-
11.发明申请公开(公告)号：US20180076390A1
公开(公告)日：2018-03-15
申请号：US15819231
申请日：2017-11-21
Applicant: Semiconductor Energy Laboratory Co., Ltd.
Inventor： Kaori OGITA , Hiromi NOWATARI , Harue OSAKA , Takahiro USHIKUBO , Satoshi SEO , Takako TAKASU
CPC classification number: H01L51/0052 , C07F15/0033 , C09K11/06 , C09K2211/1007 , C09K2211/1011 , C09K2211/1014 , C09K2211/1029 , C09K2211/1044 , C09K2211/1092 , H01L51/0058 , H01L51/0072 , H01L51/0085 , H05B33/14
Abstract: A composite material which includes an organic compound and an inorganic compound and has a high carrier-transport property is provided. A composite material having a good property of carrier injection into an organic compound is provided. A composite material in which light absorption due to charge-transfer interaction is unlikely to occur is provided. A composite material having a high visible-light-transmitting property is provided. A composite material including a hydrocarbon compound and an inorganic compound exhibiting an electron-accepting property with respect to the hydrocarbon compound is provided. The hydrocarbon compound has a substituent bonded to a naphthalene skeleton, a phenanthrene skeleton, or a triphenylene skeleton and has a molecular weight of 350 to 2000, and the substituent has one or more rings selected from a benzene ring, a naphthalene ring, a phenanthrene ring, and a triphenylene ring.
-
公开(公告)号：US20170309687A1
公开(公告)日：2017-10-26
申请号：US15483049
申请日：2017-04-10
Applicant: Semiconductor Energy Laboratory Co., Ltd.
Inventor： Takeyoshi WATABE , Satomi MITSUMORI , Nobuharu OHSAWA , Harue OSAKA , Kunihiko SUZUKI , Satoshi SEO
CPC classification number: H01L27/3213 , H01L27/322 , H01L27/323 , H01L27/3244 , H01L27/3281 , H01L51/5004 , H01L51/5016 , H01L51/5056 , H01L51/5072 , H01L51/5088 , H01L51/5092
Abstract: Providing a light-emitting element emitting light in a broad emission spectrum. A combination of a first organic compound and a second organic compound forms an exciplex. The first organic compound has a function of converting triplet-excitation energy into light emission. The lowest triplet excitation level of the second organic compound is higher than or equal to the lowest triplet excitation level of the first organic compound, and the lowest triplet excitation level of the first organic compound is higher than or equal to the lowest triplet excitation level of the exciplex. Light emission from a light-emitting layer includes light emission from the first organic compound and light emission from the exciplex.
-
13.发明申请公开(公告)号：US20170162798A1
公开(公告)日：2017-06-08
申请号：US15436272
申请日：2017-02-17
Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.
Inventor： Harue OSAKA , Takako TAKASU , Hiroshi KADOMA , Yuko KAWATA , Satoko SHITAGAKI , Hiromi NOWATARI , Tsunenori SUZUKI , Nobuharu OHSAWA , Satoshi SEO
IPC: H01L51/00 , C07D209/86 , C09K11/06 , H01L51/50
CPC classification number: H01L51/0072 , C07D209/86 , C09K11/06 , C09K2211/1007 , C09K2211/1011 , C09K2211/1029 , H01L51/0052 , H01L51/0054 , H01L51/0058 , H01L51/5004 , H01L51/5012 , H01L51/5016 , H01L51/5056 , H01L51/5088 , H01L2251/303 , H01L2251/5376 , H01L2251/552 , Y10S428/917
Abstract: A novel substance with which an increase in life and emission efficiency of a light-emitting element can be achieved is provided. A carbazole compound having a structure represented by General Formula (G1) is provided. Note that a substituent which makes the HOMO level and the LUMO level of a compound in which a bond of the substituent is substituted with hydrogen deep and shallow, respectively is used as each of substituents in General Formula (G1) (R1, R2, Ar3, and α3). Further, a substituent which makes the band gap (Bg) and the T1 level of a compound in which a bond of the substituent is substituted with hydrogen wide and high is used as each of the substituents in General Formula (G1) (R1, R2, Ar3, and α3).
