公开(公告)号：US12178123B2

公开(公告)日：2024-12-24

申请号：US17179837

申请日：2021-02-19

Applicant: Samsung Display Co., LTD. ,  KYUSHU UNIVERSITY, NATIONAL UNIVERSITY CORPORATION

Inventor： Yuuki Miyazaki ,  Yuji Suzaki ,  In Seob Park ,  Takuma Yasuda ,  Jong Uk Kim ,  Hyukgi Min

IPC: H01L51/00 ,  H10K50/12 ,  H10K85/40 ,  H10K85/60

Abstract: An organic electroluminescence device exhibiting high light emission efficiency is provided, which includes a first electrode, a second electrode, and an emission layer disposed between the first electrode and the second electrode. The emission layer may include a compound represented by Formula 1.

公开(公告)号：US12219871B2

公开(公告)日：2025-02-04

申请号：US17391636

申请日：2021-08-02

Applicant: Samsung Display Co., Ltd.

Inventor： Keigo Hoshi ,  Tetsuji Hayano ,  Yuuki Miyazaki

IPC: H10K85/60 ,  H10K50/11 ,  H10K101/40

Abstract: Provided is a light emitting device including 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 at least one polycyclic compound represented by Formula 1 below, and may thus exhibit long life characteristics.

公开(公告)号：US11605788B2

公开(公告)日：2023-03-14

申请号：US16893984

申请日：2020-06-05

Applicant: Samsung Display Co., Ltd.

Inventor： Ryuhei Furue ,  Yuuki Miyazaki

IPC: H01L51/00 ,  H01L51/50

Abstract: An organic electroluminescence device of an embodiment includes a first electrode, a second electrode, and an emission layer between the first electrode and the second electrode, wherein the emission layer includes a polycyclic compound represented by Formula 1 and shows high emission efficiency and excellent color reproducibility.

公开(公告)号：US11800793B2

公开(公告)日：2023-10-24

申请号：US17091619

申请日：2020-11-06

Applicant: Samsung Display Co., Ltd.

Inventor： Hankyu Pak ,  Mun-ki Sim ,  Seokhwan Hwang ,  Junha Park ,  Jang Yeol Baek ,  Keigo Hoshi ,  Yuuki Miyazaki ,  Hyoyoung Lee ,  Minjung Jung ,  Sun Young Pak ,  Chanseok Oh

IPC: C07F5/02 ,  H10K85/60 ,  C09K11/06 ,  H10K50/11 ,  H10K50/16 ,  H10K50/17 ,  H10K101/10

CPC classification number: H10K85/631 ,  C07F5/027 ,  C09K11/06 ,  H10K85/636 ,  C09K2211/1007 ,  C09K2211/1018 ,  H10K50/11 ,  H10K50/16 ,  H10K50/171 ,  H10K85/6572 ,  H10K85/6574 ,  H10K2101/10

Abstract: An organic electroluminescence device includes a first electrode, an organic layer disposed on the first electrode, and a second electrode disposed on the organic layer, wherein the organic layer includes a polycyclic compound represented by Formula 1. The organic electroluminescence device may have high emission efficiency.

公开(公告)号：US11424417B2

公开(公告)日：2022-08-23

申请号：US16567389

申请日：2019-09-11

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Yoshimasa Fujita ,  Keigo Hoshi ,  Yuuki Miyazaki

IPC: H01L51/00 ,  C07D209/86 ,  C09K11/06 ,  H01L51/50 ,  H01L51/56

Abstract: An organic electroluminescence device includes a first electrode, a second electrode on the first electrode, and an emission layer between the first electrode and the second electrode. The emission layer may include a compound including a first phenyl group that is substituted with at least one cyano group and a second phenyl group that is substituted with five substituted or unsubstituted carbazole groups, the second phenyl group being directly bonded to the first phenyl group.

公开(公告)号：US10930858B2

公开(公告)日：2021-02-23

申请号：US15980270

申请日：2018-05-15

Applicant: Samsung Display Co., Ltd.

Inventor： Yuuki Miyazaki

IPC: H01L51/00 ,  H01L51/50

Abstract: A nitrogen-containing compound which improves emission efficiency, and an organic electroluminescence device including the same are provided. The nitrogen-containing compound according to the present disclosure is represented by Formula 1: When the nitrogen-containing compound has an appropriate or suitable cyclic molecular structure, a small ΔEST value may be obtained, and an organic electroluminescence device including the nitrogen-containing compound in the emission layer may exhibit thermally activated delayed fluorescence emission and have improved external quantum efficiency.

公开(公告)号：US12114566B2

公开(公告)日：2024-10-08

申请号：US17332481

申请日：2021-05-27

Applicant: Samsung Display Co., Ltd.

Inventor： Yuuki Miyazaki

IPC: H10K85/40 ,  H10K85/60 ,  H10K50/11 ,  H10K101/10

CPC classification number: H10K85/6572 ,  H10K85/40 ,  H10K85/636 ,  H10K85/6574 ,  H10K85/6576 ,  H10K50/11 ,  H10K2101/10

Abstract: A polycyclic compound of an embodiment is represented by Formula 1, which is defined in the disclosure. A light emitting device of 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 the polycyclic compound represented by Formula 1, and the light emitting device may show improved device characteristics.

公开(公告)号：US11271169B2

公开(公告)日：2022-03-08

申请号：US15969945

申请日：2018-05-03

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Yuuki Miyazaki

IPC: H01L51/00 ,  C07D401/14 ,  C09K11/06 ,  H01L51/56 ,  H01L51/50

Abstract: A nitrogen-containing compound and an organic electroluminescence device, the compound being represented by the following Formula 1:

公开(公告)号：US20190131534A1

公开(公告)日：2019-05-02

申请号：US15980270

申请日：2018-05-15

Applicant: Samsung Display Co., Ltd.

Inventor： Yuuki Miyazaki

IPC: H01L51/00 ,  C07D487/08 ,  C09K11/06 ,  C07F7/08

Abstract: A nitrogen-containing compound which improves emission efficiency, and an organic electroluminescence device including the same are provided. The nitrogen-containing compound according to the present disclosure is represented by Formula 1: When the nitrogen-containing compound has an appropriate or suitable cyclic molecular structure, a small ΔEST value may be obtained, and an organic electroluminescence device including the nitrogen-containing compound in the emission layer may exhibit thermally activated delayed fluorescence emission and have improved external quantum efficiency.

公开(公告)号：US12114564B2

公开(公告)日：2024-10-08

申请号：US17124170

申请日：2020-12-16

Applicant: Samsung Display Co., Ltd.

Inventor： Yuuki Miyazaki ,  Ryuhei Furue

IPC: H10K85/60 ,  H10K50/11

CPC classification number: H10K85/654 ,  H10K85/6572 ,  H10K50/11

Abstract: An organic electroluminescence device of an embodiment of the present disclosure includes a first electrode, a hole transport region disposed on the first electrode, an emission layer disposed on the hole transport region, an electron transport region disposed on the emission layer, and a second electrode disposed on the electron transport region, wherein the emission layer may include a nitrogen-containing compound represented by Formula 1, thereby exhibiting a long service life. In Formula 1, at least one of A1 to A5 is represented by Formula 2, and at least another one of A1 to A5 is represented by Formula 3: