Patents by Inventor Airi UEDA

Airi UEDA has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20240164134
    Abstract: A light-emitting device with high emission efficiency is provided. The light-emitting device includes an anode, a cathode, and an EL layer positioned between the anode and the cathode. The EL layer includes a light-emitting layer and an electron-transport layer; the light-emitting layer includes a light-emitting material; the electron-transport layer includes an organic compound having an electron-transport property and a metal complex of an alkali metal; the ordinary refractive index of the organic compound having an electron-transport property in a peak wavelength of light emitted from the light-emitting material is greater than or equal to 1.50 and less than or equal to 1.75; and the ordinary refractive index of the metal complex of an alkali metal in the peak wavelength of the light emitted from the light-emitting material is greater than or equal to 1.45 and less than or equal to 1.70.
    Type: Application
    Filed: January 26, 2024
    Publication date: May 16, 2024
    Applicant: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Yuta KAWANO, Airi UEDA, Takeyoshi WATABE, Nobuharu OHSAWA, Keito TOSU, Harue OSAKA, Satoshi SEO, Ryo NARUKAWA, Shiho NOMURA
  • Patent number: 11950447
    Abstract: A novel light-emitting device with a microcavity structure which can improve the emission efficiency compared to the conventional one is provided. In a light-emitting device with a microcavity structure that emits light in a near-infrared range, reflectance of one or both of a first electrode (reflective electrode) and a second electrode (semi-transmissive and semi-reflective electrode) with respect to light in a near-infrared range (e.g., light with a wavelength of 850 nm) is higher than the reflectance thereof with respect to light in a visible light range (greater than or equal to 400 nm and less than 750 nm).
    Type: Grant
    Filed: November 27, 2019
    Date of Patent: April 2, 2024
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Takeyoshi Watabe, Airi Ueda, Nobuharu Ohsawa, Satoshi Seo
  • Publication number: 20240065014
    Abstract: A light-emitting apparatus with low power consumption is provided. A light-emitting apparatus including a first light-emitting device and a first color conversion layer. The first light-emitting device includes an anode, a cathode, and an EL layer positioned between the anode and the cathode. The EL layer includes a layer including a material with a refractive index lower than or equal to 1.75 at 467 nm. The first color conversion layer includes a first substance capable of emission by absorbing light. Light emitted from the first light-emitting device enters the first color conversion layer.
    Type: Application
    Filed: October 23, 2023
    Publication date: February 22, 2024
    Applicant: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Shunpei YAMAZAKI, Takeyoshi WATABE, Tomohiro KUBOTA, Airi UEDA, Satoshi SEO, Nobuharu OHSAWA, Yuko KUBOTA
  • Patent number: 11903232
    Abstract: A light-emitting device is provided. The light-emitting device includes an intermediate layer, a first light-emitting unit, and a second light-emitting unit. The intermediate layer includes a region interposed between the first light-emitting unit and the second light-emitting unit. The intermediate layer has a function of supplying an electron to one of the first light-emitting unit and the second light-emitting unit and supplying a hole to the other. The first light-emitting unit includes a first light-emitting layer, the first light-emitting layer includes a first light-emitting material, the second light-emitting unit includes a second light-emitting layer, the second light-emitting layer includes a second light-emitting material, the second light-emitting layer has a first distance from the first light-emitting layer, and the first distance is longer than or equal to 5 nm and shorter than or equal to 65 nm.
    Type: Grant
    Filed: February 24, 2020
    Date of Patent: February 13, 2024
    Inventors: Takeyoshi Watabe, Airi Ueda, Nobuharu Ohsawa, Satoshi Seo
  • Publication number: 20240049578
    Abstract: A light-emitting device with low power consumption is provided. The light-emitting apparatus including a first light-emitting device and a first color conversion layer. The first light-emitting device includes an anode, a cathode, and an EL layer between the anode and the cathode. The EL layer includes a layer including a material with an ordinary refractive index higher than or equal to 1.50 and lower than 1.75 with respect to light with a wavelength longer than or equal to 455 nm and shorter than or equal to 465 nm. The first color conversion layer includes a first substance that absorbs light and emits light. An ordinary refractive index of the first color conversion layer with respect to light with a wavelength longer than or equal to 455 nm and shorter than or equal to 465 nm is higher than or equal to 1.40 and lower than or equal to 2.10. The first color conversion layer is on an optical path of the light emitted from the first light-emitting device to an outside of the light-emitting apparatus.
    Type: Application
    Filed: September 27, 2021
    Publication date: February 8, 2024
    Inventors: Takeyoshi WATABE, Airi UEDA, Yuta KAWANO, Tomohiro KUBOTA, Nobuharu OHSAWA, Satoshi SEO
  • Patent number: 11889712
    Abstract: A light-emitting device with high emission efficiency is provided. The light-emitting device includes an anode, a cathode, and an EL layer positioned between the anode and the cathode. The EL layer includes a light-emitting layer and an electron-transport layer; the light-emitting layer includes a light-emitting material; the electron-transport layer includes an organic compound having an electron-transport property and a metal complex of an alkali metal; the ordinary refractive index of the organic compound having an electron-transport property in a peak wavelength of light emitted from the light-emitting material is greater than or equal to 1.50 and less than or equal to 1.75; and the ordinary refractive index of the metal complex of an alkali metal in the peak wavelength of the light emitted from the light-emitting material is greater than or equal to 1.45 and less than or equal to 1.70.
    Type: Grant
    Filed: April 22, 2021
    Date of Patent: January 30, 2024
    Inventors: Yuta Kawano, Airi Ueda, Takeyoshi Watabe, Nobuharu Ohsawa, Keito Tosu, Harue Osaka, Satoshi Seo, Ryo Narukawa, Shiho Nomura
  • Publication number: 20240023431
    Abstract: Provided is a light-emitting device with high emission efficiency. Provided is a light-emitting device including an anode, a cathode, and an EL layer positioned therebetween; the EL layer includes a light-emitting layer, a first layer, and a second layer; the first layer is positioned between the anode and the light-emitting layer; the first layer is in contact with the second layer; the second layer contains a monoamine compound having an arylamine structure; a first group, a second group, and a third group are bonded to a nitrogen atom included in the amine in the monoamine compound; the first group is a group including a carbazole structure; the second group is a group including a dibenzofuran structure or a dibenzothiophene structure; the third group includes an aromatic hydrocarbon structure having 6 to 18 carbon atoms or a heteroaromatic hydrocarbon structure having 4 to 26 carbon atoms; and a refractive index of the first layer is lower than a refractive index of the light-emitting layer.
    Type: Application
    Filed: June 23, 2021
    Publication date: January 18, 2024
    Applicant: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Takeyoshi WATABE, Airi UEDA, Kyoko TAKEDA, Nobuharu OHSAWA, Satoshi SEO, Tomohiro KUBOTA, Takashi HIRAHARA
  • Patent number: 11800734
    Abstract: A light-emitting apparatus with low power consumption is provided. A light-emitting apparatus including a first light-emitting device and a first color conversion layer. The first light-emitting device includes an anode, a cathode, and an EL layer positioned between the anode and the cathode. The EL layer includes a layer including a material with a refractive index lower than or equal to 1.75 at 467 nm. The first color conversion layer includes a first substance capable of emission by absorbing light. Light emitted from the first light-emitting device enters the first color conversion layer.
    Type: Grant
    Filed: October 19, 2022
    Date of Patent: October 24, 2023
    Inventors: Shunpei Yamazaki, Takeyoshi Watabe, Tomohiro Kubota, Airi Ueda, Satoshi Seo, Nobuharu Ohsawa, Yuko Kubota
  • Publication number: 20230337453
    Abstract: A novel optical functional device that is highly convenient, useful, or reliable is provided. A light-emitting device includes a first electrode, a second electrode, and an EL layer. The first electrode has a first transmittance; the second electrode overlaps with the first electrode. The second electrode has a second transmittance higher than the first transmittance. The EL layer is interposed between the first electrode and the second electrode and includes a first region, a second region, and a third region. The first region is interposed between the second region and the third region. The second region is interposed between the first electrode and the first region and has a first refractive index. The third region is interposed between the first region and the second electrode and has a second refractive index. The second refractive index is lower than the first refractive index. The EL layer includes a first unit, a second unit, and an intermediate layer.
