN JUN ,  SERAN KIM ,  CHANSEOK OH

IPC: H01L51/00 ,  C07F5/02 ,  C09K11/06

CPC classification number: H01L51/008 ,  H01L51/0075 ,  H01L51/0067 ,  H01L51/0087 ,  H01L51/006 ,  C07F5/027 ,  C09K11/06 ,  C09K2211/1014 ,  H01L51/5028

Abstract: A light emitting element according to an embodiment includes a first electrode, a second electrode disposed on the first electrode, and an emission layer disposed between the first electrode and the second electrode. The emission layer includes a first compound, and at least one of a second compound, a third compound, and a fourth compound. The first compound is represented by Formula 1, the second compound is represented by Formula HT-1, the third compound is represented by Formula ET-1, and the fourth compound is represented by Formula M-b. Accordingly, the light emitting element has decreased driving voltage and improved efficiency.

公开(公告)号：US20230085598A1

公开(公告)日：2023-03-16

申请号：US17687828

申请日：2022-03-07

Applicant: Samsung Display Co., Ltd.

Inventor： YOUNGKI LEE ,  MI EUN JUN

IPC: H01L51/50 ,  C09K11/06

Abstract: A light emitting element includes a first electrode, a second electrode disposed on the first electrode, and a light emitting area disposed between the first electrode and the second electrode and including a phosphorescent dopant, a hole transporting host, and an electron transporting host, wherein the light emitting area includes at least one auxiliary light emitting layer including a thermally activated delayed fluorescence dopant, the hole transporting host, and the electron transporting host and spaced apart from the first electrode and the second electrode.