公开(公告)号：US20190074442A1

公开(公告)日：2019-03-07

申请号：US16182689

申请日：2018-11-07

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Takao HAMADA ,  Hiromi SEO ,  Kanta ABE ,  Kyoko TAKEDA ,  Satoshi SEO

IPC: H01L51/00 ,  C09K11/02 ,  C09K11/06 ,  C07D209/86 ,  H01L51/50

Abstract: A light-emitting element having a long lifetime is provided. A light-emitting element exhibiting high emission efficiency in a high luminance region is provided. A light-emitting element includes a light-emitting layer between a pair of electrodes. The light-emitting layer contains a first organic compound, a second organic compound, and a phosphorescent compound. The first organic compound is represented by a general formula (G0). The molecular weight of the first organic compound is greater than or equal to 500 and less than or equal to 2000. The second organic compound is a compound having an electron-transport property. In the general formula (G0), Ar1 and Ar2 each independently represent a fluorenyl group, a spirofluorenyl group, or a biphenyl group, and Ar3 represents a substituent including a carbazole skeleton.

公开(公告)号：US20180138416A1

公开(公告)日：2018-05-17

申请号：US15812703

申请日：2017-11-14

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Satoshi Seo ,  Tatsuyoshi TAKAHASHI ,  Kyoko TAKEDA ,  Kanta ABE ,  Hiroki SUZUKI

IPC: H01L51/00 ,  C07F15/00 ,  C09K11/06 ,  G06F3/041 ,  G06F3/045 ,  H01L51/50 ,  H05B33/14 ,  H05B33/20

CPC classification number: H01L51/0051 ,  C07F15/0033 ,  C09K11/06 ,  G06F3/0412 ,  G06F3/045 ,  H01L27/3267 ,  H01L51/0059 ,  H01L51/0061 ,  H01L51/0067 ,  H01L51/0072 ,  H01L51/0074 ,  H01L51/0085 ,  H01L51/5004 ,  H01L51/5016 ,  H01L51/5028 ,  H01L51/5056 ,  H01L51/5072 ,  H01L2251/5384 ,  H01L2251/552 ,  H05B33/14 ,  H05B33/20

Abstract: A light-emitting element with a lower voltage and higher emission efficiency is provided. The light-emitting element includes a first organic compound, a second organic compound, and a guest material. The LUMO level of the first organic compound is lower than the LUMO level of the second organic compound, and a difference between them is larger than 0 eV and smaller than or equal to 0.5 eV. Furthermore, the HOMO level of the first organic compound is lower than the HOMO level of the second organic compound. The guest material has a function of converting triplet excitation energy into light emission. The first organic compound and the second organic compound form an exciplex.

公开(公告)号：US20160343942A1

公开(公告)日：2016-11-24

申请号：US15228557

申请日：2016-08-04

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Takao HAMADA ,  Hiromi SEO ,  Kanta ABE ,  Kyoko TAKEDA ,  Satoshi SEO

IPC: H01L51/00 ,  C09K11/02 ,  C07D209/86 ,  C09K11/06

CPC classification number: H01L51/006 ,  C07D209/86 ,  C09K11/025 ,  C09K11/06 ,  C09K2211/1007 ,  C09K2211/1044 ,  C09K2211/185 ,  H01L51/0052 ,  H01L51/0056 ,  H01L51/0058 ,  H01L51/0061 ,  H01L51/0067 ,  H01L51/0072 ,  H01L51/0074 ,  H01L51/0085 ,  H01L51/5016 ,  H01L51/5024 ,  H01L51/5056 ,  H01L51/5072 ,  H01L2251/5384

Abstract: A light-emitting element having a long lifetime is provided. A light-emitting element exhibiting high emission efficiency in a high luminance region is provided. A light-emitting element includes a light-emitting layer between a pair of electrodes. The light-emitting layer contains a first organic compound, a second organic compound, and a phosphorescent compound. The first organic compound is represented by a general formula (G0). The molecular weight of the first organic compound is greater than or equal to 500 and less than or equal to 2000. The second organic compound is a compound having an electron-transport property. In the general formula (G0), Ar1 and Ar2 each independently represent a fluorenyl group, a spirofluorenyl group, or a biphenyl group, and Ar3 represents a substituent including a carbazole skeleton.

Abstract translation: 提供具有长寿命的发光元件。 提供了在高亮度区域表现出高发光效率的发光元件。 发光元件包括在一对电极之间的发光层。 发光层含有第一有机化合物，第二有机化合物和磷光化合物。 第一有机化合物由通式（G0）表示。 第一有机化合物的分子量大于或等于500且小于或等于2000.第二有机化合物是具有电子传输性质的化合物。 在通式（G0）中，Ar 1和Ar 2各自独立地表示芴基，螺芴基或联苯基，Ar 3表示包含咔唑骨架的取代基。

公开(公告)号：US20160315270A1

公开(公告)日：2016-10-27

申请号：US15203901

申请日：2016-07-07

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Satoshi SEO ,  Satoko SHITAGAKI ,  Miyako MORIKUBO ,  Naoaki HASHIMOTO ,  Takahiro ISHISONE ,  Kyoko TAKEDA ,  Hiromi SEO

