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    LIGHT-EMITTING ELEMENT
    32.
    发明申请
    LIGHT-EMITTING ELEMENT 审中-公开

    公开(公告)号：US20170179411A1

    公开(公告)日：2017-06-22

    申请号：US15454055

    申请日：2017-03-09

    Applicant: Semiconductor Energy Laboratory Co., Ltd.

    Inventor： Satoko SHITAGAKI ,  Satoshi SEO ,  Nobuharu OHSAWA ,  Hideko INOUE ,  Kunihiko SUZUKI

    IPC: H01L51/00 ,  C09K11/06 ,  C09K11/02

    Abstract: A light-emitting element having high external quantum efficiency is provided. A light-emitting element having a long lifetime is provided. A light-emitting element is provided which includes a light-emitting layer containing a phosphorescent compound, a first organic compound, and a second organic compound between a pair of electrodes, in which a combination of the first organic compound and the second organic compound forms an exciplex (excited complex). The light-emitting element transfers energy by utilizing an overlap between the emission spectrum of the exciplex and the absorption spectrum of the phosphorescent compound and thus has high energy transfer efficiency. Therefore, a light-emitting element having high external quantum efficiency can be obtained.

    Organic Compound, Light-Emitting Element, Display Module, Lighting Module, Light-Emitting Device, Display Device, Electronic Device, and Lighting Device
    34.
    发明申请
    Organic Compound, Light-Emitting Element, Display Module, Lighting Module, Light-Emitting Device, Display Device, Electronic Device, and Lighting Device 审中-公开
    有机化合物，发光元件，显示模块，照明模块，发光装置，显示装置，电子装置和照明装置

    公开(公告)号：US20160240794A1

    公开(公告)日：2016-08-18

    申请号：US15043792

    申请日：2016-02-15

    Applicant: Semiconductor Energy Laboratory Co., Ltd.

    Inventor： Yui YAMADA ,  Hideko INOUE ,  Tsunenori SUZUKI ,  Satoshi SEO

    IPC: H01L51/00 ,  C07D401/14 ,  H01L27/32

    CPC classification number: H01L51/0072 ,  C07D401/14 ,  H01L51/0058 ,  H01L51/0067 ,  H01L51/5072 ,  H01L51/5092

    Abstract: A novel organic compound that can be used as an electron-injection material or an electron-transport material of a light-emitting element is provided. An organic compound with which a display device having less crosstalk can be obtained is provided. A light-emitting device, a display device, and an electronic device each having less crosstalk are provided. An organic compound including two or three benzo[h]quinazoline rings is provided. In the organic compound, two or three benzo[h]quinazoline rings are preferably included in the substituent including an aromatic ring or a heteroaromatic ring and having 3 to 30 carbon atoms. When two or three benzo[h]quinazoline rings are included in a substituent particularly including a heteroaromatic ring and having 3 to 30 carbon atoms, a high electron-transport property can be obtained.

    Abstract translation: 提供了可用作电子注入材料或发光元件的电子传输材料的新型有机化合物。 提供了可以获得具有较少串扰的显示装置的有机化合物。 提供了具有较少串扰的发光装置，显示装置和电子装置。 提供了包含两个或三个苯并[h]喹唑啉环的有机化合物。 在有机化合物中，优选在包括芳香环或杂芳环并且具有3-30个碳原子的取代基中包括两个或三个苯并[h]喹唑啉环。 当特别包括杂芳环并且具有3-30个碳原子的取代基中包含两个或三个苯并[h]喹唑啉环时，可以获得高的电子传输性。

    Light-Emitting Element, Light-Emitting Device, Electronic Device, Lighting Device, and Organic Compound
    35.
    发明申请
    Light-Emitting Element, Light-Emitting Device, Electronic Device, Lighting Device, and Organic Compound 有权
    发光元件，发光装置，电子装置，照明装置和有机化合物

    公开(公告)号：US20160028022A1

    公开(公告)日：2016-01-28

    申请号：US14807426

    申请日：2015-07-23

    Applicant: Semiconductor Energy Laboratory Co., Ltd.

    Inventor： Satoshi Seo ,  Takao HAMADA ,  Tatsuyoshi TAKAHASHI ,  Yasushi KITANO ,  Hiroki SUZUKI ,  Hideko INOUE

    IPC: H01L51/00 ,  C07D403/14

    CPC classification number: H01L51/0072 ,  C07D403/14 ,  H01L51/006 ,  H01L51/0061 ,  H01L51/0085 ,  Y02P20/582

    Abstract: To provide a light-emitting element with an improved reliability, a light-emitting element with a high current efficiency (or a high quantum efficiency), and a novel dibenzo[f,h]quinoxaline derivative that is favorably used in a light-emitting element which is one embodiment of the present invention. A light-emitting element includes an EL layer between an anode and a cathode. The EL layer includes a light-emitting layer; the light-emitting layer contains a first organic compound having an electron-transport property and a hole-transport property, a second organic compound having a hole-transport property, and a light-emitting substance; the combination of the first organic compound and the second organic compound forms an exciplex; the HOMO level of the first organic compound is lower than the HOMO level of the second organic compound; and a difference between the HOMO level of the first organic compound and the HOMO level of the second organic compound is less than or equal to 0.4 eV.

