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    ORGANIC LIGHT-EMITTING DIODE HAVING LONG LIFESPAN PROPERTY
    24.
    发明申请
    ORGANIC LIGHT-EMITTING DIODE HAVING LONG LIFESPAN PROPERTY 有权

    公开(公告)号：US20210119167A1

    公开(公告)日：2021-04-22

    申请号：US17125024

    申请日：2020-12-17

    申请人： SFC CO., LTD.

    发明人： Young-Hwan PARK ,  Seo-Yeon Yoon ,  Chang-Hee Lee ,  So Young Shim

    IPC分类号： H01L51/50 ,  H01L51/52 ,  H01L51/00

    摘要： The present disclosure relates to an organic light-emitting diode: comprising a first electrode; a second electrode facing the first electrode; and a hole transport layer and a light-emitting layer disposed in that order between the first and the second electrode, wherein the light-emitting layer includes a host and a hole assistant material represented by the following Chemical Formula A, the hole assistant material having a highest occupied molecular orbital (HOMO) energy level lower in absolute value than that of the host.

    ORGANIC ELECTROLUMINESCENCE DEVICE
    26.
    发明申请
    ORGANIC ELECTROLUMINESCENCE DEVICE 审中-公开

    公开(公告)号：US20200287141A1

    公开(公告)日：2020-09-10

    申请号：US16650717

    申请日：2018-09-21

    申请人： HODOGAYA CHEMICAL CO., LTD. ,  SFC CO., LTD.

    发明人： Yuta HIRAYAMA ,  Takeshi YAMAMOTO ,  Kazuyuki SURUGA ,  Se-Jin LEE ,  Oun-Gyu LEE ,  Bong-Ki SHIN

    IPC分类号： H01L51/00 ,  C09K11/06 ,  H01L51/50

    摘要： [Object] It is an object of the present invention to provide an organic EL device in which various materials for an organic EL device, which is excellent in hole/electron injection/transport performance, electron blocking performance, stability in a thin film state, and durability, are combined as materials for an organic EL device that has high light emission efficiency and high durability so that properties of each of the materials can be effectively expressed, thereby achieving (1) high light emission efficiency and power efficiency, (2) a low light emission start voltage, (3) a low practical driving voltage, and particularly (4) a long lifetime.[Solving Means] There is provided an organic electroluminescence device, including at least an anode, a hole transport layer, a light-emitting layer, an electron transport layer, and a cathode in the stated order, the organic electroluminescence device being characterized in that the hole transport layer contains an arylamine compound represented by the following general formula (1), and the light-emitting layer contains a heterocyclic compound having a fused ring structure represented by the following general formula (2) or a heterocyclic compound having a fused ring structure represented by the following general formula (3).

    Organic light emitting diode of high efficiency
    29.
    发明授权
    Organic light emitting diode of high efficiency 有权

    公开(公告)号：US10559758B2

    公开(公告)日：2020-02-11

    申请号：US15739276

    申请日：2016-07-08

    申请人： SFC CO., LTD.

    发明人： Young-Hwan Park ,  So Young Shim ,  Seo-Yeon Yoon ,  Chang-Hee Lee

    IPC分类号： H01L51/52 ,  H01L51/00 ,  C09K11/06 ,  H01L51/50

    摘要： Disclosed herein is an organic light-emitting diode, comprising: a first electrode; a second electrode facing the first electrode; and a light-emitting layer and an electron density control layer in that order between the first electrode and the second electrode, wherein the electron density control layer includes at least one selected from among compounds represented by the following Chemical Formulas A to D, and the light emitting layer includes at least one anthracene compound represented by the following Chemical Formula H. The structures of Chemical Formulas A to D and H are as described in the specification.