公开(公告)号：US11251388B2

公开(公告)日：2022-02-15

申请号：US16222899

申请日：2018-12-17

Applicant: Samsung Display Co., Ltd.

Inventor： Hyosup Shin ,  Taekyung Kim

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

Abstract: An organic light-emitting device includes: a first electrode; a second electrode facing the first electrode; and an organic layer between the first electrode and the second electrode and including an emission layer and a triplet exciton quenching layer. A display apparatus includes a thin film transistor comprising a source electrode, a drain electrode, and an active layer; and the organic light-emitting device, where the first electrode of the organic light-emitting device is electrically coupled to one selected from the source electrode and the drain electrode of the thin film transistor.

公开(公告)号：US11043646B2

公开(公告)日：2021-06-22

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 ,  C09K11/06

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.

公开(公告)号：US10921253B2

公开(公告)日：2021-02-16

申请号：US16407792

申请日：2019-05-09

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Yoonkyoo Lee ,  Taekyung Kim ,  Daeyup Shin

IPC: G01N21/64 ,  G01N27/30

Abstract: An apparatus to evaluate a stability of a luminescent material includes an electrochemical cell that includes a sample including a solvent and the luminescent material mixed in the solvent, a voltage application device that applies a constant voltage to the sample, a light source that irradiates a source light to the sample, and a photoluminescence measuring device that measures a luminescence spectrum of an emission light generated by the luminescent material.

公开(公告)号：US10727442B2

公开(公告)日：2020-07-28

申请号：US14836062

申请日：2015-08-26

Applicant: Samsung Display Co., Ltd.

Inventor： Seongmin Wang ,  Taekyung Kim ,  Ohjune Kwon ,  Mugyeom Kim ,  Yoonhyeung Cho

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

Abstract: An organic light-emitting display apparatus includes: a substrate; first electrodes arranged on the substrate at separate positions; a second electrode disposed on the first electrodes to face the first electrodes; an intermediate layer disposed between the first electrodes and the second electrode and including an emission layer; a first encapsulating layer disposed on the second electrode and patterned to have a plurality of islands, the first encapsulating layer including an organic material; and a second encapsulating layer covering the islands of the first encapsulating layer and including an inorganic material.

公开(公告)号：US20200075869A1

公开(公告)日：2020-03-05

申请号：US16518346

申请日：2019-07-22

Applicant: Samsung Display Co., Ltd.

Inventor： Taekyung Kim ,  Sunwoo Kang ,  Pilgu Kang ,  Jiyoung Kwon ,  Soonchul Chang ,  Jaehoon Hwang

IPC: H01L51/00 ,  C07D471/16 ,  C09K11/06 ,  C07D471/06

Abstract: Provided are an organic light-emitting device having improved luminescent efficiency and a compound.

公开(公告)号：US10230054B2

公开(公告)日：2019-03-12

申请号：US15227820

申请日：2016-08-03

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Minkyung Kim ,  Taekyung Kim ,  Miehwa Park ,  Jaeyong Lee

IPC: H01L51/50 ,  H01L51/00 ,  C09K11/06 ,  C09K11/02 ,  H05B33/14 ,  H05B33/20

Abstract: An organic light-emitting device includes: a first electrode; a second electrode facing the first electrode; and an organic layer between the first electrode and the second electrode, the organic layer including an emission layer, wherein the organic layer includes a first compound and a second compound. The organic light-emitting device may have a high efficiency and long lifespan.

公开(公告)号：US20190031614A1

公开(公告)日：2019-01-31

申请号：US16028190

申请日：2018-07-05

Applicant: Samsung Display Co., Ltd. ,  Research & Business Foundation SUNGKYUNKWAN UNIVERSITY

Inventor： Jungsub Lee ,  Taekyung Kim ,  Daeyup Shin ,  Seungsoo Yoon ,  Hyein Jeong ,  Changwoong Chu

IPC: C07D221/18 ,  C07F9/6568 ,  H01L51/50 ,  H01L51/52 ,  H01L51/00

Abstract: A condensed cyclic compound and an organic light-emitting device including the same are disclosed. According to an embodiment of the present disclosure, a condensed cyclic compound is represented by Formula 1:

公开(公告)号：US10032994B2

公开(公告)日：2018-07-24

申请号：US15245148

申请日：2016-08-23

Applicant: Samsung Display Co., Ltd.

Inventor： Minkyung Kim ,  Taekyung Kim ,  Miehwa Park ,  Jaeyong Lee

IPC: H01L51/00 ,  C09K11/02 ,  C09K11/06 ,  H01L51/50 ,  H01L51/52

CPC classification number: H01L51/0071 ,  C09K11/025 ,  C09K11/06 ,  H01L51/0067 ,  H01L51/007 ,  H01L51/0072 ,  H01L51/0081 ,  H01L51/0085 ,  H01L51/5012 ,  H01L51/5016 ,  H01L51/5203 ,  H01L2051/0063 ,  H01L2251/5384

Abstract: An organic light-emitting device including a first electrode, a second electrode facing the first electrode, and an organic layer between the first electrode and the second electrode and including an emission layer, wherein the organic layer includes a first compound and a second compound; the first compound is represented by one selected from Formulae 1-1 to 1-4, and does not include a nitrogen-containing heterocyclic group that includes *═N—*′ as a ring-forming moiety, and the second compound is represented by Formula 2:

公开(公告)号：US09905778B2

公开(公告)日：2018-02-27

申请号：US14706218

申请日：2015-05-07

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Myeongsuk Kim ,  Taekyung Kim ,  Jaeyong Lee

IPC: H01L51/00 ,  H01L51/50

CPC classification number: H01L51/0072 ,  H01L51/0052 ,  H01L51/0058 ,  H01L51/006 ,  H01L51/0061 ,  H01L51/0067 ,  H01L51/506 ,  H01L2251/308

Abstract: An organic light-emitting device, including a first electrode; a second electrode facing the first electrode; an emission layer between the first electrode and the second electrode; a hole transport region between the first electrode and the emission layer; and an electron transport region between the second electrode and the emission layer, the hole transport region including a compound represented by Formula 1 below and a compound represented by Formula 2 below:

公开(公告)号：US20170125698A1

公开(公告)日：2017-05-04

申请号：US15235027

申请日：2016-08-11

Applicant: Samsung Display Co., Ltd.

Inventor： Taekyung Kim ,  Minkyung Kim ,  Miehwa Park ,  Jaeyong Lee

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

CPC classification number: H01L51/0072 ,  C09K11/025 ,  C09K11/06 ,  C09K2211/1007 ,  C09K2211/1029 ,  C09K2211/185 ,  H01L51/0061 ,  H01L51/0071 ,  H01L51/0074 ,  H01L51/0085 ,  H01L51/5016 ,  H01L2251/5384

Abstract: An organic light-emitting device including a first electrode; a second electrode facing the first electrode; and an organic layer including an emission layer between the first electrode and the second electrode, the organic layer including a first compound and a second compound. The first compound may be represented by a structure similar to Formula 1-1, and the second compound may be represented by a structure similar to Formula 2-1, and may include 2 or more five-membered heterocycles.