Organic light-emitting device
    27.
    发明授权
    Organic light-emitting device 有权
    有机发光装置

    公开(公告)号:US07466074B2

    公开(公告)日:2008-12-16

    申请号:US11548893

    申请日:2006-10-12

    IPC分类号: H01J1/62

    摘要: In an organic light-emitting device which uses, in particular, a light-emitting layer material having a wide band gap, a lowering in emission intensity due to continuous driving is alleviated while maintaining a high emission efficiency. There is provided an organic light-emitting device in which a hole-transporting layer contains a second component in addition to a main component; an energy of a lowest triplet excited state of the second component is less than an energy of a lowest triplet excited state of the main component of the hole-transporting layer; a lowest unoccupied molecular orbital energy of the second component is higher than a lowest unoccupied molecular orbital energy of the main component of a light-emitting layer; and the second component has an energy gap of 2.7 eV or more.

    摘要翻译: 在特别使用具有宽带隙的发光层材料的有机发光装置中,由于连续驱动而导致的发光强度降低,同时保持高的发光效率。 提供除了主要成分之外,空穴传输层包含第二成分的有机发光器件; 第二成分的最低三重激发态的能量小于空穴传输层的主要成分的最低三重态激发态的能量; 第二组分的最低未占分子轨道能量高于发光层的主要成分的最低未占分子轨道能量; 第二成分的能隙为2.7eV以上。

    Organic light-emitting device
    28.
    发明申请
    Organic light-emitting device 有权
    有机发光装置

    公开(公告)号:US20070205713A1

    公开(公告)日:2007-09-06

    申请号:US11548893

    申请日:2006-10-12

    IPC分类号: H05B33/00

    摘要: In an organic light-emitting device which uses, in particular, a light-emitting layer material having a wide band gap, a lowering in emission intensity due to continuous driving is alleviated while maintaining a high emission efficiency. There is provided an organic light-emitting device in which a hole-transporting layer contains a second component in addition to a main component; an energy of a lowest triplet excited state of the second component is less than an energy of a lowest triplet excited state of the main component of the hole-transporting layer; a lowest unoccupied molecular orbital energy of the second component is higher than a lowest unoccupied molecular orbital energy of the main component of a light-emitting layer; and the second component has an energy gap of 2.7 eV or more.

    摘要翻译: 在特别使用具有宽带隙的发光层材料的有机发光装置中,由于连续驱动而导致的发光强度降低,同时保持高的发光效率。 提供除了主要成分之外,空穴传输层包含第二成分的有机发光器件; 第二成分的最低三重激发态的能量小于空穴传输层的主要成分的最低三重态激发态的能量; 第二组分的最低未占分子轨道能量高于发光层的主要成分的最低未占分子轨道能量; 第二成分的能隙为2.7eV以上。