中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

61 records (took 0.056 seconds)

    Light-Emitting Element, Light-Emitting Device, Electronic Device, and Lighting Device
    2.
    发明申请
    Light-Emitting Element, Light-Emitting Device, Electronic Device, and Lighting Device 审中-公开

    公开(公告)号：US20190088897A1

    公开(公告)日：2019-03-21

    申请号：US16183838

    申请日：2018-11-08

    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.

    Light-Emitting Element, Light-Emitting Device, Electronic Device, and Lighting Device
    3.
    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.

    Organometallic Complex, Light-Emitting Element, Light-Emitting Device, Electronic Device, and Lighting Device
    5.
    发明申请
    Organometallic Complex, Light-Emitting Element, Light-Emitting Device, Electronic Device, and Lighting Device 审中-公开
    有机金属配合物，发光元件，发光装置，电子装置和照明装置

    公开(公告)号：US20160254461A1

    公开(公告)日：2016-09-01

    申请号：US15054772

    申请日：2016-02-26

    Applicant: Semiconductor Energy Laboratory Co., Ltd.

    Inventor： Hideko Inoue ,  Takahiro ISHISONE ,  Satoko SHITAGAKI ,  Takao HAMADA ,  Tomoka HARA

    IPC: H01L51/00 ,  C07F15/00

    CPC classification number: H01L51/0085 ,  C07F15/0033 ,  H01L51/5016

    Abstract: An organometallic complex that has high emission efficiency and high heat resistance and emits blue light is provided as a novel substance. In a light-emitting element including a light-emitting layer between a pair of electrodes, the light-emitting layer includes an organometallic complex, and the organometallic complex includes a central metal and two types of ligands coordinated to the central metal. One of the two types of ligands includes a triazole skeleton including nitrogen bonded to the central metal, and the other includes a nitrogen-containing five-membered heterocyclic skeleton including carbene carbon bonded to the central metal and nitrogen bonded to carbene carbon.

    Abstract translation: 提供具有高发光效率和高耐热性并发出蓝光的有机金属配合物作为新物质。 在包括一对电极之间的发光层的发光元件中，发光层包括有机金属络合物，有机金属络合物包括中心金属和与中心金属配位的两种配体。 两种配体中的一种包括三唑骨架，其包含与中心金属结合的氮，另一种包括含氮键合的五元杂环骨架，包括与中心金属键合的碳原子碳和与碳原子结合的氮。

    LIGHT-EMITTING ELEMENT
    6.
    发明申请
    LIGHT-EMITTING ELEMENT 审中-公开
    发光元件

    公开(公告)号：US20150021579A1

    公开(公告)日：2015-01-22

    申请号：US14504826

    申请日：2014-10-02

    Applicant: Semiconductor Energy Laboratory Co., Ltd.

    Inventor： Shunpei YAMAZAKI ,  Satoshi SEO ,  Satoko SHITAGAKI ,  Nobuharu OHSAWA ,  Hideko INOUE ,  Hiroshi KADOMA ,  Harue OSAKA

    IPC: H01L51/50 ,  H01L51/00

    CPC classification number: H01L51/504 ,  H01L27/3209 ,  H01L51/0059 ,  H01L51/0061 ,  H01L51/0071 ,  H01L51/0072 ,  H01L51/0074 ,  H01L51/0085 ,  H01L51/5016 ,  H01L51/5056 ,  H01L51/5072 ,  H01L2251/5346 ,  H01L2251/5376 ,  H01L2251/5384

    Abstract: A light-emitting element having extremely high efficiency of approximately 25% is provided. The light-emitting element includes a light-emitting layer which contains a phosphorescent guest, an n-type host, and a p-type host, where the light-emitting layer is interposed between an n-type layer including the n-type host and a p-type layer including the p-type host, and where the n-type host and the p-type host are able to form an exciplex in the light-emitting layer. The light-emitting element exhibits an extremely high emission efficiency (power efficiency of 74.3 lm/W, external quantum efficiency of 24.5%, energy efficiency of 19.3%) at a low driving voltage (2.6 V) at which luminance of 1200 cd/m2 is attainable.