    Type: Application
    Filed: June 3, 2021
    Publication date: October 19, 2023
    Applicant: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Takeyoshi WATABE, Airi UEDA, Yuta KAWANO, Nobuharu OHSAWA, Satoshi SEO
  • Publication number: 20230337462
    Abstract: A novel light-emitting device that is highly convenient, useful, or reliable is provided. The light-emitting device includes a first electrode, a second electrode, a unit, and a first layer. The unit is positioned between the first electrode and the second electrode and includes a second layer, a third layer, and a fourth layer. The second layer is positioned between the third layer and the fourth layer and contains a light-emitting material. The third layer is positioned between the second layer and the second electrode, is in contact with the second layer, and contains a first material, and an organometallic complex of an alkali metal or an organometallic complex of an alkaline earth metal. The fourth layer is positioned between the first electrode and the second layer and contains a second material. The first layer is positioned between the first electrode and the unit and contains a second material and a material having an electron acceptor property. The second material has a first refractive index.
    Type: Application
    Filed: June 15, 2021
    Publication date: October 19, 2023
    Inventors: Airi UEDA, Takeyoshi WATABE, Yuta KAWANO, Nobuharu OHSAWA, Satoshi SEO
  • Publication number: 20230320130
    Abstract: A novel light-emitting device that is highly convenient, useful, or reliable is provided. The light-emitting device includes a function of emitting light, a first electrode, a second electrode, and a unit. The light has the maximum peak at a wavelength (lambda). The second electrode includes a region overlapping with the first electrode. The unit includes a region positioned between the first electrode and the second electrode. The unit includes a first layer, a second layer, and a third layer. The first layer includes a region positioned between the second layer and the third layer. The first layer contains a light-emitting material. The second layer includes a fourth layer and a fifth layer. The fifth layer includes a region positioned between the fourth layer and the first layer. The fourth layer contains a first organic compound. The first organic compound has a first refractive index with respect to light having the wavelength (lambda). The fifth layer is in contact with the fourth layer.
    Type: Application
    Filed: July 28, 2021
    Publication date: October 5, 2023
    Inventors: Takeyoshi WATABE, Airi UEDA, Hiromitsu KIDO, Nobuharu OHSAWA, Satoshi SEO
  • Publication number: 20230292544
    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.
    Type: Application
    Filed: July 13, 2021
    Publication date: September 14, 2023
    Applicant: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Yuta KAWANO, Airi UEDA, Takeyoshi WATABE, Nobuharu OHSAWA, Keito TOSU, Harue OSAKA, Satoshi SEO
  • Publication number: 20230276700
    Abstract: An inexpensive light-emitting device with high emission efficiency is provided. A light-emitting device including an anode, a cathode, and an EL layer positioned between the anode and the cathode is provided. 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 a heteropoly acid and an organic compound having a ?-electron rich aromatic ring or contains a heteropoly acid and an organic compound having a ?-electron rich heteroaromatic ring. The electron-transport region contains an organic compound with an electron-transport property. The ordinary refractive index of the organic compound with an electron-transport property is higher than or equal to 1.50 and lower than or equal to 1.
    Type: Application
    Filed: July 29, 2021
    Publication date: August 31, 2023
    Applicant: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Yuta Kawano, Airi UEDA, Takeyoshi WATABE, Nobuharu OHSAWA, Keito TOSU, Harue OSAKA, Satoshi SEO
  • Publication number: 20230276647
    Abstract: A light-emitting device with high emission efficiency is provided. A light-emitting device with a low driving voltage is provided. The light-emitting device includes a first electrode, a first layer over the first electrode, a second layer over the first layer, a light-emitting layer over the second layer, and a second electrode over the light-emitting layer. The first layer includes a first organic compound, and the second layer includes a second organic compound. The proportion of carbon atoms forming bonds by the sp3 hybrid orbitals to the total number of carbon atoms in the first organic compound is higher than or equal to 23 percent and lower than or equal to 55 percent. The second organic compound contains fluorine.
    Type: Application
    Filed: July 19, 2021
    Publication date: August 31, 2023
    Inventors: Yuta KAWANO, Airi UEDA, Takeyoshi WATABE, Nobuharu OHSAWA, Satoshi SEO
  • Publication number: 20230225149
    Abstract: A composite material with a low refractive index that can be used for a light-emitting device, a light-receiving device, a light-emitting and light-receiving device, and the like is provided. The composite material includes a first organic compound and a second organic compound, the proportion of carbon atoms forming bonds by the sp3 hybrid orbitals in the total number of carbon atoms of the first organic compound is greater than or equal to 23% and less than or equal to 55%, and the second organic compound contains fluorine. Alternatively, an optical device including an anode, a cathode, and a first layer, in which the composite material is included in the first layer, is provided.
