公开(公告)号：US20210143331A1

公开(公告)日：2021-05-13

申请号：US16927546

申请日：2020-07-13

Applicant: Samsung Display Co., Ltd.

Inventor： Hirokazu KUWABARA ,  Ryuhei FURUE

IPC: H01L51/00

Abstract: An organic electroluminescence device of an embodiment of the present disclosure 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, wherein the emission layer may include a polycyclic compound represented by Formula 1, thereby exhibiting high luminous efficiency: wherein at least one selected from R1 to R3 is represented by Formula 2:

公开(公告)号：US20210126195A1

公开(公告)日：2021-04-29

申请号：US16926091

申请日：2020-07-10

Applicant: Samsung Display Co., Ltd.

Inventor： Hirokazu KUWABARA ,  Ryuhei FURUE

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

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, an electron transport region disposed on the emission layer, an electron transport region provided on the emission layer, and a second electrode disposed on the electron transport region, wherein the emission layer includes a polycyclic compound represented by Formula 1 to obtain high luminous efficiency:

公开(公告)号：US20240292751A1

公开(公告)日：2024-08-29

申请号：US18490017

申请日：2023-10-19

Applicant: Samsung Display Co., Ltd.

Inventor： Ryuhei FURUE ,  Hirokazu KUWABARA

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

CPC classification number: H10K85/658 ,  C07F5/027 ,  C09K11/06 ,  C09K2211/1018 ,  H10K50/12 ,  H10K2101/90

Abstract: Embodiments provide a light emitting element that 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 represented by Formula 1, which is explained in the specification.

公开(公告)号：US20240260467A1

公开(公告)日：2024-08-01

申请号：US18530901

申请日：2023-12-06

Applicant: Samsung Display Co., Ltd.

Inventor： Hirokazu KUWABARA ,  Keigo HOSHI ,  Ryuhei FURUE

IPC: H10K85/60 ,  C07B59/00 ,  C09K11/06 ,  H10K85/30 ,  H10K85/40

CPC classification number: H10K85/658 ,  C07B59/004 ,  C09K11/06 ,  H10K85/346 ,  H10K85/40 ,  H10K85/622 ,  H10K85/623 ,  H10K85/631 ,  H10K85/654 ,  H10K85/6572 ,  H10K2101/20

Abstract: Embodiments provide a light emitting element that 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 polycyclic compound represented by Formula 1, which is explained in the specification.

公开(公告)号：US20240138263A1

公开(公告)日：2024-04-25

申请号：US18469108

申请日：2023-09-18

Applicant: Samsung Display Co., LTD.

Inventor： Makoto YAMAMOTO ,  Keigo HOSHI ,  Yuji SUZAKI ,  Hirokazu KUWABARA ,  Nobutaka AKASHI ,  Ryuhei FURUE ,  Toshiyuki MATSUURA ,  Yoshiro SUGITA ,  Yuma AOKI ,  Yuuki MIYAZAKI

IPC: H10K85/60 ,  C09K11/06

CPC classification number: H10K85/658 ,  C09K11/06 ,  H10K85/631 ,  H10K85/6572 ,  H10K85/6574 ,  H10K85/6576 ,  H10K2101/20

Abstract: A light emitting element of one or more embodiments includes a first electrode, a second electrode oppositely to the first electrode, and an emission layer between the first electrode and the second electrode. The light emitting element of one or more embodiments includes a polycyclic compound represented by a specific chemical structure in the emission layer, thereby showing improved emission efficiency and life characteristics.

公开(公告)号：US20230263047A1

公开(公告)日：2023-08-17

申请号：US17988637

申请日：2022-11-16

Applicant: Samsung Display Co., Ltd.

Inventor： Yoshiro SUGITA ,  Keigo HOSHI ,  Ryuhei FURUE

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

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

Abstract: A light emitting element includes a first electrode, a second electrode, and an emission layer disposed between the first electrode and the second electrode and including a polycyclic compound represented by Formula 1 below, thereby showing high emission efficiency. The substituents of Formula 1 are the same as defined in the detailed descriptions.

公开(公告)号：US20230225208A1

公开(公告)日：2023-07-13

申请号：US18146164

申请日：2022-12-23

Applicant: Samsung Display Co., Ltd.

Inventor： Keigo HOSHI ,  Ryuhei FURUE ,  Yoshiro SUGITA

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

CPC classification number: H10K85/658 ,  H10K50/11 ,  H10K85/6572 ,  H10K85/6574 ,  H10K85/6576 ,  H10K85/631 ,  H10K85/657 ,  C07F5/027 ,  H10K2101/20

Abstract: Provided is a light emitting element includes a polycyclic compound in which an electron donor substituent, which may increase the photoluminescence quantum yield (PLQY) and oscillator strength (f), is introduced at the para-position of a boron atom, thereby exhibiting high efficiency and long service life characteristics.

公开(公告)号：US20230219981A1

公开(公告)日：2023-07-13

申请号：US18074777

申请日：2022-12-05

Applicant: Samsung Display Co., Ltd.

Inventor： Hirokazu KUWABARA ,  Ryuhei FURUE ,  Yuma AOKI ,  Yuuki MIYAZAKI

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

CPC classification number: C07F5/027 ,  H01L51/008 ,  H01L51/0072 ,  H01L51/0054 ,  H01L51/0073 ,  H01L51/0061 ,  H01L51/5012 ,  C07B2200/05

Abstract: Embodiments provide a polycyclic compound and a light emitting element that includes the polycyclic compound. The light emitting element includes a first electrode, a second electrode disposed on 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 the polycyclic compound, which is represented by Formula 1. Formula 1 is defined in the specification. The light emitting element exhibits a long service life.

公开(公告)号：US20230057142A1

公开(公告)日：2023-02-23

申请号：US17675482

申请日：2022-02-18

Applicant: Samsung Display Co., Ltd.

Inventor： Yuji SUZAKI ,  Hirokazu KUWABARA ,  Ryuhei FURUE ,  Tetuji HAYANO

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

Abstract: 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 may include a polycyclic compound of an embodiment represented by Formula 1. The light emitting device including the polycyclic compound of an embodiment may show improved efficiency and device life.

公开(公告)号：US20220223790A1

公开(公告)日：2022-07-14

申请号：US17459393

申请日：2021-08-27

Applicant: Samsung Display Co., Ltd.

Inventor： Yuji SUZAKI ,  Hirokazu KUWABARA ,  Keigo HOSHI ,  Ryuhei FURUE ,  Tetsuji HAYANO ,  Yuuki MIYAZAKI

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

Abstract: Provided is an organic electroluminescence device including 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 emission layer includes a polycyclic compound represented by Formula 1, and thus the organic electroluminescence device exhibits high luminous efficiency.