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公开(公告)号：US20230354703A1
公开(公告)日：2023-11-02
申请号：US18305550
申请日：2023-04-24
Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.
Inventor： Nozomi KOMATSU , Yui YOSHIYASU , Nobuharu OHSAWA , Takeyoshi WATABE
IPC: H10K85/60 , C07D519/00 , C09K11/06
CPC classification number: H10K85/6572 , C07D519/00 , C09K11/06 , H10K50/13
Abstract: An electron-injection organic compound capable of providing a high-performance semiconductor device, and a light-emitting device including the organic compound are provided. An organic compound represented by General Formula (G1) and a light-emitting device including the organic compound are provided. Note that in General Formula (G1), R1 to R8 each independently represent any of hydrogen, an alkyl group having 1 to 6 carbon atoms, a substituted or unsubstituted cycloalkyl group having 6 to 30 carbon atoms, a substituted or unsubstituted aromatic hydrocarbon group having 6 to 30 carbon atoms, a substituted or unsubstituted heteroaromatic hydrocarbon group having 2 to 30 carbon atoms, and a group represented by Structural Formula (R-1). Note that at least two of R1 to R8 each represent a group other than hydrogen, and one to four of R1 to R8 each represent the group represented by Structural Formula (R-1).
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公开(公告)号：US20240147745A1
公开(公告)日：2024-05-02
申请号：US18275759
申请日：2022-02-02
Applicant: Semiconductor Energy Laboratory Co., Ltd.
Inventor： Yui YOSHIYASU , Naoaki HASHIMOTO , Tatsuyoshi TAKAHASHI , Sachiko KAWAKAMI , Satoshi SEO
CPC classification number: H10K50/11 , H10K50/16 , H10K50/171 , H10K59/95 , H10K71/233 , H10K85/111
Abstract: A light-emitting device with a high resolution and favorable characteristics manufactured by a photolithography method is provided. In the light-emitting device, a first light-emitting device and a second light-emitting device are adjacent each other. The first light-emitting device includes a first EL layer, and the second light-emitting device includes a second EL layer. The first EL layer includes at least a first light-emitting layer and a first electron-transport layer, and the second EL layer includes at least a second light-emitting layer and a second electron-transport layer. The first electron-transport layer contains a first heteroaromatic compound and a first organic compound, and the second electron-transport layer contains a second heteroaromatic compound and a second organic compound. Edge portions of the first light-emitting layer and the first electron-transport layer are aligned, and edge portions of the second light-emitting layer and the second electron-transport layer are substantially aligned. The distance between the first light-emitting device and the second light-emitting device facing each other is 2 μm to 5 μm.
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公开(公告)号：US20240008301A1
公开(公告)日：2024-01-04
申请号：US18214844
申请日：2023-06-27
Applicant: Semiconductor Energy Laboratory Co., Ltd.
Inventor： Toshiki Sasaki , Hiromitsu KIDO , Tsunenori SUZUKI , Nobuharu OHSAWA , Hideko YOSHIZUMI , Satoshi SEO , Satoko NUMATA , Eriko AOYAMA , Yui YOSHIYASU
CPC classification number: H10K50/13 , H10K50/16 , H10K50/15 , H10K85/649 , C09K11/06 , H10K2101/27
Abstract: A green phosphorescent light-emitting device with a long lifetime is provided. The light-emitting device includes a first electrode, a second electrode, and a light-emitting layer. The light-emitting layer is between the first electrode and the second electrode. The light-emitting layer includes a first organic compound, a second organic compound, and a phosphorescent light-emitting substance. The first organic compound includes a heteroaromatic ring skeleton and an aromatic hydrocarbon group. The second organic compound includes a bicarbazole skeleton. The lowest triplet excited level of the first organic compound is derived from only the aromatic hydrocarbon group. The energy of the lowest triplet excited level of the second organic compound is higher than or equal to 2.20 eV and lower than or equal to 2.65 eV.
