公开(公告)号：US20140042414A1

公开(公告)日：2014-02-13

申请号：US14056173

申请日：2013-10-17

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Junichiro SAKATA ,  Hideko INOUE ,  Satoshi SEO ,  Nobuharu OHSAWA

IPC: H01L51/52

CPC classification number: H01L51/5203 ,  H01L51/006 ,  H01L51/0067 ,  H01L51/008 ,  H01L51/0081 ,  H01L51/0085 ,  H01L51/0087 ,  H01L51/009 ,  H01L51/5012

Abstract: A light-emitting element is provided which has a light-emitting layer between a first electrode and a second electrode, where the light-emitting layer has a first layer and a second layer; the first layer contains a first organic compound and a third organic compound; the second layer contains a second organic compound and the third organic compound; the first layer is provided to be in contact with the second layer on the first electrode side; the first organic compound is an organic compound with an electron transporting property; the second organic compound is an organic compound with a hole transporting property; the third organic compound has an electron trapping property; and light emission from the third organic compound can be obtained when voltage is applied to the first electrode and the second electrode so that the potential of the first electrode is higher than that of the second electrode.

Abstract translation: 提供一种在第一电极和第二电极之间具有发光层的发光元件，其中发光层具有第一层和第二层; 第一层包含第一有机化合物和第三有机化合物; 第二层包含第二有机化合物和第三有机化合物; 第一层设置成与第一电极侧的第二层接触; 第一有机化合物是具有电子传输性质的有机化合物; 第二有机化合物是具有空穴传输性的有机化合物; 第三有机化合物具有电子捕获性; 并且当对第一电极和第二电极施加电压使得第一电极的电位高于第二电极的电位时，可以获得来自第三有机化合物的发光。

公开(公告)号：US20250098516A1

公开(公告)日：2025-03-20

申请号：US18967253

申请日：2024-12-03

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Hideko INOUE ,  Tomoya YAMAGUCHI ,  Hiromi SEO ,  Satoshi SEO ,  Kunihiko SUZUKI ,  Miki KANAMOTO

IPC: H10K85/30 ,  C07F15/00 ,  C09K11/02 ,  C09K11/06 ,  H05B33/10 ,  H10K50/11 ,  H10K85/60 ,  H10K101/10

Abstract: As a novel substance having a novel skeleton, an organometallic complex with high emission efficiency which achieves improved color purity by a reduction of half width of an emission spectrum is provided. One embodiment of the present invention is an organometallic complex in which a β-diketone and a six-membered heteroaromatic ring including two or more nitrogen atoms inclusive of a nitrogen atom that is a coordinating atom are ligands. In General Formula (G1), X represents a substituted or unsubstituted six-membered heteroaromatic ring including two or more nitrogen atoms inclusive of a nitrogen atom that is a coordinating atom. Further, R1 to R4 each represent a substituted or unsubstituted alkyl group having 1 to 6 carbon atoms.

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.

公开(公告)号：US20190157577A1

公开(公告)日：2019-05-23

申请号：US16261698

申请日：2019-01-30

Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

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

IPC: H01L51/00 ,  C07D209/86 ,  C07F15/00 ,  C07D471/04 ,  H01L51/50 ,  C07D333/76 ,  C07D241/12 ,  C07D239/26 ,  C07D409/10 ,  C09K11/02 ,  C09K11/06

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.

公开(公告)号：US20170288155A1

公开(公告)日：2017-10-05

申请号：US15471248

申请日：2017-03-28

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Miki KURIHARA ,  Yui YAMADA ,  Hideko INOUE ,  Satoshi SEO ,  Tatsuyoshi TAKAHASHI ,  Hiromitsu KIDO

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

CPC classification number: H01L51/0085 ,  C07F15/0033 ,  C09K11/06 ,  C09K2211/1007 ,  C09K2211/1044 ,  C09K2211/185 ,  H01L27/323 ,  H01L27/3244 ,  H01L51/5012 ,  H01L51/5016 ,  H01L51/5237 ,  H01L2251/5338 ,  H01L2251/5361

Abstract: To provide a novel organometallic complex. The organometallic complex is represented by General Formula (G1) and includes a central metal, a first ligand, and a second ligand. The first ligand and the second ligand are cyclometalated ligands. At least one of the first ligand and the second ligand includes a substituted or unsubstituted aryl group as a substituent. In General Formula (G1), each of R1 to R15 independently represents any of hydrogen, a halogen group, a substituted or unsubstituted alkyl group having 1 to 6 carbon atoms, a substituted or unsubstituted aryl group having 6 to 13 carbon atoms, and a substituted or unsubstituted heteroaryl group having 3 to 12 carbon atoms. Note that at least one of R1 to R15 represents a substituted or unsubstituted aryl group having 6 to 13 carbon atoms.

公开(公告)号：US20170125707A1

公开(公告)日：2017-05-04

申请号：US15332309

申请日：2016-10-24

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Tomoya Yamaguchi ,  Hideko INOUE ,  Tatsuyoshi TAKAHASHI

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

CPC classification number: H01L51/0085 ,  C07F15/0033 ,  C09K11/06 ,  C09K2211/1007 ,  C09K2211/1044 ,  C09K2211/185 ,  H01L51/5012 ,  H01L51/5016 ,  H01L51/5056 ,  H01L51/5072 ,  H01L51/5088 ,  H01L51/5092

Abstract: A novel organometallic complex having high color purity is provided. The organometallic complex includes a structure which includes iridium and a ligand and is represented by a general formula (G1). The ligand includes a pyrido[2,3-b]indole skeleton and a pyrimidine skeleton bonded to the 3-position of the pyrido[2,3-b]indole skeleton. The 2-position of the pyrido[2,3-b]indole skeleton and the pyrimidine skeleton are each bonded to the iridium. In the general formula (G1), R1 to R9 each independently represent any of hydrogen, a substituted or unsubstituted alkyl group having 1 to 6 carbon atoms, a substituted or unsubstituted aryl group having 6 to 13 carbon atoms, and a substituted or unsubstituted heteroaryl group having 3 to 12 carbon atoms.