-
14.发明申请Light-Emitting Element, Light-Emitting Device, Electronic Device, and Lighting Device 审中-公开发光元件，发光装置，电子装置和照明装置公开(公告)号：US20160380223A1
公开(公告)日：2016-12-29
申请号：US15258622
申请日：2016-09-07
Applicant: Semiconductor Energy Laboratory Co., Ltd.
Inventor： Yusuke Nonaka , Satoshi SEO , Harue OSAKA , Tsunenori SUZUKI , Takeyoshi WATABE
CPC classification number: H01L51/5012 , H01L51/0052 , H01L51/0054 , H01L51/0058 , H01L51/006 , H01L51/0067 , H01L51/0085 , H01L51/5004 , H01L51/5016 , H01L51/5056 , H01L51/5278 , H01L2251/552
Abstract: To increase emission efficiency of a fluorescent light-emitting element by efficiently utilizing a triplet exciton generated in a light-emitting layer. The light-emitting layer of the light-emitting element includes at least a host material and a guest material. The triplet exciton generated from the host material in the light-emitting layer is changed to a singlet exciton by triplet-triplet annihilation (TTA). The guest material (fluorescent dopant) is made to emit light by energy transfer from the singlet exciton. Thus, the emission efficiency of the light-emitting element is improved.
Abstract translation: 通过有效地利用在发光层中产生的三线态激子来提高荧光发光元件的发光效率。 发光元件的发光层至少包含主体材料和客体材料。 从发光层中的主体材料产生的三线态激子通过三重态三重态湮灭（TTA）改变为单线态。 客体材料（荧光掺杂剂）通过从单线态激子的能量转移而发光。 因此，发光元件的发光效率提高。
-
公开(公告)号：US20250098523A1
公开(公告)日：2025-03-20
申请号：US18899501
申请日：2024-09-27
Applicant: Semiconductor Energy Laboratory Co., Ltd.
Inventor： Shunpei YAMAZAKI , Satoshi SEO , Nobuharu OHSAWA , Satoko SHITAGAKI , Hideko INOUE , Hiroshi KADOMA , Harue OSAKA , Kunihiko SUZUKI , Yasuhiko TAKEMURA
IPC: H10K85/60 , H10K101/00 , H10K101/30
Abstract: A light-emitting element includes a light-emitting layer including a guest, an n-type host and a p-type host between a pair of electrodes, where the difference between the energy difference between a triplet excited state and a ground state of the n-type host (or p-type host) and the energy difference between a triplet excited state and a ground state of the guest is 0.15 eV or more. Alternatively, in such a light-emitting element, the LUMO level of the n-type host is higher than the LUMO level of the guest by 0.1 eV or more, or the HOMO level of the p-type host is lower than the HOMO level of the guest by 0.1 eV or more.
-
Patent Agency Ranking
公开(公告)号：US20240373746A1
公开(公告)日：2024-11-07
申请号：US18653569
申请日：2024-05-02
Applicant: Semiconductor Energy Laboratory Co., Ltd.
Inventor： Harue OSAKA , Takahiro USHIKUBO , Nobuharu OHSAWA , Satoshi SEO , Tsunenori SUZUKI
IPC: H10K85/60 , C07C211/54 , C09K11/02 , C09K11/06 , H05B33/14 , H10K50/11 , H10K50/14 , H10K50/15 , H10K50/16 , H10K50/19 , H10K59/32 , H10K85/30 , H10K101/10
Abstract: A triarylamine derivative represented by a general formula (G1) given below is provided. Note that in the formula, Ar represents either a substituted or unsubstituted phenyl group or a substituted or unsubstituted biphenyl group; α represents a substituted or unsubstituted naphthyl group; β represents either hydrogen or a substituted or unsubstituted naphthyl group; n and m each independently represent 1 or 2; and R1 to R8 each independently represent any of hydrogen, an alkyl group having 1 to 6 carbon atoms, or a phenyl group.
-
17.发明公开公开(公告)号：US20240172461A1
公开(公告)日：2024-05-23
申请号：US18496520
申请日：2023-10-27
Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.
