公开(公告)号：US20220407028A1

公开(公告)日：2022-12-22

申请号：US17874578

申请日：2022-07-27

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: H01L51/50 ,  C09K11/06 ,  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.

公开(公告)号：US20220059771A1

公开(公告)日：2022-02-24

申请号：US17232773

申请日：2021-04-16

Applicant: Samsung Display Co., Ltd.

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

IPC: H01L51/00 ,  C07D209/88 ,  C09K11/06 ,  C07D409/12

Abstract: An organic electroluminescence device includes a first electrode and a second electrode which face each other, and a plurality of organic layers between the first electrode and the second electrode, where at least one of the organic layers includes an amine compound represented by Formula 1, and the organic electroluminescence device may exhibit improved luminous efficiency:

公开(公告)号：US20220020930A1

公开(公告)日：2022-01-20

申请号：US17373336

申请日：2021-07-12

Applicant: Samsung Display Co., Ltd.

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

IPC: H01L51/00

Abstract: An organic electroluminescence device includes a first electrode, a hole transport region on the first electrode, a light-emitting layer on the hole transport region, an electron transport region on the light-emitting layer, and a second electrode on the electron transport region. The hole transport region includes an amine compound represented by Formula 1.

公开(公告)号：US20240090320A1

公开(公告)日：2024-03-14

申请号：US18319199

申请日：2023-05-17

Applicant: Samsung Display Co., LTD.

Inventor： MINJI KIM ,  HANKYU PAK ,  HYUNBIN PARK ,  BYEONGWOOK YOO ,  JEONG MIN LEE ,  SOHEE JO

IPC: H10K85/60 ,  H10K50/11 ,  H10K50/15

CPC classification number: H10K85/633 ,  H10K50/11 ,  H10K50/15

Abstract: The present disclosure relates to a light emitting element and an amine compound for the light emitting element, and the light emitting element of an embodiment includes a first electrode, a second electrode on the first electrode, and at least one functional layer between the first electrode and the second electrode, wherein an amine compound represented by Formula 1 is included in the at least one functional layer, thereby improving emission efficiency and element life of the light emitting element.

公开(公告)号：US20240057473A1

公开(公告)日：2024-02-15

申请号：US18349010

申请日：2023-07-07

Applicant: Samsung Display Co., Ltd.

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

IPC: H10K85/60 ,  C07C211/61 ,  C09K11/06

CPC classification number: H10K85/633 ,  C07C211/61 ,  C09K11/06 ,  H10K50/156

Abstract: A light emitting element of one or more embodiments includes 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, wherein the functional layer includes an amine compound including a spiro-bonded linker of two hydrocarbon rings and two amine groups connected with the linker. The light emitting element may have improved emission efficiency and element life.

公开(公告)号：US20220407016A1

公开(公告)日：2022-12-22

申请号：US17742081

申请日：2022-05-11

Applicant: Samsung Display Co., Ltd.

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

IPC: H01L51/00 ,  C07D209/88

Abstract: A luminescence device 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 contains a nitrogen-containing compound represented by Formula 1, and thus, the luminescence device may exhibit long lifespan and high efficiency. The substituents are the same as described in the detailed descriptions.

公开(公告)号：US20220199910A1

公开(公告)日：2022-06-23

申请号：US17445484

申请日：2021-08-19

Applicant: Samsung Display Co., Ltd.

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

IPC: H01L51/00 ,  C07D405/12 ,  C07D409/12 ,  C07F7/08

Abstract: A light-emitting diode may include a first electrode, a second electrode, and at least one functional layer disposed between the first electrode and the second electrode, the at least one functional layer including an amine compound represented by Formula 1. The light-emitting diode may exhibit high luminous efficiency properties and improved lifetime properties.

公开(公告)号：US20250057039A1

公开(公告)日：2025-02-13

申请号：US18629854

申请日：2024-04-08

Applicant: Samsung Display Co., Ltd.

Inventor： DONGJUN KIM ,  BEOMJOON KIM ,  HANKYU PAK ,  HYUNBIN PARK ,  JINYOUNG YUN ,  HAN NA CHA ,  SANGHYUN HAN

IPC: H10K85/60 ,  C07F9/6521 ,  C09K11/06 ,  H10K50/16 ,  H10K85/30

Abstract: A light emitting element including a first electrode, a second electrode on the first electrode, and at least one functional layer is provided. The functional layer includes a compound having two phenylene groups connected to a cycloalkyl group, and also includes a phosphine oxide group and a triazine group. The compound may be between the first electrode and the second electrode.

公开(公告)号：US20240431134A1

公开(公告)日：2024-12-26

申请号：US18632518

申请日：2024-04-11

Applicant: Samsung Display Co., Ltd.

Inventor： DONGJUN KIM ,  BEOMJOON KIM ,  HANKYU PAK ,  HYUNBIN PARK ,  JINYOUNG YUN ,  HAN NA CHA ,  SANGHYUN HAN

IPC: H10K50/16 ,  H10K85/60

Abstract: Embodiments provide a nitrogen-containing compound and a light emitting element. The light emitting element includes a first electrode, a second electrode facing the first electrode, and at least one functional layer disposed between the first electrode and the second electrode, wherein the functional layer includes the nitrogen-containing compound. The nitrogen-containing compound is represented by Formula 1, which is explained in the specification:

公开(公告)号：US20240196639A1

公开(公告)日：2024-06-13

申请号：US18229115

申请日：2023-08-01

Applicant: Samsung Display Co., Ltd.

Inventor： MINJI KIM ,  HANKYU PAK ,  HYUNBIN PARK ,  BYEONGWOOK YOO ,  Jeong Min LEE ,  SOHEE JO

IPC: H10K50/15 ,  H10K85/60

CPC classification number: H10K50/15 ,  H10K85/633

Abstract: A light emitting element includes a first electrode, a second electrode on the first electrode, an emission layer between the first electrode and the second electrode, and a hole transport region between the first electrode and the emission layer and including an amine compound represented by Formula 1, where at least one selected from R12, R23, and R34 is a substituted or unsubstituted methyl group.