IPC: H01L51/00 ,  C07D409/14 ,  C07D403/14 ,  C09K11/06 ,  C09K11/02

CPC classification number: H01L51/0072 ,  C07D403/14 ,  C07D409/14 ,  C09K11/025 ,  C09K11/06 ,  C09K2211/1007 ,  C09K2211/1044 ,  C09K2211/185 ,  H01L51/006 ,  H01L51/0071 ,  H01L51/0074 ,  H01L51/0085 ,  H01L51/5012 ,  H01L51/5016 ,  H01L51/5024 ,  H01L51/5076 ,  H05B33/14

Abstract: To provide a novel heterocyclic compound that can be used as a host material in which a light-emitting substance of a light-emitting layer is dispersed. A heterocyclic compound comprising a dibenzo[f,h]quinoxaline ring and two hole-transport skeletons, where the dibenzo[f,h]quinoxaline ring and the two hole-transport skeletons are bonded to an aromatic hydrocarbon group. A heterocyclic compound represented by the following general formula (G1) is provided. Note that in the formula, A1 and A2 each independently represent any of a substituted or unsubstituted carbazole skeleton, a substituted or unsubstituted dibenzofuran skeleton, and a substituted or unsubstituted dibenzothiophen skeleton; B represents a substituted or unsubstituted dibenzo[f,h]quinoxaline skeleton; and Ar represents an arene skeleton having 6 to 13 carbon atoms. A light-emitting element including the heterocyclic compound is provided.

Abstract translation: 注意，在该式中，A1和A2各自独立地表示取代或未取代的咔唑骨架，取代或未取代的二苯并呋喃骨架和取代或未取代的二苯并噻吩骨架中的任意一种; B代表取代或未取代的二苯并[f，h]喹喔啉骨架; Ar表示碳原子数6〜13的芳烃骨架。 提供了包含杂环化合物的发光元件。

公开(公告)号：US20240251667A1

公开(公告)日：2024-07-25

申请号：US18585268

申请日：2024-02-23

Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

Inventor： Kyoko TAKEDA ,  Harue OSAKA ,  Hiroshi KADOMA ,  Satoshi SEO ,  Tsunenori SUZUKI ,  Naoaki HASHIMOTO

IPC: H10K85/60 ,  C07D209/88 ,  C07D405/12 ,  C07D493/04 ,  C09K11/06 ,  H10K50/11

CPC classification number: H10K85/636 ,  C07D209/88 ,  C07D405/12 ,  C07D493/04 ,  C09K11/06 ,  H10K85/633 ,  C09K2211/1022 ,  H10K50/11 ,  H10K85/615 ,  H10K85/622 ,  H10K85/6572 ,  H10K85/6574

Abstract: A novel organic compound represented by General Formula (G1) is provided. In General Formula (G1), X1 and X2 each independently represent a secondary or tertiary alkyl group having 3 to 6 carbon atoms and having a branched carbon atom which is bonded to a phenyl group. In addition, Ar1 represents a substituted or unsubstituted condensed aromatic ring skeleton having 10 to 60 carbon atoms and composed of two or more rings or a substituted or unsubstituted condensed heteroaromatic ring skeleton having 8 to 60 carbon atoms and composed of two or more rings. Furthermore, Ar2 represents a substituted or unsubstituted aryl group having 6 to 25 carbon atoms. Moreover, n represents any of 1 to 3, and in the case where n is 2 or more, two or more groups bonded to Ar1 may be identical or different.

公开(公告)号：US20240057474A1

公开(公告)日：2024-02-15

申请号：US18376537

申请日：2023-10-04

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Takao HAMADA ,  Hiromi SEO ,  Kanta ABE ,  Kyoko TAKEDA ,  Satoshi SEO

IPC: H10K85/60 ,  C07D209/86 ,  H10K50/11 ,  H10K50/12 ,  H10K85/30 ,  C09K11/02 ,  C09K11/06

CPC classification number: H10K85/633 ,  C07D209/86 ,  H10K50/11 ,  H10K50/12 ,  H10K85/342 ,  H10K85/636 ,  H10K85/654 ,  H10K85/6572 ,  H10K85/6576 ,  C09K11/025 ,  C09K11/06 ,  H10K50/15

Abstract: A light-emitting element having a long lifetime is provided. A light-emitting element exhibiting high emission efficiency in a high luminance region is provided. A light-emitting element includes a light-emitting layer between a pair of electrodes. The light-emitting layer contains a first organic compound, a second organic compound, and a phosphorescent compound. The first organic compound is represented by a general formula (G0). The molecular weight of the first organic compound is greater than or equal to 500 and less than or equal to 2000. The second organic compound is a compound having an electron-transport property. In the general formula (G0), Ar1 and Ar2 each independently represent a fluorenyl group, a spirofluorenyl group, or a biphenyl group, and Ar3 represents a substituent including a carbazole skeleton.

