ORGANIC ELECTROLUMINESCENCE DEVICE AND HETEROCYCLIC COMPOUND FOR ORGANIC ELECTROLUMINESCENCE DEVICE

    公开(公告)号:US20190393422A1

    公开(公告)日:2019-12-26

    申请号:US16382346

    申请日:2019-04-12

    Inventor: Naoya SAKAMOTO

    Abstract: An organic electroluminescence device and a heterocyclic compound, the device including 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 includes a heterocyclic compound that includes a nitrogen-containing monocycle, at least one linker, and two or more carbazole moieties, the at least one linker is a substituted or unsubstituted dibenzofuran group or a substituted or unsubstituted dibenzothiophene group, and at least one of the carbazole moieties and the nitrogen-containing monocycle are bonded to the at least one linker in an ortho relationship.

    LIGHT EMITTING ELEMENT AND MONOAMINE COMPOUND FOR THE SAME

    公开(公告)号:US20220077396A1

    公开(公告)日:2022-03-10

    申请号:US17375524

    申请日:2021-07-14

    Inventor: Naoya SAKAMOTO

    Abstract: A light emitting element of an embodiment includes a first electrode, a second electrode facing the first electrode, and functional layers disposed between the first electrode and the second electrode. At least one functional layer among the functional layers includes a monoamine compound of an embodiment thereby showing high efficiency and long life characteristics. The monoamine compound includes a substituted or unsubstituted phenanthryl group directly bonded to a nitrogen atom, a substituted or unsubstituted dibenzoheterole group directly bonded to the nitrogen atom, and a substituted or unsubstituted naphthyl group bonded to the nitrogen atom via a linker.

    ORGANIC ELECTROLUMINESCENCE DEVICE AND POLYCYCLIC COMPOUND FOR ORGANIC ELECTROLUMINESCENCE DEVICE

    公开(公告)号:US20190296247A1

    公开(公告)日:2019-09-26

    申请号:US16270108

    申请日:2019-02-07

    Inventor: Naoya SAKAMOTO

    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, and a second electrode disposed on the electron transport region, wherein the emission layer includes a polycyclic compound containing two electron donors and one electron acceptor, and the electron acceptor includes a benzonitrile part and a pyridine part, thereby showing high emission efficiency.

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