    Abstract translation: 为了提供可靠性提高的发光元件，具有高电流效率（或高量子效率）的发光元件和有利地用于发光的新型二苯并[f，h]喹喔啉衍生物 元件是本发明的一个实施例。 发光元件包括在阳极和阴极之间的EL层。 EL层包括发光层; 发光层含有具有电子传输性和空穴传输性的第一有机化合物，具有空穴传输性的第二有机化合物和发光物质; 第一有机化合物和第二有机化合物的组合形成激光复合物; 第一有机化合物的HOMO含量低于第二有机化合物的HOMO含量; 并且第一有机化合物的HOMO能级与第二有机化合物的HOMO能级之间的差异小于或等于0.4eV。

    PHOSPHORESCENT ORGANOMETALLIC IRIDIUM COMPLEX, LIGHT-EMITTING ELEMENT, LIGHT-EMITTING DEVICE, ELECTRONIC DEVICE, AND LIGHTING DEVICE
    37.
    发明申请
    PHOSPHORESCENT ORGANOMETALLIC IRIDIUM COMPLEX, LIGHT-EMITTING ELEMENT, LIGHT-EMITTING DEVICE, ELECTRONIC DEVICE, AND LIGHTING DEVICE 有权
    磷光体系光电复合体，发光元件，发光元件，电子器件及照明器件

    公开(公告)号：US20130221278A1

    公开(公告)日：2013-08-29

    申请号：US13770188

    申请日：2013-02-19

    Applicant: Semiconductor Energy Laboratory Co., Ltd.

    Inventor： Hideko INOUE ,  Takahiro ISHISONE ,  Nobuharu OHSAWA ,  Satoshi SEO ,  Takao HAMADA

    IPC: C09K11/06

    CPC classification number: H01L51/0085 ,  C07F15/0033 ,  C09K11/06 ,  C09K2211/1007 ,  C09K2211/1059 ,  C09K2211/185 ,  H01L51/5016 ,  H05B33/14

    Abstract: A novel phosphorescent organometallic iridium complex is provided in which a coordination position of a ligand with respect to a metal can be controlled in synthesis. A novel phosphorescent organometallic iridium complex is provided which can keep high quantum efficiency and can emit phosphorescence in the blue to green wavelength region. A phosphorescent organometallic iridium complex which includes a structure represented by General Formula (G1) and whose ligand is a 4H-1,2,4-triazole compound which has an unsubstituted phenyl group at the 3-position, a substituted or unsubstituted phenyl group at the 4-position, and a phenyl group at the 5-position. In the phenyl group at the 5-position, an alkyl group is bonded to at least one of the ortho-positions, and the other of the ortho-positions, the meta-positions, and the para-position are substituted or unsubstituted.

    Abstract translation: 提供了一种新型磷光有机金属铱络合物，其中配体相对于金属的配位位置可以在合成中控制。 提供了一种新型磷光有机金属铱络合物，其可以保持高量子效率并且可以在蓝色至绿色波长区域发射磷光。 一种磷光有机金属铱络合物，其包含由通式（G1）表示的结构，其配体是在3位具有未取代的苯基的4H-1,2,4-三唑化合物，取代或未取代的苯基 4-位，和5-位的苯基。 在5-位的苯基中，烷基与至少一个邻位连接，另一个邻位，间位和对位是取代或未取代的。

    Light-Emitting Element
    39.
    发明申请
    Light-Emitting Element 有权

    公开(公告)号：US20210305530A1

    公开(公告)日：2021-09-30

    申请号：US17337569

    申请日：2021-06-03

    Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

    Inventor： Satoko SHITAGAKI ,  Satoshi SEO ,  Nobuharu OHSAWA ,  Hideko INOUE ,  Masahiro TAKAHASHI ,  Kunihiko SUZUKI

    IPC: H01L51/50 ,  H01L51/00 ,  H05B33/14 ,  C09K11/02 ,  C09K11/06 ,  H01L51/52

    Abstract: Provided is a light-emitting element with high external quantum efficiency, or a light-emitting element with a long lifetime. The light-emitting element includes, between a pair of electrodes, a light-emitting layer including a guest material and a host material, in which an emission spectrum of the host material overlaps with an absorption spectrum of the guest material, and phosphorescence is emitted by conversion of an excitation energy of the host material into an excitation energy of the guest material. By using the overlap between the emission spectrum of the host material and the absorption spectrum of the guest material, the energy smoothly transfers from the host material to the guest material, so that the energy transfer efficiency of the light-emitting element is high. Accordingly, a light-emitting element with high external quantum efficiency can be achieved.

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