公开(公告)号：US20240334729A1

公开(公告)日：2024-10-03

申请号：US18491154

申请日：2023-10-20

Applicant: Samsung Display Co., Ltd.

Inventor： Jiyoung Lee ,  Makoto Yamamoto ,  Tsuyoshi Naijo ,  Toshiyuki Matsuura ,  Sungsoo Bae ,  Hojung Syn ,  Hyosup Shin ,  Heechoon Ahn ,  Changwoong Chu

IPC: H10K50/135 ,  H10K50/155 ,  H10K50/16 ,  H10K85/30 ,  H10K85/40 ,  H10K85/60

CPC classification number: H10K50/135 ,  H10K50/155 ,  H10K50/16 ,  H10K85/346 ,  H10K85/40 ,  H10K85/631 ,  H10K85/654 ,  H10K85/6572 ,  H10K85/658 ,  H10K2101/25

Abstract: A light-emitting device includes a first electrode, a second electrode facing the first electrode, and an interlayer between the first electrode and the second electrode and including an emission layer, wherein the emission layer includes a first compound, a second compound, a transition metal-containing compound, and a delayed fluorescence compound, the first compound being a hole transport material, and the second compound being an electron transport material, the first compound and the second compound form an exciplex, the first compound, the second compound, or any combination thereof is substituted with at least one deuterium, and an absolute value of a triplet charge transfer state-singlet ground state non-radiative decay rate constant of a mixture of the first compound and the second compound is decreased, compared to a case in which the first compound, the second compound, or any combination thereof is not substituted with deuterium.

公开(公告)号：US20240324267A1

公开(公告)日：2024-09-26

申请号：US18410664

申请日：2024-01-11

Applicant: Samsung Display Co., Ltd.

Inventor： Jiyoung Lee ,  Makoto Yamamoto ,  Tsuyoshi Naijo ,  Toshiyuki Matsuura ,  Sungsoo Bae ,  Hojung Syn ,  Hyosup Shin ,  Heechoon Ahn ,  Changwoong Chu

IPC: H10K50/12 ,  H10K50/15 ,  H10K50/16 ,  H10K85/30 ,  H10K85/40 ,  H10K85/60 ,  H10K101/00 ,  H10K101/10 ,  H10K101/30

CPC classification number: H10K50/12 ,  H10K50/15 ,  H10K50/16 ,  H10K85/346 ,  H10K85/40 ,  H10K85/6572 ,  H10K85/658 ,  H10K2101/10 ,  H10K2101/30 ,  H10K2101/90

Abstract: A light-emitting device includes an emission layer including a first host, a second host, a first dopant, and a second dopant. The first dopant is a metal-containing compound, the second dopant is a boron-containing compound, the first host and the second host combine to form a host exciplex, the host exciplex is in a triplet (T1) state, and the host exciplex in the T1 state is also in a local-excitation state.

公开(公告)号：US20240324262A1

公开(公告)日：2024-09-26

申请号：US18413769

申请日：2024-01-16

Applicant: Samsung Display Co., Ltd.

Inventor： Hyosup Shin ,  Makoto Yamamoto ,  Tsuyoshi Naijo ,  Toshiyuki Matsuura ,  Sungsoo Bae ,  Hojung Syn ,  Heechoon Ahn ,  Jiyoung Lee ,  Changwoong Chu

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

CPC classification number: H10K50/11 ,  H10K85/324 ,  H10K85/615 ,  H10K85/654 ,  H10K85/6572

Abstract: A composition includes a first compound and a second compound different from the first compound and satisfies Expressions 1 and 2:








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公开(公告)号：US12052915B2

公开(公告)日：2024-07-30

申请号：US16931273

申请日：2020-07-16

Applicant: Samsung Display Co., Ltd.

Inventor： Akinori Yamatani ,  Ikuo Sasaki ,  Makoto Yamamoto

IPC: H10K85/60 ,  C07D235/06 ,  C07D235/18 ,  C07D235/20 ,  C07D235/24 ,  C07D235/30 ,  H10K50/11 ,  H10K50/14 ,  H10K85/40

CPC classification number: H10K85/654 ,  C07D235/06 ,  C07D235/18 ,  C07D235/20 ,  C07D235/24 ,  C07D235/30 ,  H10K50/11 ,  H10K50/14 ,  H10K85/6572 ,  H10K85/40

Abstract: An organic electroluminescence device according to an embodiment of the present disclosure includes a first electrode, 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 organic layer of the plurality of organic layers includes a polycyclic compound containing two aromatic 6-membered rings which are linked by a single bond, and a plurality of benzimidazole groups which are substituted at the two aromatic 6-membered rings, wherein each of the two aromatic 6-membered rings includes a carbon atom or a nitrogen atom as an atom for forming a ring.

公开(公告)号：US11963375B2

公开(公告)日：2024-04-16

申请号：US17227886

申请日：2021-04-12

Applicant: Samsung Display Co., Ltd.

Inventor： Jiyoung Lee ,  Makoto Yamamoto ,  Toshiyuki Matsuura ,  Hyunyoung Kim ,  Hyosup Shin

IPC: H10K50/11 ,  G02B1/08 ,  G02B5/20 ,  H01L33/50 ,  H10K50/15 ,  H10K50/16 ,  H10K85/30 ,  H10K85/40 ,  H10K85/60 ,  H10K101/10 ,  H10K101/40

CPC classification number: H10K50/11 ,  G02B1/08 ,  G02B5/20 ,  H01L33/50 ,  H10K85/346 ,  H10K85/40 ,  H10K85/623 ,  H10K85/624 ,  H10K85/636 ,  H10K85/654 ,  H10K85/6572 ,  H10K85/6574 ,  H10K50/15 ,  H10K50/16 ,  H10K2101/10 ,  H10K2101/40

Abstract: A light-emitting device includes a first electrode. a second electrode facing the first electrode, and an interlayer between the first electrode and the second electrode and including an emission layer. The emission layer may include a hole transporting host, an electron transporting host, a sensitizer, and a delayed fluorescence dopant. The hole transporting host and the electron transporting host may form an exciplex. The sensitizer may include an organometallic compound. The delayed fluorescence dopant may not include a metal atom, and the exciplex may satisfy specific Equations.