公开(公告)号：US20240206337A1

公开(公告)日：2024-06-20

申请号：US18362836

申请日：2023-07-31

Applicant: Samsung Display Co., LTD.

Inventor： MUN-KI SIM ,  MINJUNG JUNG ,  TAEIL KIM ,  SUN YOUNG PAK ,  MinJae SUNG ,  CHANSEOK OH ,  Seonhyoung HUR

IPC: H10K85/60 ,  C07F5/02 ,  H10K50/12 ,  H10K85/30

CPC classification number: H10K85/658 ,  C07F5/02 ,  H10K50/12 ,  H10K85/342 ,  H10K85/346

Abstract: A light emitting element of an embodiment may include 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 may include a first compound and at least one among second to fourth compounds. The first compound may be represented by Formula 1, the second compound may be represented by Formula HT-1, the third compound may be represented by Formula ET-1, and the fourth compound may be represented by Formula M-b. Accordingly, the light emitting element of an embodiment may show a low driving voltage, high efficiency and long-life characteristics.

公开(公告)号：US20230232715A1

公开(公告)日：2023-07-20

申请号：US17992745

申请日：2022-11-22

Applicant: Samsung Display Co., Ltd.

Inventor： Kyoung SUNWOO ,  TAEIL KIM ,  JUNHA PARK ,  MinJae SUNG ,  MUN-KI SIM ,  MINJUNG JUNG

IPC: H10K85/60 ,  H10K85/30 ,  H10K50/15

CPC classification number: H01L51/0072 ,  H01L51/0073 ,  H01L51/008 ,  H01L51/0074 ,  H01L51/5056

Abstract: A light emitting device that includes a first electrode, a second electrode facing the first electrode, and an emission layer between the first electrode and the second electrode is provided. The emission layer includes a first compound represented by Formula 1, and at least one of a second compound represented Formula H-1, a third compound represented Formula H-2, or a fourth compound represented Formula D-2, thereby exhibiting improved luminous efficiency characteristics.

公开(公告)号：US20230217804A1

公开(公告)日：2023-07-06

申请号：US17887238

申请日：2022-08-12

Applicant: Samsung Display Co., Ltd.

Inventor： TAEIL KIM ,  SUN YOUNG PAK ,  JUNHA PARK ,  JANG YEOL BAEK ,  Kyoung SUNWOO ,  MUN-KI SIM ,  CHANSEOK OH ,  MINJUNG JUNG

IPC: H01L51/00 ,  C07F5/02 ,  C09K11/06

CPC classification number: H01L51/008 ,  C07F5/027 ,  C09K11/06 ,  H01L51/5012

Abstract: A light emitting element that includes a first compound represented by a specific chemical formula in which an ortho-type or kind penta-phenyl group is bonded to a fused polycyclic compound including at least one boron atom and a heteroatom is provided. The light emitting element has a long-lifetime.

公开(公告)号：US20230132112A1

公开(公告)日：2023-04-27

申请号：US17825408

申请日：2022-05-26

Applicant: Samsung Display Co., Ltd.

Inventor： MUN-KI SIM ,  TAEIL KIM ,  SUN YOUNG PAK ,  JUNHA PARK ,  JANG YEOL BAEK ,  Kyoung SUNWOO ,  CHANSEOK OH ,  MINJUNG JUNG

IPC: C07F5/02 ,  C07D209/84 ,  C07D405/14 ,  C07D409/14 ,  C07D251/24 ,  C07F7/08 ,  C07D403/04 ,  C07D403/14 ,  C07F15/00 ,  H01L51/00

Abstract: A light emitting device of an embodiment includes a first electrode, a second electrode oppositely disposed to the first electrode, and an emission layer disposed between the first electrode and the second electrode. The emission layer includes a first host represented by Formula H-1, a second host represented by Formula H-2, and a first dopant represented by Formula 1, wherein Formulas H-1, H-2, and 1 are explained in the specification. The light emitting device shows improved emission efficiency properties.

公开(公告)号：US20220263026A1

公开(公告)日：2022-08-18

申请号：US17543385

申请日：2021-12-06

Applicant: Samsung Display Co., Ltd.

Inventor： CHANSEOK OH ,  TAEIL KIM ,  SUN YOUNG PAK ,  JUNHA PARK ,  JANG YEOL BAEK ,  Kyoung SUNWOO ,  MUN-KI SIM ,  MINJUNG JUNG

IPC: H01L51/00

Abstract: A light emitting device according to an embodiment includes a first electrode and a second electrode facing the first electrode, and a plurality of organic layers between the first electrode and the second electrode, wherein at least one among the plurality of organic layers includes a fused polycyclic compound represented by Formula 1 below, thereby showing improved emission efficiency.

