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    Organic light emitting device having stacked electron transport layers
    1.
    发明授权
    Organic light emitting device having stacked electron transport layers 有权
    具有层叠电子传输层的有机发光器件

    公开(公告)号：US09184407B2

    公开(公告)日：2015-11-10

    申请号：US14334623

    申请日：2014-07-17

    Applicant: Samsung Display Co., Ltd.

    Inventor： Sun-Hye Lee ,  Jae-Bok Kim ,  Won-Jun Song ,  Myung-Hwan Kim ,  Ji-Young Kim ,  Hye-Lim Shin ,  Tae-Kyu Shim ,  Yoon-Kyoo Lee

    IPC: H01L51/50 ,  H01L51/52 ,  H01L51/00 ,  H01L51/56

    CPC classification number: H01L51/508 ,  H01L27/3244 ,  H01L51/0002 ,  H01L51/0051 ,  H01L51/0052 ,  H01L51/0054 ,  H01L51/0067 ,  H01L51/0072 ,  H01L51/5048 ,  H01L51/5088 ,  H01L51/5237 ,  H01L51/524 ,  H01L51/5253 ,  H01L51/56

    Abstract: An organic light emitting device including: a first electrode, a hole injection layer on the first electrode, a hole transport layer on the hole injection layer, an organic light emitting layer on the hole transport layer, a first electron transport layer on the organic light emitting layer, a second electron transport layer on the organic light emitting layer, an electron injection layer on the second electron transport layer and a second electrode on the electron injection layer, where the first electron transport layer includes a first material for improving a thermal stability, a second material for improving a luminous efficiency and a third material for reducing a driving voltage, and the second electron transport layer is laminated with the first electron transport layer, and the second electrode faces the first electrode.

    Abstract translation: 一种有机发光器件，包括：第一电极，在第一电极上的空穴注入层，空穴注入层上的空穴传输层，空穴传输层上的有机发光层，有机光上的第一电子传输层 有机发光层上的第二电子传输层，第二电子传输层上的电子注入层和电子注入层上的第二电极，其中第一电子传输层包括用于提高热稳定性的第一材料 ，用于提高发光效率的第二材料和用于降低驱动电压的第三材料，并且第二电子传输层与第一电子传输层层叠，并且第二电极面对第一电极。

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