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    Light-emitting element
    3.
    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。

    Carbazole compound, light-emitting element, light-emitting device, electronic device, and lighting device
    4.
    发明授权
    Carbazole compound, light-emitting element, light-emitting device, electronic device, and lighting device 有权
    咔唑化合物，发光元件，发光装置，电子装置和照明装置

    公开(公告)号：US09079855B2

    公开(公告)日：2015-07-14

    申请号：US13481142

    申请日：2012-05-25

    申请人： Harue Osaka ,  Satoko Shitagaki ,  Nobuharu Ohsawa

    发明人： Harue Osaka ,  Satoko Shitagaki ,  Nobuharu Ohsawa

    IPC分类号： C07D209/88

    CPC分类号： C07D209/88

    摘要： A carbazole compound represented by General Formula (G1) is provided. In the formula, α represents a phenylene group, Ar1 represents an alkyl group having 1 to 6 carbon atoms, a substituted or unsubstituted phenyl group, a substituted or unsubstituted naphthyl group, or a substituted or unsubstituted phenanthryl group, Ar2 represents hydrogen, a substituted or unsubstituted phenyl group, a substituted or unsubstituted naphthyl group, or a substituted or unsubstituted phenanthryl group, Ar3 represents a substituted or unsubstituted phenyl group, a substituted or unsubstituted naphthyl group, or a substituted or unsubstituted phenanthryl group, and R1 represents hydrogen, an alkyl group having 1 to 6 carbon atoms, or a substituted or unsubstituted phenyl group. Further, n is 0 or 1.

    摘要翻译： 提供由通式（G1）表示的咔唑化合物。 在该式中，α表示亚苯基，Ar 1表示碳原子数1〜6的烷基，取代或未取代的苯基，取代或未取代的萘基或取代或未取代的菲基，Ar 2表示氢，取代 或未取代的苯基，取代或未取代的萘基或取代或未取代的菲基，Ar 3表示取代或未取代的苯基，取代或未取代的萘基或取代或未取代的菲基，R 1表示氢， 具有1至6个碳原子的烷基或取代或未取代的苯基。 此外，n为0或1。

    Light-emitting body, light-emitting layer, and light-emitting device
    5.
    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。