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    Light-emitting element
    5.
    发明授权
    Light-emitting element 有权
    发光元件

    公开(公告)号：US08736157B2

    公开(公告)日：2014-05-27

    申请号：US13433508

    申请日：2012-03-29

    申请人： Satoshi Seo ,  Satoko Shitagaki ,  Nobuharu Ohsawa ,  Hideko Inoue ,  Hiroshi Kadoma ,  Harue Osaka ,  Shunpei Yamazaki

    发明人： Satoshi Seo ,  Satoko Shitagaki ,  Nobuharu Ohsawa ,  Hideko Inoue ,  Hiroshi Kadoma ,  Harue Osaka ,  Shunpei Yamazaki

    IPC分类号： H05B33/14

    CPC分类号： H01L51/5028 ,  C09K11/06 ,  C09K2211/1007 ,  C09K2211/1044 ,  C09K2211/185 ,  H01L51/0072 ,  H01L51/0074 ,  H01L51/0085 ,  H01L51/5016 ,  H01L51/5024 ,  H05B33/14

    摘要： To provide a light-emitting element with high emission efficiency or long lifetime, in which the use amount of a phosphorescent compound is small. To provide a light-emitting element including a light-emitting layer between a pair of electrodes, wherein the light-emitting layer includes a phosphorescent compound, a first organic compound, and a second organic compound, and the combination of the first organic compound and the second organic compound forms an exciplex. The light-emitting element transfers energy by utilizing the overlap between the emission spectrum of the exciplex and the absorption spectrum of the phosphorescent compound and thus has high energy transfer efficiency, even when the concentration of the phosphorescent compound is low.

    摘要翻译： 为了提供磷光化合物的使用量小的发光效率高，寿命长的发光元件。 为了提供一种在一对电极之间包括发光层的发光元件，其中发光层包括磷光化合物，第一有机化合物和第二有机化合物，以及第一有机化合物和 第二有机化合物形成激元复合物。 发光元件利用激光复合物的发射光谱和磷光化合物的吸收光谱之间的重叠而传递能量，因此即使当磷光化合物的浓度低时，也具有高的能量转移效率。

    Light Emitting Device and Electronic Appliance Using the Same
    6.
    发明申请
    Light Emitting Device and Electronic Appliance Using the Same 有权
    发光装置及其使用的电子设备

    公开(公告)号：US20110298360A1

    公开(公告)日：2011-12-08

    申请号：US13156506

    申请日：2011-06-09

    申请人： Nobuharu Ohsawa ,  Hideko Inoue ,  Satoshi Seo ,  Satoko Shitagaki

    发明人： Nobuharu Ohsawa ,  Hideko Inoue ,  Satoshi Seo ,  Satoko Shitagaki

    IPC分类号： H05B33/14

    CPC分类号： H01L51/0085 ,  C09K11/025 ,  C09K11/06 ,  C09K2211/1007 ,  C09K2211/1022 ,  C09K2211/1029 ,  C09K2211/1044 ,  C09K2211/185 ,  H01L51/0072 ,  H01L51/009 ,  H01L51/5016 ,  H01L51/5052 ,  H05B33/14 ,  Y10S428/917

    摘要： The light emitting element includes a first electrode and a second electrode, between which a light emitting layer, a hole transporting layer provide in contact with the light emitting layer, an electron transporting layer provided in contact with the light emitting layer, and a mixed layer provided between the electron transporting layer and the second electrode. The mixed layer includes an electron transporting substance and a substance showing an electron donating property with respect to the electron transporting substance. The light emitting layer includes an organometallic complex represented in General Formula (1) and a host. R1 and R2 each represent an electron-withdrawing substituent group. R3 and R4 each represent any of hydrogen or an alkyl group having 1 to 4 carbon atoms. L represents any of a monoanionic ligand having a beta-diketone structure, a monoanionic bidentate chelating ligand having a carboxyl group, or a monoanionic bidentate chelating ligand having a phenolic hydroxyl group.