公开(公告)号：US20220181557A1

公开(公告)日：2022-06-09

申请号：US17445164

申请日：2021-08-16

Applicant: Samsung Display Co., Ltd.

Inventor： MINJUNG JUNG ,  SERAN KIM ,  TAEIL KIM ,  SUN YOUNG PAK ,  JUNHA PARK ,  JANG YEOL BAEK ,  KYOUNG SUNWOO ,  MUN-KI SIM ,  CHANSEOK OH

IPC: H01L51/00

Abstract: An organic electroluminescence device includes a first electrode, a hole transport region disposed on the first electrode, an emission layer disposed on the hole transport region, and an electron transport region disposed on the emission layer, where the emission layer includes a polycyclic compound represented by Formula 1 to thereby exhibit high luminous efficiency:

公开(公告)号：US20220149292A1

公开(公告)日：2022-05-12

申请号：US17443429

申请日：2021-07-26

Applicant: Samsung Display Co., Ltd.

Inventor： TAEIL KIM ,  JUNHA PARK ,  SUN YOUNG PAK ,  JANG YEOL BAEK ,  Kyoung SUNWOO ,  MUN-KI SIM ,  CHANSEOK OH ,  MINJUNG JUNG

IPC: H01L51/00

Abstract: A light emitting device includes a first electrode, a second electrode, and at least one emission layer between the first electrode and the second electrode and includes at least one polycyclic compound represented by Formula 1 below, thereby exhibiting long service life characteristics. In Formula 1, the substituents are the same as defined in the detailed description.

公开(公告)号：US20250143162A1

公开(公告)日：2025-05-01

申请号：US19005805

申请日：2024-12-30

Applicant: Samsung Display Co., LTD.

Inventor： JUNHA PARK ,  TAEIL KIM ,  SUN YOUNG PAK ,  JANG YEOL BAEK ,  Kyoung SUNWOO ,  MUN-KI SIM ,  CHANSEOK OH ,  MINJUNG JUNG

IPC: H10K85/30 ,  C07F5/02 ,  C09K11/06 ,  H10K50/11 ,  H10K101/10

Abstract: Provided is a light emitting device including a first electrode, a second electrode, and an emission layer between the first electrode and the second electrode, and the emission layer may include a condensed cyclic compound represented by Formula 1 below, thereby exhibiting high luminous efficiency and improved service life characteristics.

公开(公告)号：US20250127055A1

公开(公告)日：2025-04-17

申请号：US18736353

申请日：2024-06-06

Applicant: Samsung Display Co., Ltd.

Inventor： TAEIL KIM ,  SUN YOUNG PAK ,  JUNHA PARK ,  MinJae SUNG ,  MUN-KI SIM ,  CHANSEOK OH ,  MINJUNG JUNG ,  Giwoong HAN ,  Seonhyoung HUR

IPC: H10K85/60 ,  C07F5/02 ,  C09K11/06 ,  H10K50/12

Abstract: A light-emitting element including a first electrode, a second electrode provided on the first electrode, and an emission layer provided between the first electrode and the second electrode, a display device and a fused polycyclic compound are provided. The emission layer includes a fused polycyclic compound that may be a dopant material (e.g., thermally activated delayed fluorescence dopant). The emission layer may further include second to fourth compounds.
The fused polycyclic compound has a pentacyclic core that includes three aromatic rings fused by one boron and two nitrogen atoms. At least one substituent on the pentacyclic core is an electron-donating, tricyclic fused ring and is connected at a para-position with respect to boron. Due to steric demand the molecular shape of the fused polycyclic compound becomes twisted, which results in modulation of the difference between singlet and triplet energy states and the rate of reverse inter-system crossing of the fused polycyclic compound.

公开(公告)号：US20250072284A1

公开(公告)日：2025-02-27

申请号：US18766504

申请日：2024-07-08

Applicant: Samsung Display Co., Ltd.

Inventor： CHANSEOK OH ,  TAEIL KIM ,  SUN YOUNG PAK ,  MinJae SUNG ,  MUN-KI SIM ,  Giwoong HAN

IPC: H10K85/60 ,  C07B59/00 ,  C09K11/06 ,  H10K101/20

Abstract: A light emitting element including a first electrode, a second electrode facing the first electrode, and a functional layer provided between the first electrode and the second electrode is provided. The functional layer includes a fused polycyclic compound represented by Formula 1 that may function as a dopant material. The fused ring core includes three aromatic rings connected to at least three heteroatoms, and includes a first linker connected to at least two substituents such as a polycyclic heteroaryl group and an electron-withdrawing group.