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    LIGHT-EMITTING ELEMENT, LIGHT-EMITTING DEVICE, ELECTRONIC DEVICE, LIGHTING DEVICE, LIGHTING SYSTEM, AND GUIDANCE SYSTEM
    11.
    发明申请
    LIGHT-EMITTING ELEMENT, LIGHT-EMITTING DEVICE, ELECTRONIC DEVICE, LIGHTING DEVICE, LIGHTING SYSTEM, AND GUIDANCE SYSTEM 审中-公开

    公开(公告)号：US20180358562A1

    公开(公告)日：2018-12-13

    申请号：US15779661

    申请日：2016-12-06

    Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

    Inventor： Yusuke TAKITA ,  Satoshi SEO ,  Tsunenori SUZUKI ,  Harue OSAKA

    IPC: H01L51/00 ,  C07D333/76 ,  H05B33/08 ,  H05B37/02

    CPC classification number: H01L51/0061 ,  C07D333/76 ,  C09K11/06 ,  H01L51/0074 ,  H01L51/50 ,  H01L51/5064 ,  H01L2251/552 ,  H05B33/0896 ,  H05B37/02 ,  H05B37/0218

    Abstract: An object is to provide a light-emitting element with a favorable lifetime.A light-emitting element which includes a first electrode, a second electrode, and an EL layer and in which the EL layer includes a hole-injection layer and first to fourth layers; the hole-injection layer includes an organic acceptor and is positioned between the first electrode and the first layer; the first layer includes a first hole-transport material; the second layer includes a second hole-transport material and is positioned between the first layer and the third layer; the third layer includes a third hole-transport material; the fourth layer includes a host material and a light-emitting material and is positioned between the third layer and the second electrode; the HOMO level of the second hole-transport material is deeper than the HOMO level of the first hole-transport material; the HOMO level of the host material is deeper than the second hole-transport material HOMO level; the HOMO level of the third hole-transport material is deeper than or equal to the HOMO level of the host material; a difference between the HOMO level of the second hole-transport material and the HOMO level of the third hole-transport material is less than or equal to 0.3 eV; and the second hole-transport material is a triarylamine compound having a structure where a dibenzofuran skeleton or a dibenzothiophene skeleton is bonded to nitrogen of an amine directly or via a divalent aromatic hydrocarbon group.

    Light-Emitting Element, Light-Emitting Device, Electronic Device, and Lighting Device
    12.
    发明申请
    Light-Emitting Element, Light-Emitting Device, Electronic Device, and Lighting Device 审中-公开

    公开(公告)号：US20170294617A1

    公开(公告)日：2017-10-12

    申请号：US15630340

    申请日：2017-06-22

    Applicant: Semiconductor Energy Laboratory Co., Ltd.

    Inventor： Satoshi SEO ,  Tsunenori SUZUKI ,  Satoko SHITAGAKI

    IPC: H01L51/50 ,  H01L51/00

    Abstract: Objects of the present invention are to provide: a light-emitting element having a long lifetime and good emission efficiency and drive voltage. One embodiment of the invention is a light-emitting element including, between an anode and a cathode, at least a stack structure in which a first layer, a second layer, and a light-emitting layer are provided in order from the anode side. The first layer includes a first organic compound and an electron-accepting compound. The second layer includes a second organic compound having a HOMO level differing from the HOMO level of the first organic compound by from −0.2 eV to +0.2 eV. The light-emitting layer includes a third organic compound having a HOMO level differing from the HOMO level of the second organic compound by from −0.2 eV to +0.2 eV and a light-emitting substance having a hole-trapping property with respect to the third organic compound.

    Organic Compound, Light-Emitting Element, Display Module, Lighting Module, Light-Emitting Device, Display Device, Electronic Device, and Lighting Device
    15.
    发明申请
    Organic Compound, Light-Emitting Element, Display Module, Lighting Module, Light-Emitting Device, Display Device, Electronic Device, and Lighting Device 有权
    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：US20160190471A1

    公开(公告)日：2016-06-30

    申请号：US14976443

    申请日：2015-12-21

    Applicant: Semiconductor Energy Laboratory Co., Ltd.

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

    IPC: H01L51/00 ,  C07D401/14

    CPC classification number: H01L51/0067 ,  C07D401/14 ,  C09K11/06 ,  H01L51/0054 ,  H01L51/0058 ,  H01L51/006

    Abstract: An object is to provide an organic compound having high heat resistance and a light-emitting element, a light-emitting device, an electronic device, and a display device each having high reliability. Provided are an organic compound having a 2,2′-(pyridine-2,6-diyl)bipyrimidine skeleton in which the 2-positions of pyrimidine skeletons are bonded to the 2- and 6-positions of a pyridine skeleton, and having a structure in which at least one aryl group having a fused structure with 10 to 16 carbon atoms is bonded to the 2,2′-(pyridine-2,6-diyl)bipyrimidine skeleton, and a light-emitting element, a light-emitting device, an electronic device, and a display device each containing the organic compound.

    Abstract translation: 本发明的目的是提供一种具有高耐热性的有机化合物和具有高可靠性的发光元件，发光装置，电子设备和显示装置。 提供了具有2,2' - （吡啶-2,6-二基）联嘧啶骨架的有机化合物，其中嘧啶骨架的2-位与吡啶骨架的2-和6-位键合，并且具有 其中至少一个具有10至16个碳原子的稠合结构的芳基与2,2' - （吡啶-2,6-二基）联嘧啶骨架结合，发光元件，发光 装置，电子装置以及各自含有有机化合物的显示装置。

    Anthracene Derivative, Light-Emitting Element, Light-Emitting Device, and Electronic Appliance
    17.
    发明申请
    Anthracene Derivative, Light-Emitting Element, Light-Emitting Device, and Electronic Appliance 有权
    蒽衍生物，发光元件，发光器件和电子器件

    公开(公告)号：US20140081031A1

    公开(公告)日：2014-03-20

    申请号：US14085498

    申请日：2013-11-20

    Applicant: Semiconductor Energy Laboratory Co., Ltd.

    Inventor： Sachiko KAWAKAMI ,  Tsunenori SUZUKI ,  Nobuharu OHSAWA ,  Satoko SHITAGAKI ,  Satoshi SEO

    IPC: H01L51/00

    CPC classification number: H01L51/0072 ,  C07D209/86 ,  C09K11/06 ,  C09K2211/1011 ,  H01L51/0052 ,  H01L51/0058 ,  H01L51/006 ,  H01L51/0081 ,  H01L51/5012

    Abstract: Novel anthracene derivatives are provided. Further, a light-emitting element, a light-emitting device, and an electronic appliance each using the novel anthracene derivative are provided. Anthracene derivatives represented by general formulae (G11) and (G21) are provided. The anthracene derivatives represented by the general formulae (G11) and (G21) each emit blue light with high color purity and have a carrier-transporting property. Therefore, each of the anthracene derivatives represented by the general formulae (G11) and (G21) is suitable for use in a light-emitting element, a light-emitting device, and an electronic appliance.

    Abstract translation: 提供了新型蒽衍生物。 此外，提供了使用新型蒽衍生物的发光元件，发光装置和电子设备。 提供由通式（G11）和（G21）表示的蒽衍生物。 由通式（G11）和（G21）表示的蒽衍生物各自发出高色纯度的蓝色光，并具有载流子传输性。 因此，由通式（G11）和（G21）表示的各种蒽衍生物适合用于发光元件，发光装置和电子设备中。

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