公开(公告)号：US20230413663A1

公开(公告)日：2023-12-21

申请号：US18312457

申请日：2023-05-04

Applicant: Samsung Display Co., Ltd.

Inventor： MINJI KIM ,  HANKYU PAK ,  BYEONGWOOK YOO ,  JEONGMIN LEE ,  SOHEE JO

IPC: H10K85/60 ,  C07C211/61

CPC classification number: H10K85/633 ,  C07C211/61 ,  H10K85/626 ,  C07C2602/10 ,  C07C2603/18 ,  C07C2603/40 ,  C07C2603/74 ,  H10K50/156

Abstract: A light emitting element of one or more embodiments may include a first electrode, a second electrode provided on the first electrode, and at least one functional layer provided between the first electrode and the second electrode. The at least one functional layer may include an amine compound of one or more embodiments, represented by Formula 1. Accordingly, the light emitting element of one or more embodiments may show a low driving voltage, high luminance, high efficiency and long-life characteristics.

公开(公告)号：US20230363261A1

公开(公告)日：2023-11-09

申请号：US18347995

申请日：2023-07-06

Applicant: Samsung Display Co., Ltd.

Inventor： BORA LEE ,  HYOMIN KO ,  ILLHUN CHO ,  EUNJAE JEONG ,  MINJI KIM ,  SOHEE JO ,  DONGJUN KIM ,  HANKYU PAK ,  SANGHYUN HAN

IPC: H10K85/60 ,  C07C211/54 ,  C07C211/61 ,  C07D209/88 ,  C07D307/91 ,  C07D333/76 ,  H10K50/15 ,  H10K50/818 ,  H10K50/828 ,  H10K50/858

CPC classification number: H10K85/633 ,  C07C211/54 ,  C07C211/61 ,  C07D209/88 ,  C07D307/91 ,  C07D333/76 ,  H10K50/156 ,  H10K50/818 ,  H10K50/828 ,  H10K50/858 ,  H10K85/636 ,  C07C2603/74 ,  C07C2603/18 ,  C07C2601/14 ,  H10K85/615 ,  H10K85/626 ,  H10K85/6572 ,  H10K85/6574 ,  H10K85/6576 ,  H10K2102/351

Abstract: A light emitting diode of an embodiment 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. The hole transport region includes a first hole transport layer disposed adjacent to the first electrode and having a first refractive index, a second hole transport layer disposed adjacent to the emission layer and having a second refractive index, and a third hole transport layer disposed between the first hole transport layer and the second hole transport layer and having a third refractive index which is greater than each of the first refractive index and the second refractive index, thereby showing high light extraction efficiency and high emission efficiency properties.

公开(公告)号：US20230142412A1

公开(公告)日：2023-05-11

申请号：US17881421

申请日：2022-08-04

Applicant: Samsung Display Co., Ltd.

Inventor： Chaeyeong KIM ,  DONGJUN KIM ,  HANKYU PAK ,  BYEONGWOOK YOO ,  SEOWON CHO ,  SOHEE JO

IPC: H01L51/00 ,  C07F7/08

CPC classification number: H01L51/0094 ,  C07F7/081 ,  C07F7/0812 ,  H01L51/5056

Abstract: A light emitting element including a first electrode, a second electrode on the first electrode, and at least one functional layer between the first electrode and the second electrode is provided. The at least one functional layer may include an amine compound represented by Formula 1. Accordingly, the light emitting element may exhibit a long service life characteristic. In addition, the light emitting element may exhibit characteristics in which the driving voltage is reduced, and the brightness and efficiency are improved.

公开(公告)号：US20220131092A1

公开(公告)日：2022-04-28

申请号：US17351049

申请日：2021-06-17

Applicant: Samsung Display Co., Ltd.

Inventor： EUNJAE JEONG ,  DONGJUN KIM ,  MINJI KIM ,  HANKYU PAK ,  SOHEE JO ,  SANGHYUN HAN

IPC: H01L51/00

Abstract: An organic electroluminescence device includes a first electrode and a second electrode, and a plurality of organic layers disposed between the first electrode and the second electrode, wherein at least one organic layer among the plurality of organic layers includes an amine compound represented by Formula 1, and thereby exhibits improved emission efficiency.

公开(公告)号：US20220123213A1

公开(公告)日：2022-04-21

申请号：US17445815

申请日：2021-08-24

Applicant: Samsung Display Co., Ltd.

Inventor： HANKYU PAK ,  EUNJAE JEONG ,  SANGHYUN HAN ,  DONGJUN KIM ,  MINJI KIM ,  SOHEE JO

IPC: H01L51/00

Abstract: An organic electroluminescence device includes a first electrode, a hole transport region on the first electrode, an emission layer on the hole transport region, an electron transport region on the emission layer, and a second electrode on the electron transport region. The hole transport region may include an amine compound represented by Formula 1, thereby exhibiting high luminous efficiency:

公开(公告)号：US20210234098A1

公开(公告)日：2021-07-29

申请号：US17153310

申请日：2021-01-20

Applicant: Samsung Display Co., Ltd.

Inventor： BORA LEE ,  HYOMIN KO ,  ILLHUN CHO ,  EUNJAE JEONG ,  MINJI KIM ,  SOHEE JO ,  DONGJUN KIM ,  HANKYU PAK ,  SANGHYUN HAN

IPC: H01L51/00 ,  H01L51/52 ,  H01L51/50 ,  C07C211/54 ,  C07D307/91 ,  C07C211/61 ,  C07D209/88 ,  C07D333/76

Abstract: A light emitting diode of an embodiment 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. The hole transport region includes a first hole transport layer disposed adjacent to the first electrode and having a first refractive index, a second hole transport layer disposed adjacent to the emission layer and having a second refractive index, and a third hole transport layer disposed between the first hole transport layer and the second hole transport layer and having a third refractive index which is greater than each of the first refractive index and the second refractive index, thereby showing high light extraction efficiency and high emission efficiency properties.