公开(公告)号：US10236453B2

公开(公告)日：2019-03-19

申请号：US15061726

申请日：2016-03-04

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Sunwoo Kang ,  Sangho Jeon ,  Youngmi Cho ,  Kyungchan Chae

IPC: H01L51/00 ,  C07F5/02 ,  H01L51/50

Abstract: A dibenzoborole-based compound and an organic light-emitting device including the same. The dibenzoborole-based compound is represented by the formula A1-(A2)n1, wherein A1 may be selected from specific aromatic and non-aromatic carbocycles and heterocycles, n1 may be an integer selected from 1 to 10, and each A2 moiety may independently be selected from a group represented by Formula 2: The dibenzoborole-based compound may be included in the hole transport region or hole transport layer. When the dibenzoborole-based compound has strong electron acceptor characteristics, the hole injection barrier between the anode and the organic layer may be reduced, and thus, an organic light-emitting device including the dibenzoborole-based compound may have high efficiency and a long lifespan.

公开(公告)号：US20170069864A1

公开(公告)日：2017-03-09

申请号：US15134956

申请日：2016-04-21

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Sunghun Lee ,  Seulong Kim ,  Illsoo Park ,  Hyosup Shin ,  Sunwoo Kang ,  Eunkyung Koh ,  Minkyung Kim ,  Taekyung Kim ,  Jaeyong Lee

IPC: H01L51/50 ,  H01L51/00

CPC classification number: H01L51/5004 ,  C09K11/06 ,  H01L51/0058 ,  H01L51/006 ,  H01L51/0061 ,  H01L51/0072 ,  H01L51/5012 ,  H01L51/5056 ,  H01L51/5064 ,  H01L2251/552

Abstract: An organic light-emitting device including: a first electrode, a hole transport region including a first hole transport layer (HTL), an emission layer, an electron transport region; and a second electrode; wherein the first HTL includes a first compound and a second compound, the emission layer includes a third compound and a fourth compound, the electron affinity of the second compound is greater than the electron affinity of the first compound, a lowest unoccupied molecular orbital (LUMO) energy level of the fourth compound is greater than a LUMO energy level of the third compound, the second compound and the third compound are different from each other, and the minimum anionic dissociation energy of the second compound is greater than the triplet energy of the third compound.

Abstract translation: 一种有机发光装置，包括：第一电极，包括第一空穴传输层（HTL），发射层，电子传输区域的空穴传输区域; 和第二电极; 其中第一HTL包括第一化合物和第二化合物，发射层包括第三化合物和第四化合物，第二化合物的电子亲和力大于第一化合物的电子亲和力，最低未占分子轨道（LUMO ）第四化合物的能级大于第三化合物的LUMO能级，第二化合物和第三化合物彼此不同，第二化合物的最小阴离子解离能大于 第三化合物。