    摘要翻译： 发光元件包括第一电极和第二电极，在该第一电极和第二电极之间，发光层，与发光层接触的空穴传输层，与发光层接触设置的电子传输层，以及混合层 设置在电子传输层和第二电极之间。 该混合层包括电子传输物质和相对于电子传输物质显示给电子性的物质。 发光层包括通式（1）表示的有机金属络合物和主体。 R1和R2各自表示吸电子取代基。 R 3和R 4各自表示氢或碳原子数为1〜4的烷基中的任一个。 L表示具有β-二酮结构的单阴离子配体，具有羧基的单阴离子二齿螯合配体或具有酚羟基的单阴离子二齿螯合配体中的任一种。

    Light emitting element and light emitting device
    7.
    发明授权
    Light emitting element and light emitting device 有权
    发光元件和发光元件

    公开(公告)号：US07811677B2

    公开(公告)日：2010-10-12

    申请号：US10590703

    申请日：2005-05-17

    申请人： Nobuharu Ohsawa ,  Hiroko Abe ,  Hideko Inoue ,  Satoko Shitagaki ,  Satoshi Seo

    发明人： Nobuharu Ohsawa ,  Hiroko Abe ,  Hideko Inoue ,  Satoko Shitagaki ,  Satoshi Seo

    IPC分类号： H01L51/54 ,  C09K11/06

    CPC分类号： C09K11/06 ,  C09K2211/1044 ,  C09K2211/185 ,  H01L27/3244 ,  H01L51/0061 ,  H01L51/0072 ,  H01L51/0085 ,  H01L51/5016 ,  H01L51/5278 ,  H05B33/14 ,  Y10S428/917

    摘要： It is an object of the present invention to obtain an organometallic complex that is capable of converting an excited triplet state into luminescence, a light-emitting element that can be driven for a long time, is high in luminous efficiency, and has a favorable long lifetime, and a light-emitting device using the light-emitting element. The present invention provides a light-emitting element that has a pair of electrodes (an anode and a cathode) and a light-emitting layer between a pair of electrodes, where the light-emitting layer includes an organometallic complex represented by the following general formula (5) and one of a compound that has a larger energy gap than the organometallic complex and a compound that has a larger ionization potential and a smaller electron affinity than the organometallic complex, and provides a light-emitting device using the light-emitting device.

    摘要翻译： 本发明的目的是获得能够将激发的三线态转化为发光的有机金属络合物，长时间驱动的发光元件的发光效率高，并且具有良好的长 寿命和使用发光元件的发光器件。 本发明提供一种在一对电极之间具有一对电极（阳极和阴极）和发光层的发光元件，其中发光层包括由以下通式表示的有机金属络合物 （5）和具有比有机金属络合物更大的能隙的化合物和具有比有机金属络合物更大的电离电位和更小的电子亲和性的化合物之一，并且提供使用该发光器件的发光器件 。

    Light emitting device and electronic appliance using the same
    8.
    发明授权
    Light emitting device and electronic appliance using the same 有权
    发光装置及使用其的电子设备

    公开(公告)号：US09257657B2

    公开(公告)日：2016-02-09

    申请号：US13156506

    申请日：2011-06-09

    申请人： Nobuharu Ohsawa ,  Hideko Inoue ,  Satoshi Seo ,  Satoko Shitagaki

    发明人： Nobuharu Ohsawa ,  Hideko Inoue ,  Satoshi Seo ,  Satoko Shitagaki

    IPC分类号： H05B33/14 ,  H01L51/00 ,  C09K11/06 ,  H01L51/50

    CPC分类号： H01L51/0085 ,  C09K11/025 ,  C09K11/06 ,  C09K2211/1007 ,  C09K2211/1022 ,  C09K2211/1029 ,  C09K2211/1044 ,  C09K2211/185 ,  H01L51/0072 ,  H01L51/009 ,  H01L51/5016 ,  H01L51/5052 ,  H05B33/14 ,  Y10S428/917

