公开(公告)号：US20240206209A1

公开(公告)日：2024-06-20

申请号：US18589868

申请日：2024-02-28

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Satoshi SEO ,  Takeyoshi WATABE ,  Satomi MITSUMORI

IPC: H10K50/11 ,  C07D241/38 ,  C07D403/12 ,  C07D405/10 ,  C09K11/02 ,  C09K11/06 ,  H10K50/13 ,  H10K59/35 ,  H10K85/30 ,  H10K85/60 ,  H10K101/00 ,  H10K101/10 ,  H10K101/30 ,  H10K101/40

CPC classification number: H10K50/11 ,  C07D241/38 ,  C07D403/12 ,  C07D405/10 ,  C09K11/02 ,  C09K11/06 ,  H10K85/342 ,  H10K85/633 ,  H10K85/636 ,  H10K85/6572 ,  H10K85/6574 ,  C09K2211/1007 ,  C09K2211/1011 ,  C09K2211/1014 ,  C09K2211/1022 ,  C09K2211/1029 ,  C09K2211/1033 ,  C09K2211/1044 ,  C09K2211/1048 ,  C09K2211/1051 ,  C09K2211/1059 ,  C09K2211/1088 ,  C09K2211/1092 ,  C09K2211/185 ,  C09K2211/188 ,  H10K50/131 ,  H10K59/35 ,  H10K85/615 ,  H10K2101/10 ,  H10K2101/27 ,  H10K2101/30 ,  H10K2101/40 ,  H10K2101/90 ,  Y02P20/582

Abstract: To provide a light-emitting element with high emission efficiency and low driving voltage. The light-emitting element includes a guest material and a host material. A LUMO level of the guest material is lower than a LUMO level of the host material. An energy difference between the LUMO level and a HOMO level of the guest material is larger than an energy difference between the LUMO level and a HOMO level of the host material. The guest material has a function of converting triplet excitation energy into light emission. An energy difference between the LUMO level of the guest material and the HOMO level of the host material is larger than or equal to energy of light emission of the guest material.

公开(公告)号：US20190189936A1

公开(公告)日：2019-06-20

申请号：US16271967

申请日：2019-02-11

Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

Inventor： Takeyoshi WATABE ,  Satoshi SEO ,  Satomi MITSUMORI

IPC: H01L51/00 ,  C09K11/02 ,  G06F3/041 ,  H01L51/50 ,  G09G3/3225 ,  C07F15/00 ,  C09K11/06 ,  H05B33/14 ,  G06F3/044

CPC classification number: H01L51/0085 ,  C07F15/0033 ,  C09K11/025 ,  C09K11/06 ,  C09K2211/1007 ,  C09K2211/1059 ,  C09K2211/185 ,  G06F3/0416 ,  G06F3/044 ,  G06F2203/04111 ,  G09G3/3225 ,  G09G2300/0426 ,  G09G2300/0452 ,  G09G2300/0809 ,  G09G2310/0267 ,  G09G2310/0272 ,  G09G2310/08 ,  G09G2330/021 ,  G09G2330/04 ,  G09G2380/02 ,  H01L51/0067 ,  H01L51/0072 ,  H01L51/0074 ,  H01L51/008 ,  H01L51/009 ,  H01L51/0097 ,  H01L51/5004 ,  H01L51/5012 ,  H01L51/5016 ,  H01L51/5028 ,  H01L51/524 ,  H01L2251/5384 ,  H01L2251/552 ,  H05B33/14

Abstract: To provide a light-emitting element with high emission efficiency and low driving voltage. The light-emitting element includes a guest material and a host material. A LUMO level of the host material is higher than a LUMO level of the host material, and a HOMO level of the guest material is lower than a HOMO level of the host material. The guest material has a function of converting triplet excitation energy into light emission. The difference between a singlet excitation energy level and a triplet excitation energy level of the host material is greater than 0 eV and less than or equal to 0.2 eV. The energy difference between the LUMO level and the HOMO level of the host material is larger than or equal to light emission energy of the guest material.