Inventor： Harue OSAKA , Satoshi SEO , Nobuharu OHSAWA , Kazuki KAJIYAMA , Hiromitsu KIDO
CPC classification number: H10K50/11 , C09K11/06 , H10K85/6572 , H10K2101/10
Abstract: A highly efficient light-emitting device is provided. The light-emitting device includes a light-emitting layer between a first electrode and a second electrode. The light-emitting layer includes at least a light-emitting substance and a first substance, the half width of an emission spectrum of the light-emitting substance is 0.35 eV or less, the luminescence lifetime of delayed fluorescence caused by photoexcitation of the first substance is shorter at a first temperature than at a second temperature, the first temperature is lower than the second temperature, and the first temperature and the second temperature are each higher than or equal to 10 K and lower than or equal to 300 K.
-
公开(公告)号：US20240172460A1
公开(公告)日：2024-05-23
申请号：US18496382
申请日：2023-10-27
Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.
Inventor： Harue OSAKA , Satoshi SEO , Nobuharu OHSAWA , Kazuki KAJIYAMA , Hiromitsu KIDO
CPC classification number: H10K50/11 , C09K11/06 , H10K85/40 , H10K85/631 , H10K85/654 , H10K85/6572 , H10K85/6574 , H10K2101/25
Abstract: A light-emitting device with favorable carrier balance is provided. The light-emitting device includes a light-emitting layer between a first electrode and a second electrode. The light-emitting layer includes at least a first substance and a light-emitting substance, the first substance includes an organic compound having one or more of a carbazole ring, an aromatic amine skeleton, and a π-electron deficient heteroaromatic ring, a luminescence lifetime of delayed fluorescence caused by photoexcitation of the light-emitting substance is shorter at a first temperature than at a second temperature, the first temperature is lower than the second temperature, and the first temperature and the second temperature are each higher than or equal to 10 K and lower than or equal to 300 K.
-
公开(公告)号：US20230329105A1
公开(公告)日：2023-10-12
申请号：US18130684
申请日：2023-04-04
Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.
Inventor： Satoko NUMATA , Harue OSAKA , Sachiko KAWAKAMI , Takashi SHINGU , Anna TADA , Yui YOSHIYASU , Yasuhiro NIIKURA , Eriko AOYAMA , Naoaki HASHIMOTO , Satoshi SEO
CPC classification number: H10K85/6572 , H10K85/633 , H10K50/16 , H10K85/342 , H10K85/6574 , H10K85/636
Abstract: An organic semiconductor device that can achieve high resolution and favorable reliability is provided. The organic semiconductor device is one of a plurality of light-emitting devices formed over an insulating layer, which includes a first electrode, a second electrode, and an organic compound layer. The organic compound layer is positioned between the first electrode and the second electrode. The organic compound layer includes a layer containing a first compound. When differential scanning calorimetry is performed on the first compound in such a manner that a cooling step is performed from the state in which the first compound is melted in a first heating step and a second heating step is successively performed, an exothermic peak is not observed in the cooling step and an exothermic peak and a melting point peak are not observed in the second heating step.
-
20.发明公开公开(公告)号：US20230292544A1
公开(公告)日：2023-09-14
申请号：US18016717
申请日：2021-07-13
Applicant: Semiconductor Energy Laboratory Co., Ltd.
Inventor： Yuta KAWANO , Airi UEDA , Takeyoshi WATABE , Nobuharu OHSAWA , Keito TOSU , Harue OSAKA , Satoshi SEO
IPC: H10K50/858 , H10K85/30 , H10K85/60 , C09K11/06 , H10K59/35
CPC classification number: H10K50/858 , C09K11/06 , H10K59/35 , H10K85/342 , H10K85/654 , H10K85/6572 , C09K2211/1029 , C09K2211/185 , H10K50/166
Abstract: Provided is an inexpensive light-emitting device with high emission efficiency. Provided is a light-emitting device including an anode, a cathode, an EL layer positioned between the anode and the cathode; the EL layer includes a hole-transport region, a light-emitting layer, and an electron-transport region; the hole-transport region is positioned between the anode and the light-emitting layer; the electron-transport region is positioned between the cathode and the light-emitting layer; the hole-transport region contains any one of a sulfonic acid compound, a fluorine compound, and a metal oxide; the electron-transport region contains an organic compound having an electron-transport property; and an ordinary refractive index of the organic compound having an electron-transport property with respect to light with a wavelength greater than or equal to 455 nm and less than or equal to 465 nm is higher than or equal to 1.50 and lower than or equal to 1.75.
-
-
-
-
-
-
-
-
-
Search Results
86
records
(took 0.026 seconds)
