ORGANIC LIGHT EMITTING DIODE
    2.
    发明申请
    ORGANIC LIGHT EMITTING DIODE 审中-公开
    有机发光二极管

    公开(公告)号:US20160308137A1

    公开(公告)日:2016-10-20

    申请号:US15094099

    申请日:2016-04-08

    Applicant: SFC CO., LTD.

    Abstract: Disclosed herein is an organic light-emitting diode, comprising an anode, a hole transport layer, a light-emitting layer including a host and a dopant, an electron transport layer, and a cathode in that order, wherein an electron-density-controlling layer including an anthracene derivative represented by the following Chemical Formula A is disposed between the light-emitting layer and the electron transport layer, and wherein an affinity Ah (eV) of the host of the light-emitting layer, an affinity Aed (eV) of the electron-density-controlling layer, and an affinity Ae (eV) of the electron transport layer satisfy an relationship of Ah≧Aed≧Ae.

    Abstract translation: 本发明公开了一种有机发光二极管,其包括阳极,空穴传输层,包括主体和掺杂剂的发光层,电子传输层和阴极,其中电子密度控制 包含由以下化学式A表示的蒽衍生物的层设置在发光层和电子传输层之间,并且其中发光层的主体的亲和力Ah(eV),亲和力Aed(eV) 的电子密度控制层,并且电子传输层的亲和力Ae(eV)满足Ah≥Aed≥Ae的关系。

    ORGANIC ELECTROLUMINESCENT ELEMENT

    公开(公告)号:US20250024698A1

    公开(公告)日:2025-01-16

    申请号:US18574791

    申请日:2022-08-01

    Abstract: An object of the present invention is to provide a material for organic EL elements, the material being excellent in hole injecting/transporting performance, electron-blocking capability, stability in the form of a thin film, and durability. Another object of the present invention is to provide an organic EL element having high efficiency, a low driving voltage, and a long lifespan, by combining the aforementioned material with various materials for organic EL elements, the materials being excellent in hole/electron injecting/transporting performance, electron-blocking capability, stability in the form of a thin film, and durability, such that the properties of the individual materials can be effectively exhibited. Focusing on the finding that a triarylamine compound having a specific structure is excellent in hole injecting/transporting capability, stability in the form of a thin film, and durability, a specific arylamine compound was selected and used as a material for a hole-transporting layer to produce an organic EL element, and thus, the present invention has been accomplished.

    ORGANIC ELECTROLUMINESCENT ELEMENT
    5.
    发明公开

    公开(公告)号:US20230180598A1

    公开(公告)日:2023-06-08

    申请号:US17925619

    申请日:2021-06-16

    CPC classification number: H10K85/633 H10K85/658 C09K11/06 H10K50/156

    Abstract: An objective of the present invention is to provide a material for organic EL devices offering excellent hole injectability and transportability, electron blockability, stability in a thin-film state, and durability, and also to provide an organic EL device having high efficiency, low driving voltage and long lifetime by employing, in combination, the aforementioned material and various materials for organic EL devices offering excellent hole/electron injectability and transportability, electron blockability, stability in a thin-film state, and durability, in a manner that the properties of each of the materials can be brought out effectively. The present invention relates to an organic EL device containing a specific arylamine compound as a material constituting a second hole transport layer, wherein the difference between the HOMO level of the second hole transport layer and the HOMO level of a first hole transport layer is 0.15 eV or less.

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