公开(公告)号：US20170183368A1

公开(公告)日：2017-06-29

申请号：US15386432

申请日：2016-12-21

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Tomoka Hara ,  Miki KANAMOTO ,  Hideko INOUE ,  Satoshi SEO ,  Satomi MITSUMORI ,  Takeyoshi WATABE ,  Nobuharu OHSAWA

IPC: C07F15/00 ,  H01L51/00 ,  C09K11/06

CPC classification number: C07F15/0086 ,  C07F15/0033 ,  C09K11/06 ,  C09K2211/1007 ,  C09K2211/1022 ,  C09K2211/1029 ,  C09K2211/1044 ,  C09K2211/1059 ,  C09K2211/1074 ,  C09K2211/1096 ,  C09K2211/185 ,  H01L51/0085 ,  H01L51/0087 ,  H01L51/0094 ,  H01L51/5012 ,  H01L51/5016 ,  Y02P20/582

Abstract: A novel light-emitting material is provided. A novel orgnometallic complex is provided. An orgnometallic complex having a high carrier-transport property is provided. An orgnometallic complex having a deep HOMO level and/or a deep LUMO level is provided. An orgnometallic complex having a high charge-injection property is provided. Another object is to provide an organometallic complex that can exhibit yellow to blue phosphorescence. An organometallic complex that has a high carrier-transport property and exhibits green to blue phosphorescence is provided. An organometallic complex including a ligand having a structure of 5-(2-pyridinyl)-5H-benzimidazo[1,2-a]benzimidazole and a light-emitting material including the organometallic complex are provided.

公开(公告)号：US20170025630A1

公开(公告)日：2017-01-26

申请号：US15212842

申请日：2016-07-18

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Satoshi Seo ,  Tatsuyoshi TAKAHASHI ,  Takeyoshi WATABE ,  Satomi MITSUMORI

IPC: H01L51/50 ,  C07F15/00 ,  C09K11/06 ,  H01L27/32

CPC classification number: H01L51/5028 ,  C07F15/0033 ,  C09K11/06 ,  C09K2211/1007 ,  C09K2211/1011 ,  C09K2211/1059 ,  C09K2211/185 ,  H01L27/322 ,  H01L27/323 ,  H01L27/3244 ,  H01L51/0052 ,  H01L51/006 ,  H01L51/0061 ,  H01L51/0067 ,  H01L51/0071 ,  H01L51/0072 ,  H01L51/0074 ,  H01L51/0085 ,  H01L51/5004 ,  H01L51/5012 ,  H01L51/5016 ,  H01L51/5056 ,  H01L51/5072 ,  H01L2251/5346 ,  H01L2251/5384 ,  H01L2251/552

Abstract: A light-emitting element with high emission efficiency. 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. The HOMO level of the first organic compound is lower than the HOMO level of the second organic compound. The HOMO level of the guest material is higher than the HOMO level of the second organic compound. The energy difference between the LUMO level of the guest material and the HOMO level of the guest material is larger than the energy difference between the LUMO level of the first organic compound and 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.

Abstract translation: 发光效率高的发光元件。 发光元件包括第一有机化合物，第二有机化合物和客体材料。 第一有机化合物的LUMO水平低于第二有机化合物的LUMO水平。 第一有机化合物的HOMO含量低于第二有机化合物的HOMO能级。 客体材料的HOMO含量高于第二有机化合物的HOMO含量。 客体材料的LUMO能级与客体材料的HOMO能级之间的能量差大于第一有机化合物的LUMO能级与第二有机化合物的HOMO能级之间的能量差。 客体材料具有将三重态激发能转换成发光的功能。 第一有机化合物和第二有机化合物形成激元复合物。

公开(公告)号：US20240306411A1

公开(公告)日：2024-09-12

申请号：US18667068

申请日：2024-05-17

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Satomi MITSUMORI ,  Takeyoshi WATABE ,  Satoshi SEO ,  Yuko KUBOTA