    Abstract translation: 提供了具有极高效率约25％的发光元件。 发光元件包括含有磷光客体，n型主体和p型主体的发光层，其中发光层插入在包括n型主体的n型层之间 以及包含p型主体的p型层，其中n型主体和p型主体能够在发光层中形成激光复合物。 在1200cd / m2的亮度的低驱动电压（2.6V）下，发光元件显示出极高的发光效率（74.3lm / W的功率效率，24.5％的外部量子效率，能量效率为19.3％） 是可以实现的

    LIGHT-EMITTING ELEMENT, LIGHT-EMITTING DEVICE, DISPLAY DEVICE, LIGHTING DEVICE, AND ELECTRONIC DEVICE
    7.
    发明申请
    LIGHT-EMITTING ELEMENT, LIGHT-EMITTING DEVICE, DISPLAY DEVICE, LIGHTING DEVICE, AND ELECTRONIC DEVICE 审中-公开
    发光元件，发光装置，显示装置，照明装置和电子装置

    公开(公告)号：US20140339524A1

    公开(公告)日：2014-11-20

    申请号：US14277450

    申请日：2014-05-14

    Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

    Inventor： Satoko SHITAGAKI ,  Takahiro ISHISONE ,  Satoshi SEO ,  Takeyoshi WATABE

    IPC: H01L51/50 ,  H01L51/00

    CPC classification number: H01L51/5028 ,  H01L51/0052 ,  H01L51/0067 ,  H01L51/0072 ,  H01L51/5048 ,  H01L51/5072

    Abstract: Provided is a light-emitting element which has an anode, a light-emitting layer over the anode, an electron-transport layer over and in contact with the light-emitting layer, an electron-injection layer over and in contact with the electron-transport layer, and a cathode over and in contact with the electron-injection layer. The light-emitting layer has an electron-transport property, and the electron-transport layer includes an anthracene derivative. The light-emitting layer further includes a phosphorescent substance. This device structure allows the formation of a highly efficient blue-emissive light-emitting element even though the phosphorescent substance has higher triplet energy than the anthracene derivative which directly contacts with the light-emitting layer.

    Abstract translation: 提供一种发光元件，其具有阳极，阳极上的发光层，与发光层接触的电子传输层，与电子发射层接触的电子注入层， 传输层和与电子注入层接触的阴极。 发光层具有电子传输性，电子传输层包含蒽衍生物。 发光层还包括磷光物质。 即使磷光物质具有比与发光层直接接触的蒽衍生物更高的三线态能量，也可以形成高效率的蓝色发光发光元件。

    Anthracene Derivative, Light-Emitting Element, Light-Emitting Device, and Electronic Appliance
    9.
    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。

    Light-Emitting Element, Display Device, Electronic Device, and Lighting Device
    10.
    发明申请
    Light-Emitting Element, Display Device, Electronic Device, and Lighting Device 审中-公开

    公开(公告)号：US20200259105A1

    公开(公告)日：2020-08-13

    申请号：US16859056

    申请日：2020-04-27

    Applicant: Semiconductor Energy Laboratory Co., Ltd.

    Inventor： Takeyoshi Watabe ,  Satoko SHITAGAKI ,  Kunihiko SUZUKI ,  Harue OSAKA ,  Satomi MITSUMORI ,  Satoshi SEO

    IPC: H01L51/00 ,  C09K11/02 ,  C09K11/06 ,  H01L27/32

    Abstract: A light-emitting element with high emission efficiency and high reliability is provided. The light-emitting element includes a light-emitting layer containing a first organic compound, a second organic compound, and a guest material. The first organic compound has a nitrogen-containing six-membered heteroaromatic skeleton. In the light-emitting layer, the weight ratio of an organic compound having a nitrogen-containing five-membered heterocyclic skeleton with an NH group, a secondary amine skeleton with an NH group, or a primary amine skeleton with an NH group to the first organic compound is less than or equal to 0.03, or alternatively, the weight ratio of the organic compound having a nitrogen-containing five-membered heterocyclic skeleton with an NH group, a secondary amine skeleton with an NH group, or a primary amine skeleton with an NH group to the second organic compound is less than or equal to 0.01.

Patent Agency Ranking