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公开(公告)号：US20230354704A1
公开(公告)日：2023-11-02
申请号：US18305772
申请日：2023-04-24
Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.
Inventor： Yasuhiro NIIKURA , Sachiko KAWAKAMI , Naoaki HASHIMOTO , Yui YOSHIYASU
CPC classification number: H10K85/6572 , H05B33/10 , H10K50/13 , H10K50/16 , H10K59/805 , H10K71/231
Abstract: An increase in voltage of a light-emitting device manufactured through a step of forming an aluminum oxide film in contact with an organic compound layer is inhibited. An organic compound film is formed over a first electrode. An organic mask film containing an organic compound which has low solubility to water or a chemical solution including water as a solvent is formed over the organic compound film. An inorganic mask layer is formed over the organic mask film. Shapes of the organic mask film and the organic compound film are processed with the use of the inorganic mask layer, whereby an organic mask layer and an organic compound layer are formed. At least parts of the inorganic mask layer and the organic mask layer are removed with the use of water or a liquid including water as a solvent.
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Patent Agency Ranking
公开(公告)号：US20230348400A1
公开(公告)日：2023-11-02
申请号：US18305609
申请日：2023-04-24
Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.
Inventor： Takuya HARUYAMA , Sachiko KAWAKAMI , Yui YOSHIYASU , Nobuharu OHSAWA , Takeyoshi WATABE , Hideko YOSHIZUMI
CPC classification number: C07D239/70 , C07F1/08 , C07F7/0812 , C07F15/0033 , H10K85/342 , H10K85/371 , H10K85/40 , H10K85/633 , H10K85/655 , C07B2200/05
Abstract: A novel organic compound is provided. The organic compound is represented by General Formula (G1). In General Formula (G1), R1 to R16 each independently represent any one of hydrogen (including deuterium), a substituted or unsubstituted straight-chain alkyl group having 1 to 10 carbon atoms, a substituted or unsubstituted branched alkyl group having 3 to 10 carbon atoms, a substituted or unsubstituted alkoxy group having 1 to 10 carbon atoms, a substituted or unsubstituted cycloalkyl group having 3 to 12 carbon atoms, a substituted or unsubstituted cycloalkyl group having 4 to 10 carbon atoms and having a bridged structure, a trialkylsilyl group having 3 to 12 carbon atoms, a substituted or unsubstituted aryl group having 6 to 30 carbon atoms, and a substituted or unsubstituted heteroaryl group having 3 to 30 carbon atoms; at least one of R1 to R16 represents a substituent represented by General Formula (g1-1); and one or more, preferably two or more of R1 to R16 in General Formula (G1) represent substituents other than hydrogen (including deuterium) and the substituent represented by General Formula (g1-1).
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26.发明公开公开(公告)号：US20230329083A1
公开(公告)日：2023-10-12
申请号：US18025112
申请日：2021-08-30
Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.
Inventor： Yui YOSHIYASU , Masatoshi TAKABATAKE , Hideko YOSHIZUMI , Yuta KAWANO , Takeyoshi WATABE , Satoshi SEO
CPC classification number: H10K85/342 , C07F15/0033 , C09K11/06 , H10K50/11
Abstract: A novel organometallic complex with high heat resistance is provided. The organometallic complex includes a structure represented by General Formula (G1) below, in which iridium and a ligand are included, the ligand includes a pyrazine skeleton, iridium is bonded to nitrogen at the 1-position of the pyrazine skeleton, an aryl group including a cyano group as a substituent is bonded at the 5-position of the pyrazine skeleton, and each of the 3-position and the 6-position of the pyrazine skeleton is independently bonded to any one of hydrogen, an alkyl group, and an alkoxy group.