公开(公告)号：US20170069852A1

公开(公告)日：2017-03-09

申请号：US15256000

申请日：2016-09-02

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.

Abstract translation: 提供了具有高排放效率的新型化合物或发光元件。 所提供的新化合物包括咔唑骨架和苯并呋喃并嘧啶骨架或苯并噻吩并嘧啶骨架。 所提供的发光元件包括该化合物。

公开(公告)号：US20160372688A1

公开(公告)日：2016-12-22

申请号：US15181605

申请日：2016-06-14

Applicant: Semiconductor Energy Laboratory Co., Ltd.

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

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

CPC classification number: H01L51/0085 ,  C07F15/0033 ,  C09K11/025 ,  C09K11/06 ,  C09K2211/1007 ,  C09K2211/1059 ,  C09K2211/185 ,  H01L51/0067 ,  H01L51/0072 ,  H01L51/0074 ,  H01L51/5012 ,  H01L51/5016 ,  H01L2251/5346 ,  H01L2251/5384 ,  H01L2251/552

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.

Abstract translation: 具有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含量低于第二有机化合物，第一有机化合物的HOMO含量低于第二有机化合物。 客体材料的LUMO含量高于第一有机化合物，客体材料的HOMO含量低于第二有机化合物。 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：US20160343960A1

公开(公告)日：2016-11-24

申请号：US15156679

申请日：2016-05-17

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Yui Yamada ,  Hideko INOUE

IPC: H01L51/00 ,  C07F15/00 ,  C09K11/06 ,  H01L27/32 ,  H01L51/52

CPC classification number: H01L51/0087 ,  C07D471/04 ,  C07F15/0086 ,  C09K11/06 ,  C09K2211/1007 ,  C09K2211/1029 ,  C09K2211/1059 ,  C09K2211/185 ,  C23C14/12 ,  H01L27/1214 ,  H01L27/3262 ,  H01L51/5016

Abstract: Provided is an organometallic complex which emits light with a short wavelength and has high emission efficiency and high heat resistance. The organometallic complex includes a central metal; and a first ligand, a second ligand, a third ligand, and a fourth ligand which are coordinated to the central metal. The first ligand includes a triazole skeleton including nitrogen bonded to the central metal. The second ligand includes an indolo[3,2-b]carbazole skeleton whose 6-position is bonded to the central metal or a pyrido[2,3-b:6,5-b′]diindole skeleton whose 6-position is bonded to the central metal. The third ligand includes a benzene skeleton whose carbon is bonded to the central metal. The fourth ligand includes a pyridine skeleton whose nitrogen is bonded to the central metal or a benzene skeleton whose carbon is bonded to the central metal.

Abstract translation: 提供了发射短波长并具有高发光效率和高耐热性的光的有机金属络合物。 有机金属络合物包括中心金属; 以及与中心金属配位的第一配体，第二配体，第三配体和第四配体。 第一配体包括三唑骨架，包括与中心金属结合的氮。 第二配体包括6-位结合到6-位结合的中心金属或吡啶并[2,3-b：6,5-b']二吲哚骨架的吲哚并[3,2-b]咔唑骨架 到中心金属。 第三配体包括其碳键合到中心金属上的苯骨架。 第四配体包括其氮键合到中心金属的吡啶骨架或碳结合到中心金属的苯骨架。

公开(公告)号：US20160293867A1

公开(公告)日：2016-10-06

申请号：US15184197

申请日：2016-06-16

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Hideko INOUE ,  Masakazu EGAWA ,  Satoshi SEO

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

CPC classification number: H01L51/0085 ,  C07F15/0033 ,  C07F15/0046 ,  C09K11/06 ,  C09K2211/1007 ,  C09K2211/1022 ,  C09K2211/1048 ,  C09K2211/1059 ,  C09K2211/185 ,  H01L27/3211 ,  H01L27/3244 ,  H01L51/008 ,  H01L51/0087 ,  H01L51/009 ,  H01L51/5016 ,  H01L51/5056 ,  H01L51/5203

Abstract: It is an object of the present invention to provide an organometallic complex that can emit phosphorescence. In the following general formula (G1), X represents —O— or —N(R10)—. R1 to R9 each represent any of hydrogen, an alkyl group or a cycloalkyl group having 1 to 6 carbon atoms, an alkoxy group having 1 to 6 carbon atoms, an alkoxycarbonyl group having 1 to 6 carbon atoms, an acyl group having 1 to 6 carbon atoms, an acyloxy group having 1 to 6 carbon atoms, a halogen group, a haloalkyl group, and an aryl group having 6 to 12 carbon atoms. In addition, R10 represents any of an alkyl group or a cycloalkyl group having 1 to 6 carbon atoms, an acyl group having 1 to 6 carbon atoms, an aryl group having 6 to 12 carbon atoms, and a heteroaryl group having 4 to 10 carbon atoms. Moreover, M represents an element belonging to Group 9 or 10.