公开(公告)号：US20240023431A1

公开(公告)日：2024-01-18

申请号：US18013374

申请日：2021-06-23

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Takeyoshi WATABE ,  Airi UEDA ,  Kyoko TAKEDA ,  Nobuharu OHSAWA ,  Satoshi SEO ,  Tomohiro KUBOTA ,  Takashi HIRAHARA

IPC: H10K85/60 ,  C07D409/12 ,  C09K11/06 ,  C07D405/12 ,  C07C211/61

CPC classification number: H10K85/636 ,  H10K50/17 ,  C09K11/06 ,  C07D405/12 ,  C07C211/61 ,  H10K85/633 ,  C09K2211/1018 ,  H10K85/6572 ,  H10K85/6576 ,  H10K85/6574 ,  C07C2603/18 ,  C09K2211/1007 ,  C09K2211/1011 ,  C09K2211/1014 ,  H10K85/615 ,  C07D409/12

Abstract: Provided is a light-emitting device with high emission efficiency. Provided is a light-emitting device including an anode, a cathode, and an EL layer positioned therebetween; the EL layer includes a light-emitting layer, a first layer, and a second layer; the first layer is positioned between the anode and the light-emitting layer; the first layer is in contact with the second layer; the second layer contains a monoamine compound having an arylamine structure; a first group, a second group, and a third group are bonded to a nitrogen atom included in the amine in the monoamine compound; the first group is a group including a carbazole structure; the second group is a group including a dibenzofuran structure or a dibenzothiophene structure; the third group includes an aromatic hydrocarbon structure having 6 to 18 carbon atoms or a heteroaromatic hydrocarbon structure having 4 to 26 carbon atoms; and a refractive index of the first layer is lower than a refractive index of the light-emitting layer.

公开(公告)号：US20230416201A1

公开(公告)日：2023-12-28

申请号：US18206968

申请日：2023-06-07

Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

Inventor： Anna TADA ,  Kyoko TAKEDA ,  Sachiko KAWAKAMI ,  Hiromitsu KIDO

IPC: C07D209/86 ,  H10K85/60 ,  H10K50/11

CPC classification number: C07D209/86 ,  C07B2200/05 ,  H10K50/11 ,  H10K85/6572

Abstract: A novel organic compound that is highly convenient, useful, or reliable is provided. The organic compound is represented by General Formula (G1). Note that R1 to R4 each independently represent hydrogen (including deuterium), a substituted or unsubstituted alkyl group having 1 to 6 carbon atoms, or a substituted or unsubstituted cycloalkyl group having 3 to 10 carbon atoms; Ar1 is represented by General Formula (g1-1) below; Ar2 represents a substituted or unsubstituted aryl group having 10 to 30 carbon atoms or a substituted or unsubstituted heteroaryl group having 2 to 30 carbon atoms; Ar3 is represented by General Formula (g1-2) below; α represents a substituted or unsubstituted arylene group having 6 to 30 carbon atoms; and n represents an integer of 0 to 4.

公开(公告)号：US20210328145A1

公开(公告)日：2021-10-21

申请号：US17345430

申请日：2021-06-11

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Takao HAMADA ,  Hiromi SEO ,  Kanta ABE ,  Kyoko TAKEDA ,  Satoshi SEO

IPC: H01L51/00 ,  H01L51/50 ,  C07D209/86 ,  C09K11/02 ,  C09K11/06

Abstract: A light-emitting element having a long lifetime is provided. A light-emitting element exhibiting high emission efficiency in a high luminance region is provided. A light-emitting element includes a light-emitting layer between a pair of electrodes. The light-emitting layer contains a first organic compound, a second organic compound, and a phosphorescent compound. The first organic compound is represented by a general formula (G0). The molecular weight of the first organic compound is greater than or equal to 500 and less than or equal to 2000. The second organic compound is a compound having an electron-transport property. In the general formula (G0), Ar1 and Ar2 each independently represent a fluorenyl group, a spirofluorenyl group, or a biphenyl group, and Ar3 represents a substituent including a carbazole skeleton.

公开(公告)号：US20210139445A1

公开(公告)日：2021-05-13

申请号：US17052937

申请日：2019-04-30

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Kyoko TAKEDA ,  Hiroshi KADOMA ,  Yusuke TAKITA ,  Tsunenori SUZUKI ,  Satoshi SEO

IPC: C07D307/79 ,  H01L51/00

Abstract: A novel organic compound is provided. Alternatively, an organic compound that exhibits light emission with favorable chromaticity is provided. Alternatively, an organic compound that exhibits blue light emission with favorable chromaticity is provided. Alternatively, a light-emitting device with favorable emission efficiency is provided. Alternatively, an organic compound having a high carrier-transport property is provided. Alternatively, an organic compound with favorable reliability is provided. An organic compound having at least one amino group in which any one of a substituted or unsubstituted dibenzofuranyl group, a substituted or unsubstituted dibenzothiophenyl group, and a substituted or unsubstituted carbazolyl group is bonded to any one of a substituted or unsubstituted naphthobisbenzofuran skeleton, a substituted or unsubstituted naphthobisbenzothiophene skeleton, and a substituted or unsubstituted naphthobenzothienobenzofuran skeleton is provided.