IPC: H10K50/11 ,  H10K50/15 ,  H10K50/16 ,  H10K50/19 ,  H10K50/852 ,  H10K59/30 ,  H10K59/35 ,  H10K59/38 ,  H10K85/30 ,  H10K101/00 ,  H10K101/10 ,  H10K101/40

CPC classification number: H10K50/11 ,  H10K50/15 ,  H10K50/16 ,  H10K59/38 ,  H10K85/341 ,  H10K85/342 ,  H10K85/344 ,  H10K85/346 ,  H10K85/348 ,  H10K50/19 ,  H10K50/852 ,  H10K59/30 ,  H10K59/35 ,  H10K2101/10 ,  H10K2101/40 ,  H10K2101/90

Abstract: A light-emitting element having low driving voltage and high emission efficiency is provided. In the light-emitting element, a combination of a guest material and a host material forms an exciplex. The guest material is capable of converting triplet excitation energy into light emission. Light emission from the light-emitting layer includes light emission from the guest material and light emission from the exciplex. The percentage of the light emission from the exciplex to the light emission from the light-emitting layer is greater than 0 percent and less than or equal to 60 percent. The energy after subtracting the energy of light emission from the exciplex from the energy of light emission from the guest material is greater than 0 eV and less than or equal to 0.23 eV.

公开(公告)号：US20230269954A1

公开(公告)日：2023-08-24

申请号：US18136030

申请日：2023-04-18

Applicant: Semiconductor Energy Laboratory Co. Ltd.

Inventor： Satoshi Seo ,  Takeyoshi WATABE ,  Satomi MITSUMORI

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

CPC classification number: H10K50/11 ,  C09K11/06 ,  C09K11/02 ,  H10K50/12 ,  H10K85/30 ,  H10K85/346 ,  H10K85/657 ,  H10K85/6572 ,  C09K2211/1007 ,  C09K2211/1044 ,  C09K2211/185 ,  C09K2211/1059 ,  C09K2211/1029 ,  H10K50/19

Abstract: To provide a light-emitting element with high emission efficiency and low driving voltage. The light-emitting element includes a guest material and a host material. A HOMO level of the guest material is higher than a HOMO level of the host material. An energy difference between the LUMO level and a HOMO level of the guest material is larger than an energy difference between the LUMO level and a HOMO level of the host material. The guest material has a function of converting triplet excitation energy into light emission. An energy difference between the LUMO level of the host material and the HOMO level of the guest material is larger than or equal to energy of light emission of the guest material.

公开(公告)号：US20190207124A1

公开(公告)日：2019-07-04

申请号：US16291710

申请日：2019-03-04

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Miki Kanamoto ,  Takeyoshi WATABE ,  Hideko INOUE ,  Satoshi SEO ,  Satomi MITSUMORI ,  Tatsuyoshi TAKAHASHI

IPC: H01L51/00 ,  C09K11/06 ,  C07F15/00 ,  C07D491/048

CPC classification number: H01L51/0072 ,  C07D491/048 ,  C07F15/0033 ,  C09K11/06 ,  C09K2211/1007 ,  C09K2211/1044 ,  C09K2211/1048 ,  C09K2211/1059 ,  C09K2211/185 ,  H01L27/322 ,  H01L27/323 ,  H01L51/0071 ,  H01L51/0085 ,  H01L51/5012 ,  H01L51/5016 ,  H01L51/5056 ,  H01L51/5072

Abstract: Provided is a novel compound or a light-emitting element with high emission efficiency. The provided novel compound includes a bicarbazole skeleton and a benzofuropyrimidine skeleton or a benzothienopyrimidine skeleton. The provided light-emitting element includes the compound.