    摘要： The light emitting element includes a first electrode and a second electrode, between which a light emitting layer, a hole transporting layer provide in contact with the light emitting layer, an electron transporting layer provided in contact with the light emitting layer, and a mixed layer provided between the electron transporting layer and the second electrode. The mixed layer includes an electron transporting substance and a substance showing an electron donating property with respect to the electron transporting substance. The light emitting layer includes an organometallic complex represented in General Formula (1) and a host. R1 and R2 each represent an electron-withdrawing substituent group. R3 and R4 each represent any of hydrogen or an alkyl group having 1 to 4 carbon atoms. L represents any of a monoanionic ligand having a beta-diketone structure, a monoanionic bidentate chelating ligand having a carboxyl group, or a monoanionic bidentate chelating ligand having a phenolic hydroxyl group.

    摘要翻译： 发光元件包括第一电极和第二电极，在该第一电极和第二电极之间，发光层，与发光层接触的空穴传输层，与发光层接触设置的电子传输层，以及混合层 设置在电子传输层和第二电极之间。 该混合层包括电子传输物质和相对于电子传输物质显示给电子性的物质。 发光层包括通式（1）表示的有机金属络合物和主体。 R1和R2各自表示吸电子取代基。 R 3和R 4各自表示氢或碳原子数为1〜4的烷基中的任一个。 L表示具有β-二酮结构的单阴离子配体，具有羧基的单阴离子二齿螯合配体或具有酚羟基的单阴离子二齿螯合配体中的任一种。

    Light-emitting body, light-emitting layer, and light-emitting device
    9.
    发明授权
    Light-emitting body, light-emitting layer, and light-emitting device 有权
    发光体，发光层和发光装置

    公开(公告)号：US09203044B2

    公开(公告)日：2015-12-01

    申请号：US13370672

    申请日：2012-02-10

    申请人： Shunpei Yamazaki ,  Satoshi Seo ,  Nobuharu Ohsawa ,  Satoko Shitagaki ,  Hideko Inoue ,  Hiroshi Kadoma ,  Harue Osaka ,  Kunihiko Suzuki

    发明人： Shunpei Yamazaki ,  Satoshi Seo ,  Nobuharu Ohsawa ,  Satoko Shitagaki ,  Hideko Inoue ,  Hiroshi Kadoma ,  Harue Osaka ,  Kunihiko Suzuki

    IPC分类号： H01L29/20 ,  H01L21/00 ,  H01L51/50

    CPC分类号： H01L51/5016 ,  H01L51/504 ,  H01L2251/5384

    摘要： An organic light-emitting element having high efficiency and long lifetime is provided. An organic light-emitting body is provided which includes a host having a high electron-transport property (n-type host), a host having a high hole-transport property (p-type host), and a guest such as an iridium complex and in which the n-type host and the p-type host are located so as to be adjacent to each other. When an electron and a hole are injected to such a light-emitting body, the electron is trapped by the n-type host and the hole is trapped by the p-type host. Then, both the electron and the hole are injected to the guest, and thus the guest is brought into an excited state. In this process, less thermal deactivation occurs and the working rate of the guest is high; thus, highly efficient light emission can be obtained.

    摘要翻译： 提供了高效率且寿命长的有机发光元件。 提供一种有机发光体，其包括具有高电子传输性质的主体（n型主体），具有高空穴传输性质的主体（p型主体））和诸如铱络合物的客体 并且其中n型主机和p型主机位于彼此相邻的位置。 当向这种发光体注入电子和空穴时，电子被n型主体捕获，孔被p型主体捕获。 然后，将电子和孔都注入到客体中，从而使客人处于激发状态。 在这个过程中，发生较少的热失活，客人的工作速度很高; 因此，可以获得高效的发光。