(In the formula, A represents a substituted or unsubstituted aromatic hydrocarbon group having 6 to 25 carbon atoms. In addition, Ar represents an aryl group having 6 to 25 carbon atoms and at least one cyano group as a substituent. Each of R1 and R2 independently represents any one of hydrogen, an alkyl group having 1 to 6 carbon atoms, and an alkoxy group having 1 to 6 carbon atoms.)-
27.发明公开公开(公告)号：US20230143281A1
公开(公告)日：2023-05-11
申请号：US17910103
申请日：2021-03-15
Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.
Inventor： Yui YOSHIYASU , Akira NAGASAKA , Hideko YOSHIZUMI , Toshiki SASAKI , Satoshi SEO
CPC classification number: H01L51/0074 , H01L51/0071 , H01L51/0073 , H01L51/0072 , H01L51/0054 , H01L51/5012
Abstract: A composition for a light-emitting device is provided. The composition is formed by mixing a first organic compound having a benzofuropyrimidine skeleton, and a second organic compound represented by General Formula (Q1):
R1 to R14 each independently represent hydrogen, an alkyl group having 1 to 6 carbon atoms, a substituted or unsubstituted monocyclic saturated hydrocarbon having 5 to 7 carbon atoms in a ring, a substituted or unsubstituted polycyclic saturated hydrocarbon having 7 to 10 carbon atoms in a ring, a substituted or unsubstituted aryl group having 6 to 13 carbon atoms in a ring, or a substituted or unsubstituted heteroaryl group having 3 to 20 carbon atoms in a ring. Furthermore, β1 and β2 each represent any of an unsubstituted β-naphthyl group, an unsubstituted biphenyl group, and an unsubstituted terphenyl group, and at least one of β1 and β2 is an unsubstituted β-naphthyl group.-
公开(公告)号：US20230089346A1
公开(公告)日：2023-03-23
申请号：US17865921
申请日：2022-07-15
Applicant: Semiconductor Energy Laboratory Co., Ltd.
Inventor： Sachiko KAWAKAMI , Yui YOSHIYASU , Nobuharu OHSAWA , Tsunenori SUZUKI , Toshiki SASAKI , Naoaki HASHIMOTO , Tomohiro KUBOTA , Satoshi SEO
IPC: H01L51/00
Abstract: A light-emitting device with high heat resistance is provided. The light-emitting layer device includes an anode, a cathode; and an EL layer between the anode and the cathode. The EL layer includes a light-emitting layer and a first layer. The first layer is between the light-emitting layer and the cathode. The light-emitting layer is in contact with the first layer. The light-emitting layer includes a first organic compound and a light-emitting substance. The first layer includes a second organic compound. The light-emitting substance is a substance that emits blue light. The first organic compound is an organic compound including a fused aromatic hydrocarbon ring. The second organic compound is an organic compound including a heteroaromatic ring skeleton including one selected from a pyridine ring, a diazine ring, and a triazine ring; and a bicarbazole skeleton.
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公开(公告)号：US20230076945A1
公开(公告)日：2023-03-09
申请号：US17863025
申请日：2022-07-12
Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.
Inventor： Sachiko KAWAKAMI , Yui YOSHIYASU , Nobuharu OHSAWA , Tsunenori SUZUKI , Toshiki SASAKI , Naoaki HASHIMOTO , Tomohiro KUBOTA , Satoshi SEO
IPC: H01L51/00
Abstract: A light-emitting device having favorable heat resistance is provided. The light-emitting device includes an anode, a cathode, and an EL layer positioned between the first anode and the cathode. The EL layer includes a light-emitting layer and a first layer. The first layer is positioned between the light-emitting layer and the cathode. The light-emitting layer and the first layer are in contact with each other. The light-emitting layer contains a first organic compound, a second organic compound, and a light-emitting substance. The first layer contains a third organic compound. The first organic compound and the third organic compound each have an electron-transport property. The second organic compound has a hole-transport property. The light-emitting substance emits red light. The first organic compound is represented by General Formula (G100). The third organic compound is represented by General Formula (G300).
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