公开(公告)号：US20180047911A1

公开(公告)日：2018-02-15

申请号：US15797463

申请日：2017-10-30

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Hiroshi KADOMA ,  Satomi MITSUMORI ,  Yuko KAWATA ,  Takao HAMADA ,  Satoshi SEO

IPC: H01L51/00 ,  C09K11/06 ,  H01L51/50

CPC classification number: H01L51/0067 ,  C09K11/06 ,  H01L51/0072 ,  H01L51/0073 ,  H01L51/0074 ,  H01L51/5056 ,  H01L51/5072 ,  H01L51/5088 ,  H01L51/5092

Abstract: A novel organic compound that can be used as a carrier-transport material, a host material, or a light-emitting material in a light-emitting element is provided. Specifically, an organic compound that can give a light-emitting element having favorable characteristics even when the organic compound is used in a light-emitting element emitting phosphorescence is provided. The organic compound has a bipyridine skeleton formed by two pyridine skeletons to each of which a dibenzothiophenyl group or a dibenzofuranyl group is bonded via an arylene group.

公开(公告)号：US20160308139A1

公开(公告)日：2016-10-20

申请号：US15097520

申请日：2016-04-13

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Satoshi SEO ,  Yuko KUBOTA ,  Tatsuyoshi TAKAHASHI ,  Satomi MITSUMORI

IPC: H01L51/00 ,  C07D401/14 ,  C07D403/14 ,  C09K11/06 ,  H01L27/32 ,  H01L51/52

CPC classification number: H01L51/0067 ,  C07D401/14 ,  C07D403/14 ,  C09K11/06 ,  C09K2211/1007 ,  C09K2211/1029 ,  C09K2211/1044 ,  H01L51/0072 ,  H01L51/5016 ,  H01L51/5072 ,  H01L2251/5338 ,  H01L2251/5361

Abstract: A novel heterocyclic compound is provided. A highly efficient and reliable light-emitting element is provided. The heterocyclic compound is represented by a general formula (G1). In the general formula (G1), any one, two, or three of Y1 to Y4 in a ring A represent N atoms, and the rest of Y1 to Y4 represents CH. In the case where any two or three of the Y1 to Y4 are N atoms, the N atoms are not next to each other. Further, Ar1 represents a substituted or unsubstituted biphenyldiyl group, Ar2 represents a substituted or unsubstituted biphenyldiyl group, Cz1 represents a substituted or unsubstituted heterocyclic group including a carbazole skeleton, Cz2 represents a substituted or unsubstituted heterocyclic group including a carbazole skeleton, the carbazole skeleton included in the Cz1 is directly bonded to the Ar1, and the carbazole skeleton included in the Cz2 is directly bonded to the Ar2.

Abstract translation: 在通式（G1）中，环A中的Y1至Y4中的任何一个，两个或三个表示N个原子，其余的Y 1至Y 4表示CH。 在Y1至Y4中的任意两个或三个为N原子的情况下，N原子彼此不相邻。 此外，Ar 1表示取代或未取代的联苯二基，Ar 2表示取代或未取代的联苯基，Cz1表示具有咔唑骨架的取代或未取代的杂环基，Cz2表示包含咔唑骨架的取代或未取代的杂环基，含有咔唑骨架 在Cz1中直接键合到Ar1上，包括在Cz2中的咔唑骨架直接键合到Ar2上。

公开(公告)号：US20200350503A1

公开(公告)日：2020-11-05

申请号：US16874737

申请日：2020-05-15

Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

Inventor： Satoshi SEO ,  Takeyoshi WATABE ,  Hideko INOUE ,  Yui YAMADA ,  Satomi MITSUMORI ,  Tatsuyoshi TAKAHASHI ,  Tomoka HARA

IPC: H01L51/00 ,  C07F15/00 ,  C09K11/06 ,  C09K11/02 ,  H01L51/50

Abstract: Provided is a light-emitting element with high emission efficiency. 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 that of the second organic compound, and the HOMO level of the first organic compound is lower than that of the second organic compound. The LUMO level of a guest material is higher than that of the first organic compound, and the HOMO level of the guest material is lower than that 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.