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21.发明申请公开(公告)号：US20230027613A1
公开(公告)日：2023-01-26
申请号：US17893355
申请日：2022-08-23
发明人： Tomoya YAMAGUCHI , Hideko YOSHIZUMI , Hiromitsu KIDO , Airi UEDA , Satoshi SEO
IPC分类号： H01L51/00 , C07D491/048
摘要： A novel organic compound is provided. That is, a novel organic compound that is effective in improving element characteristics and reliability is provided. The organic compound is represented by General Formula (G1) having a dibenzobenzofuroquinoxaline skeleton or a dibenzobenzothienoquinoxaline skeleton. In General Formula (G1), Q represents O or S, at least one of R1 to R12 represents a first group having a substituted or unsubstituted condensed aromatic ring or condensed heteroaromatic ring having 3 to 30 carbon atoms, and the other or others of R1 to R12 each independently represent any one of hydrogen, a halogeno group, a hydroxy group, an amino group, a nitro group, and a group having 1 to 50 carbon atoms.
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公开(公告)号：US20220388958A1
公开(公告)日：2022-12-08
申请号：US17861363
申请日：2022-07-11
发明人： Hiroko NOMURA , Harue OSAKA , Takahiro USHIKUBO , Sachiko KAWAKAMI , Satoshi SEO , Satoko SHITAGAKI
IPC分类号： C07D209/86 , H01L51/00
摘要： To provide a light-emitting element having high luminous efficiency and to provide a light-emitting device and an electronic device which consumes low power and is driven at low voltage, a carbazole derivative represented by the general formula (1) is provided. In the formula, α1, α2, α3, and α4 each represent an arylene group having less than or equal to 13 carbon atoms; Ar1 and Ar2 each represent an aryl group having less than or equal to 13 carbon atoms; R1 represents any of a hydrogen atom, an alkyl group having 1 to 6 carbon atoms, a substituted or unsubstituted phenyl group, and a substituted or unsubstituted biphenyl group; and R2 represents any of an alkyl group having 1 to 6 carbon atoms, a substituted or unsubstituted phenyl group, and a substituted or unsubstituted biphenyl group. In addition, l, m, and n are each independently 0 or 1.
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公开(公告)号：US20220231248A1
公开(公告)日：2022-07-21
申请号：US17603692
申请日：2020-04-07
发明人： Shunpei Yamazaki , Satoshi SEO , Harue OSAKA
IPC分类号： H01L51/50
摘要： A display device having a long lifetime is provided. The display device includes a first light-emitting device and a second light-emitting device. The first light-emitting device includes a first electrode and a common electrode. The second light-emitting device includes a second electrode and a common electrode. The first light-emitting device includes a first light-emitting layer and an electron-transport layer in this order from a side of one of the first electrode and the common electrode which functions as an anode. The second light-emitting device includes a second light-emitting layer between the second electrode and the common electrode. The first light-emitting layer contains a first organic compound emitting light of a first color. The second light-emitting layer contains a second organic compound emitting light of a second color. The electron-transport layer contains a third organic compound and a first substance. The third organic compound is an electron-transport material. The first substance is a metal, a metallic salt, a metal oxide, or an organometallic salt. The electron-transport layer includes a first region and a second region which differ in a concentration of the first substance.
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公开(公告)号：US20220140273A1
公开(公告)日：2022-05-05
申请号：US17431246
申请日：2020-02-14
发明人： Shunpei YAMAZAKI , Satoshi SEO , Harue OSAKA
摘要： A display device having a long lifetime is provided. A large-sized display device is provided. A display device includes a first light-emitting device and a second light-emitting device. The first light-emitting device includes a hole-injection layer, a first light-emitting layer, and an electron-transport layer. The second light-emitting device includes a second light-emitting layer. The hole-injection layer contains a first compound and a second compound. The first light-emitting layer contains a third compound that emits light of a first color. The second light-emitting layer contains a fourth compound that emits light of a second color. The electron-transport layer contains a fifth compound. The first compound has a property of accepting electrons from the second compound. The second compound has a HOMO level higher than or equal to −5.7 eV and lower than or equal to −5.4 eV. The fifth compound has a HOMO level higher than or equal to −6.0 eV and an electron mobility higher than or equal to 1×10{circumflex over ( )}−7 cm{circumflex over ( )}/Vs and lower than or equal to 5×10{circumflex over ( )}−5 cm{circumflex over ( )}/Vs when the square root of electric field strength [V/cm] is 600.
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25.发明申请公开(公告)号：US20220077391A1
公开(公告)日：2022-03-10
申请号：US17412450
申请日：2021-08-26
发明人： Nobuharu OHSAWA , Satoshi SEO , Takeyoshi WATABE , Airi UEDA , Tomohiro KUBOTA , Takashi HIRAHARA
IPC分类号： H01L51/00 , C07C211/61
摘要： A light-emitting device with high emission efficiency and low driving voltage is provided. A light-emitting apparatus, an electronic device, and a lighting device with low power consumption are provided. The following organic compound is provided: the organic compound has an arylamine structure; and when the organic compound is deposited to be a film, the ordinary refractive index of the deposited film with respect to light with a wavelength of 458 nm is greater than or equal to 1.50 and less than or equal to 1.75, the birefringence Δn of the deposited film with respect to light with a wavelength of 458 nm is greater than or equal to 0 and less than or equal to 0.008, or the alignment order parameter of the deposited film with respect to light with a wavelength corresponding to the longest wavelength where an absorption peak appears in the absorption spectrum is greater than or equal to −0.07 and less than or equal to 0.00.
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26.发明申请公开(公告)号：US20220029105A1
公开(公告)日：2022-01-27
申请号：US17276289
申请日：2019-09-12
发明人： Tomoka HARA , Keito TOSU , Hideko YOSHIZUMI , Toshiki SASAKI , Hiromitsu KIDO , Satoshi SEO
IPC分类号： H01L51/00 , C07D519/00 , C07D491/048 , C07D495/04
摘要： A novel organic compound, a benzofuropyrimidine derivative or a benzothienopyrimidine derivative is provided. The organic compound has a structure in which a benzothienocarbazolyl ring, a benzofurocarbazolyl ring, an indolocarbazolyl ring, or an indenocarbazolyl ring is bonded to the 8-position of a benzofuropyrimidine ring or a benzothienopyrimidine ring directly or through an aromatic hydrocarbon ring. That is, the organic compound is represented by General Formula (G1) below.
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公开(公告)号：US20220028937A1
公开(公告)日：2022-01-27
申请号：US17496909
申请日：2021-10-08
发明人： Nobuharu OHSAWA , Satoshi SEO , Toshiki SASAKI
摘要： One object of this invention is to provide a novel light-emitting device with low power consumption. The light-emitting device includes a first light-emitting element and a second light-emitting element. The first light-emitting element includes a first electrode, a second electrode, and a light-emitting layer. The second light-emitting element includes the first electrode, a third electrode, and the light-emitting layer. The second electrode comprises only a first conductive film, and the third electrode comprises a second conductive film and a third conductive film. The first electrode has a function of reflecting light. The second conductive film has functions of reflecting light and transmitting light. The first conductive film and the third conductive film each have a function of transmitting light.
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公开(公告)号：US20210395271A1
公开(公告)日：2021-12-23
申请号：US17287407
申请日：2019-11-20
发明人： Satoshi SEO , Nobuharu OHSAWA , Toshiki SASAKI , Hiromitsu KIDO
IPC分类号： C07D519/00 , H01L51/00
摘要： An object is to provide a novel composition for an EL device. Another object of one embodiment of the present invention is to provide a composition for an EL device capable of easily manufacturing an EL device with stable characteristics. Another object of one embodiment of the present invention is to provide a composition for an EL device capable of manufacturing an EL device with stable characteristics at low cost. The present inventors have studied a composition for an EL device in which different substances are mixed in advance and which does not cause change in characteristics of the EL device even when evaporation is repeated with use of the composition. As a result, a composition for an EL device in which a difference in the 5% weight loss temperature under a pressure lower than or equal to 0.1 Pa between contained substances is less than or equal to 50° C. is provided.
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29.发明申请公开(公告)号：US20210363151A1
公开(公告)日：2021-11-25
申请号：US17058435
申请日：2019-05-21
发明人： Satoshi SEO , Satomi WATABE , Hideko YOSHIZUMI , Hiromitsu KIDO , Toshiki SASAKI , Akira NAGASAKA , Yuta KAWANO
IPC分类号： C07D491/048 , C07D513/04 , C07D519/00 , H01L51/00
摘要： A benzofuropyrimidine derivative or benzothienopyrimidine derivative that is a novel organic compound is provided. An organic compound represented by General Formula (G1) below. Q represents oxygen or sulfur. Ar1, Ar2, Ar3, and Ar4 each independently represent an aromatic hydrocarbon ring, and the number of carbon atoms included in the aromatic hydrocarbon ring is 6 to 25. m and n are each 0 or 1. A is a group having 12 to 100 carbon atoms in total and includes one or more of a benzene ring, a naphthalene ring, a fluorene ring, a phenanthrene ring, a triphenylene ring, a heteroaromatic ring including a dibenzothiophene ring, a heteroaromatic ring including a dibenzofuran ring, a heteroaromatic ring including a carbazole ring, a benzimidazole ring, and a triphenylamine structure.
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公开(公告)号：US20210351224A1
公开(公告)日：2021-11-11
申请号：US17273032
申请日：2019-08-26
发明人： Shunpei YAMAZAKI , Satoshi SEO , Koji KUSUNOKI , Takayuki IKEDA
IPC分类号： H01L27/146
摘要： A thin imaging device including a light source is provided. The imaging device includes a light-emitting device which emits infrared light. Infrared light emitted by the light-emitting device and reflected by a subject is received by a photoelectric conversion device included in a pixel circuit. Since an EL element is used as the light-emitting device, a thin imaging device with a light source can be formed. A pixel circuit utilizing an oxide semiconductor transistor having a property of low off-state current is used, whereby image capturing by a global shutter method is possible and a distortion-free image can be obtained even when the subject is moving.
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