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.

公开(公告)号：US20250008839A1

公开(公告)日：2025-01-02

申请号：US18737752

申请日：2024-06-07

Applicant: Samsung Display Co., Ltd.

Inventor： CHANSEOK OH ,  TAEIL KIM ,  SUN YOUNG PAK ,  JUNHA PARK ,  MinJae SUNG ,  MUN-KI SIM ,  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 on the first electrode, and an emission layer between the first electrode and the second electrode is provided. The emission layer includes a polycyclic compound having two N atoms and a B atom fused to three aromatic rings, and at least one sterically bulky substituent. The shape of the polycyclic compound may reduce intermolecular interactions and provide material and chemical stability.

公开(公告)号：US20240407263A1

公开(公告)日：2024-12-05

申请号：US18640976

申请日：2024-04-19

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 ,  H10K101/00

Abstract: A light-emitting element including a first electrode, a second electrode on the first electrode, and an emission layer between the first electrode and the second electrode is provided. The light-emitting layer includes a fused polycyclic compound having a pentacyclic core that includes three aromatic rings fused by one boron and two nitrogen atoms. A first substituent that excludes hydrogen and deuterium is connected to the pentacyclic core at an ortho-position of the boron.

公开(公告)号：US20240180033A1

公开(公告)日：2024-05-30

申请号：US18347814

申请日：2023-07-06

Applicant: Samsung Display Co., Ltd.

Inventor： CHANSEOK OH ,  SUN YOUNG PAK ,  JUNHA PARK ,  Kyoung SUNWOO ,  MUN-KI SIM

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

CPC classification number: H10K85/658 ,  C07F5/027 ,  C09K11/06 ,  H10K50/12

Abstract: Embodiments provide a light emitting device that 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 at least one functional layer includes a first compound represented by Formula 1, and at least one of a second compound represented by Formula HT or a third compound represented by Formula ET, thereby exhibiting low voltage, high efficiency, and long service life characteristics. Formulas 1, HT, and ET are each explained in the specification.

公开(公告)号：US20240130235A1

公开(公告)日：2024-04-18

申请号：US18369053

申请日：2023-09-15

Applicant: Samsung Display Co., Ltd.

Inventor： CHANSEOK OH ,  TAEIL KIM ,  JANG YEOL BAEK ,  MINJAE SUNG ,  MINJUNG JUNG ,  SEONHYOUNG HUR

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

CPC classification number: H10K85/658 ,  C07F5/027 ,  C09K11/06 ,  H10K50/12

Abstract: A light emitting element 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 may include a first compound and at least one of a second compound or a third compound. The first compound may be represented by Formula 1, the second compound may be represented by Formula HT-1, and the third compound may be represented by Formula ET-1. Accordingly, a light emitting element of an embodiment may exhibit excellent or suitable light efficiency.

公开(公告)号：US20230309401A1

公开(公告)日：2023-09-28

申请号：US18089887

申请日：2022-12-28

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: H10K85/60 ,  H10K85/30 ,  C09K11/06 ,  H10K85/40

CPC classification number: H10K85/658 ,  H10K85/6572 ,  H10K85/654 ,  H10K85/346 ,  C09K11/06 ,  H10K85/40 ,  H10K50/12

Abstract: Embodiments provide a light emitting device that includes a first electrode, a second electrode facing the first electrode, and an emission layer disposed between the first electrode and the second electrode. The emission layer includes: a first compound represented by Formula 1; and at least one of a second compound, a third compound 3, and a fourth compound, thereby showing improved emission efficiency and device life.

公开(公告)号：US20230270006A1

公开(公告)日：2023-08-24

申请号：US18111495

申请日：2023-02-17

Applicant: Samsung Display Co., Ltd.

Inventor： CHANSEOK OH ,  TAEIL KIM ,  JUNHA PARK ,  JANG YEOL BAEK ,  MinJae SUNG ,  MINJUNG JUNG

IPC: H10K85/60 ,  C07F5/02 ,  H10K50/11 ,  H10K85/30

CPC classification number: H10K85/658 ,  H10K85/6572 ,  H10K85/652 ,  C07F5/027 ,  H10K85/631 ,  H10K85/636 ,  H10K50/11 ,  H10K85/346 ,  C07B2200/05

Abstract: A light emitting element (that includes a first electrode, a second electrode, and an emission layer which is between the first electrode and the second electrode and includes a compound represented by Formula 1) is provided. The light emitting element concurrently (e.g., simultaneously) exhibits a high efficiency and a long service life characteristic.

公开(公告)号：US20230141820A1

公开(公告)日：2023-05-11

申请号：US17862923

申请日：2022-07-12

Applicant: Samsung Display Co., Ltd.

Inventor： MI EUN JUN ,  SERAN KIM ,  CHANSEOK OH

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

CPC classification number: H01L51/008 ,  H01L51/0075 ,  H01L51/0067 ,  H01L51/0087 ,  H01L51/006 ,  C07F5/027 ,  C09K11/06 ,  C09K2211/1014 ,  H01L51/5028

Abstract: A light emitting element according to 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 a first compound, and at least one of a second compound, a third compound, and a fourth compound. The first compound is represented by Formula 1, the second compound is represented by Formula HT-1, the third compound is represented by Formula ET-1, and the fourth compound is represented by Formula M-b. Accordingly, the light emitting element has decreased driving voltage and improved efficiency.

公开(公告)号：US20230130170A1

公开(公告)日：2023-04-27

申请号：US17937762

申请日：2022-10-03

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Hyoyoung LEE ,  Soo-Byung KO ,  JUNHA PARK ,  Han Kyu PAK ,  Jang Yeol BAEK ,  Mun-Ki SIM ,  CHANSEOK OH

IPC: H01L51/00 ,  C07F5/02 ,  H01L51/50

Abstract: An light emitting device of the present embodiments includes oppositely disposed first electrode and second electrode, and a plurality of organic layers disposed 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: