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公开(公告)号：US20240260292A1
公开(公告)日：2024-08-01
申请号：US18529142
申请日：2023-12-05
Applicant: Samsung Display Co., Ltd.
Inventor： Hirokazu KUWABARA , Keigo HOSHI , Ryuhei FURUE
CPC classification number: H10K50/11 , C07F5/02 , C09K11/06 , H10K85/346 , H10K85/658 , C07B2200/05
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, wherein the emission layer includes a compound represented by Formula 1, thereby exhibiting long service life characteristics. Formula 1 is explained in the specification.
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2.发明申请公开(公告)号：US20210313521A1
公开(公告)日：2021-10-07
申请号：US17085124
申请日：2020-10-30
Applicant: Samsung Display Co., Ltd.
Inventor： Ryuhei FURUE , Hirokazu KUWABARA
IPC: H01L51/00
Abstract: An organic electroluminescence device includes a first electrode, a second electrode, and an emission layer disposed between the first electrode and the second electrode, wherein the emission layer includes a polycyclic compound having a fused ring system and represented by Formula 1 to achieve high efficiency and improved efficiency drop characteristics in an emission wavelength range:
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公开(公告)号：US20210126202A1
公开(公告)日：2021-04-29
申请号：US16928610
申请日：2020-07-14
Applicant: Samsung Display Co., Ltd.
Inventor： Ryuhei FURUE , Hirokazu KUWABARA , Nobutaka AKASHI
IPC: H01L51/00
Abstract: An organic electroluminescence device including a first electrode, a second electrode, and an emission layer between the first electrode and the second electrode, wherein the emission layer includes a compound represented by Formula 1 to achieve high efficiency and an improved efficiency drop in a deep blue emission wavelength region:
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公开(公告)号：US20230143071A1
公开(公告)日：2023-05-11
申请号：US17815120
申请日：2022-07-26
Applicant: Samsung Display Co., Ltd.
Inventor： Hirokazu KUWABARA , Ryuhei FURUE , Yuma AOKI , Yuuki MIYAZAKI
CPC classification number: C07F5/027 , H01L51/008 , H01L51/0071 , H01L51/0072 , H01L51/0074 , H01L51/0059 , H01L51/006 , H01L51/0067 , H01L51/5024 , C07B2200/05
Abstract: Provided is a light emitting device including a first electrode, a second electrode facing the first electrode, and an emission layer between the first electrode and the second electrode, wherein the emission layer includes a host and a dopant, and the host includes a compound represented by Formula E-2a or Formula E-2b, and the dopant includes a fused polycyclic compound represented by Formula 1.
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公开(公告)号：US20230120766A1
公开(公告)日：2023-04-20
申请号：US17834464
申请日：2022-06-07
Applicant: Samsung Display Co., Ltd.
Inventor： Yuji SUZAKI , Hirokazu KUWABARA , Ryuhei FURUE , Tetuji HAYANO
Abstract: A light emitting device includes an emission layer disposed between electrodes. The emission layer includes a host and a delayed fluorescence dopant. The delayed fluorescence dopant includes a fused polycyclic compound represented by Formula 1:
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Patent Agency Ranking
6.发明申请公开(公告)号：US20220123214A1
公开(公告)日：2022-04-21
申请号：US17397406
申请日：2021-08-09
Applicant: Samsung Display Co., Ltd.
Inventor： Hirokazu KUWABARA , Ryuhei FURUE , Yuji SUZAKI
Abstract: An organic electroluminescence device 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, wherein the emission layer includes a polycyclic compound represented by Formula 1, thereby exhibiting high emission efficiency.
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7.发明申请公开(公告)号：US20220246850A1
公开(公告)日：2022-08-04
申请号：US17532117
申请日：2021-11-22
Applicant: Samsung Display Co., Ltd.
Inventor： Ryuhei FURUE , Hirokazu KUWABARA , Yoshiro SUGITA , Yuji SUZAKI , Yuma AOKI
Abstract: An organic electroluminescence device 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 emission layer includes a polycyclic compound represented by Formula 1, thereby showing high emission efficiency.
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8.发明申请公开(公告)号：US20210376249A1
公开(公告)日：2021-12-02
申请号：US17186629
申请日：2021-02-26
Applicant: Samsung Display Co., Ltd.
Inventor： Nobutaka AKASHI , Hirokazu KUWABARA
Abstract: An organic electroluminescence device of one or more embodiments 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, wherein the emission layer includes a polycyclic compound represented by Formula 1, thereby showing high emission efficiency: wherein Y is O or S.
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9.发明申请公开(公告)号：US20210273174A1
公开(公告)日：2021-09-02
申请号：US17089268
申请日：2020-11-04
Applicant: Samsung Display Co., LTD.
Inventor： Hirokazu KUWABARA , Nobutaka AKASHI , Ryuhei FURUE
Abstract: An organic electroluminescence device having high light emission efficiency is provided, which 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 polycyclic compound represented by Formula 1:
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10.发明申请公开(公告)号：US20210273165A1
公开(公告)日：2021-09-02
申请号：US17023969
申请日：2020-09-17
Applicant: Samsung Display Co., LTD.
Inventor： Hirokazu KUWABARA , Ryuhei FURUE
Abstract: An organic electroluminescence device exhibiting high light emission efficiency is provided, which 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 emission layer may include a nitrogen-containing compound represented by Formula 1:
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