    Type: Application
    Filed: June 16, 2021
    Publication date: July 13, 2023
    Inventors: Takeyoshi WATABE, Airi UEDA, Nobuharu OHSAWA, Satoshi SEO
  • Publication number: 20230180501
    Abstract: A light-emitting device with high emission efficiency is provided. An electronic device including an anode, a cathode, and an EL layer positioned between the anode and the cathode is provided. The EL layer includes a first layer, a second layer, and a third layer; the first layer is positioned between the anode and the second layer; the third layer is positioned between the second layer and the cathode; the first layer includes an organic compound having a hole-transport property; the third layer includes an organic compound having an electron-transport property; the organic compound having a hole-transport property and the organic compound having an electron-transport property have specific structures; the ordinary refractive index of each of the organic compound having a hole-transport property and 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.
    Type: Application
    Filed: June 22, 2021
    Publication date: June 8, 2023
    Applicant: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Yuta Kawano, Airi UEDA, Takeyoshi WATABE, Nobuharu OHSAWA, Satoshi SEO
  • Publication number: 20230095876
    Abstract: A light-emitting apparatus with low power consumption is provided. A light-emitting apparatus including a first light-emitting device and a first color conversion layer. The first light-emitting device includes an anode, a cathode, and an EL layer positioned between the anode and the cathode. The EL layer includes a layer including a material with a refractive index lower than or equal to 1.75 at 467 nm. The first color conversion layer includes a first substance capable of emission by absorbing light. Light emitted from the first light-emitting device enters the first color conversion layer.
    Type: Application
    Filed: October 19, 2022
    Publication date: March 30, 2023
    Applicant: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Shunpei Yamazaki, Takeyoshi WATABE, Tomohiro KUBOTA, Airi UEDA, Satoshi SEO, Nobuharu OHSAWA, Yuko KUBOTA
  • Publication number: 20230037397
    Abstract: A near-infrared organic EL device with favorable efficiency is provided. A light-emitting device including a first electrode, a second electrode, and an EL layer is provided; in which the EL layer is positioned between the first electrode and the second electrode; in which the EL layer emits light having a peak of an emission spectrum in a wavelength range of greater than or equal to 750 nm and less than or equal to 1000 nm; in which one of the first electrode and the second electrode is an electrode having a transmitting property with respect to light with a peak wavelength of the emission spectrum of the EL layer; in which a first layer is provided in contact with a surface of the electrode having a transmitting property, which is opposite to a surface facing the EL layer; in which the first layer contains an organic compound; and in which the first layer has the local maximum value of an extinction coefficient k in the visible light region.
    Type: Application
    Filed: November 18, 2020
    Publication date: February 9, 2023
    Applicant: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Takeyoshi WATABE, Airi UEDA, Nobuharu OHSAWA, Satoshi SEO
  • Publication number: 20230029353
    Abstract: An organic semiconductor device with low driving voltage is provided. The light-emitting device includes an anode, a cathode, and an EL layer between the anode and the cathode. The EL layer includes a hole-transport layer and alight-emitting layer. The hole-transport layer is positioned between the anode and the light-emitting layer. The hole-transport layer is not in contact with the anode. The hole-transport layer includes a transport layer material for a light-emitting device and the GSP_slope that is a potential gradient of a surface potential of an evaporated film of the material is higher than or equal to 20 (mV/nm).
    Type: Application
    Filed: May 9, 2022
    Publication date: January 26, 2023
    Inventors: Takeyoshi WATABE, Hiromi SEO, Airi UEDA, Yuta KAWANO, Tomohiro KUBOTA, Yasushi KITANO, Takao TOSU, Nobuharu OHSAWA, Satoshi SEO
  • Publication number: 20230027613
    Abstract: 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.
    Type: Application
    Filed: August 23, 2022
    Publication date: January 26, 2023
    Applicant: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Tomoya YAMAGUCHI, Hideko YOSHIZUMI, Hiromitsu KIDO, Airi UEDA, Satoshi SEO