Patents by Inventor Masanobu Mizusaki

Masanobu Mizusaki 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: 20240114715
    Abstract: A light-emitting element includes: a lower electrode that reflects light; an upper electrode that transmits and reflects light; and a lower light-emitting layer and an upper light-emitting layer both between the lower electrode and the upper electrode, wherein a first viewing angle at which light emitted by the lower light-emitting layer with a selected wavelength achieves a maximum resonance effect differs from a second viewing angle at which light emitted by the upper light-emitting layer with the selected wavelength achieves a maximum resonance effect.
    Type: Application
    Filed: February 8, 2021
    Publication date: April 4, 2024
    Inventor: Masanobu MIZUSAKI
  • Patent number: 11917858
    Abstract: The display device includes a light-emitting element layer provided with a plurality of light-emitting elements, and a TFT layer that is provided below the light-emitting element layer and includes TFT configured to drive the plurality of light-emitting elements. Further, at least one thermal insulation layer configured to thermally insulate the plurality of light-emitting elements from external heat is provided, and the thermal insulation layer includes a molybdenum-containing complex and a polyphenylene sulfide-based resin.
    Type: Grant
    Filed: September 6, 2018
    Date of Patent: February 27, 2024
    Assignee: SHARP KABUSHIKI KAISHA
    Inventor: Masanobu Mizusaki
  • Publication number: 20240015996
    Abstract: Provided is a display device that can retard the degradation of light-emitting elements even when the display device is used in a high temperature environment. A display device includes a TFT layer, a light-emitting element layer provided with a plurality of light-emitting elements, a heat dissipating layer, an extraction member, and a thermal insulation layer that insulates the light-emitting elements from external heat. The thermal insulation layer is made from a material containing a first resin in which a metal complex compound having an ammonium salt as a ligand is dispersed. The TFT layer is formed between the heat dissipating layer and the light-emitting element layer. The heat dissipating layer overlaps the light-emitting elements. The thermal insulation layer surrounds the heat dissipating layer. The extraction member is formed to overlap the thermal insulation layer. The heat dissipating layer and the thermal insulation layer are in direct contact with the TFT layer.
    Type: Application
    Filed: September 21, 2023
    Publication date: January 11, 2024
    Inventors: MASANOBU MIZUSAKI, MASAKAZU SHIBASAKI
  • Patent number: 11805672
    Abstract: Provided is a display device that can retard the degradation of light-emitting elements even when the display device is used in a high temperature environment. A display device includes a TFT layer, a light-emitting element layer provided with a plurality of light-emitting elements, a heat dissipating layer, an extraction member, and a thermal insulation layer that insulates the light-emitting elements from external heat. The thermal insulation layer is made from a material containing a first resin in which a metal complex compound having an ammonium salt as a ligand is dispersed. The TFT layer is formed between the heat dissipating layer and the light-emitting element layer. The heat dissipating layer overlaps the light-emitting elements. The thermal insulation layer surrounds the heat dissipating layer. The extraction member is formed to overlap the thermal insulation layer. The heat dissipating layer and the thermal insulation layer are in direct contact with the TFT layer.
    Type: Grant
    Filed: July 1, 2022
    Date of Patent: October 31, 2023
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Masanobu Mizusaki, Masakazu Shibasaki
  • Publication number: 20230329088
    Abstract: Provided is a display element having a function layer containing a phenylamine-based compound and a compound having a siloxane skeleton.
    Type: Application
    Filed: September 24, 2020
    Publication date: October 12, 2023
    Inventor: MASANOBU MIZUSAKI
  • Publication number: 20230225174
    Abstract: A light-emitting device includes a light-emitting element and an insoluble film covering the light-emitting element. The insoluble film includes one layer each of an inorganic insoluble layer and an organic insoluble layer. The organic insoluble layer contains a polymer material that includes, in the molecular chain, an inorganic atom, and a nitrogen atom and/or an oxygen atom.
    Type: Application
    Filed: July 7, 2020
    Publication date: July 13, 2023
    Inventor: MASANOBU MIZUSAKI
  • Patent number: 11675233
    Abstract: The present, invention provides a liquid crystal display device that can exhibit excellent retardation stability against heat and that can prevent reduction in contrast ratio due to scattering even when the liquid crystal display device includes a retardation layer formed by polymerization of a reactive monomer, and a method for producing a liquid crystal display device suitable for production of the liquid crystal display device. The liquid crystal display device of the present invention includes paired substrates and a liquid crystal layer provided between the paired substrates. At least one of the paired substrates includes a retardation layer formed from a polymer of at least one type of monomer. The at least one type of monomer includes a photo-aligning monomer that is to be aligned by polarized light.
    Type: Grant
    Filed: March 22, 2018
    Date of Patent: June 13, 2023
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Masanobu Mizusaki, Yuichi Kawahira
  • Publication number: 20230172035
    Abstract: A display device includes: s light-emitting element layer (11) including, on a thin film transistor layer (6), a plurality of light-emitting elements (11R, 11G, 11B) that each include a first electrode (7), a light-emitting-layer-including functional layer (9R, 9G, 9B), and a second electrode (10) and that emit light of different colors; and a sealing layer (12) disposed on the light-emitting element layer (11) so as to seal the light-emitting element layer (11), wherein the sealing layer (12) includes a first inorganic sealing film (12a) on the light-emitting element layer (11) and an organic sealing film (12b) on the first inorganic sealing film (12a), and the organic sealing film (12b) contains a polymer compound and a cyclic compound.
    Type: Application
    Filed: May 18, 2020
    Publication date: June 1, 2023
    Inventor: MASANOBU MIZUSAKI
  • Patent number: 11656503
    Abstract: The sealing material composition of the present disclosure includes a lactone-based compound having at least two functional groups A represented by the Chemical Formula (1) and a curing agent that is thermally reactive with the lactone-based compound and contains a compound having at least two of one or more kinds of functional groups B selected from the group consisting of a mercaptan group, a hydroxyl group, and a secondary amine group where, a is an integer of 0 or 1, and * is an atomic bond.
    Type: Grant
    Filed: July 6, 2018
    Date of Patent: May 23, 2023
    Assignee: SHARP KABUSHIKI KAISHA
    Inventor: Masanobu Mizusaki
  • Publication number: 20230143536
    Abstract: A light-emitting element includes an anode electrode and a cathode electrode, and is provided with a first hole transport layer, a second hole transport layer, a light-emitting layer, a first electron transport layer, and a second electron transport layer. At a HOMO level, an energy level difference between the second hole transport layer and the light-emitting layer on the second hole transport layer side is from 0.0 eV to 0.15 eV, and at a LUMO level, an energy level difference between the first electron transport layer and the light-emitting layer on the first electron transport layer side is from 0.0 eV to 0.15 eV. The second electron transport layer is a mixed layer that includes an organic material having electron transport properties and an electron-accepting material and contains the electron-accepting material in an amount greater than 50 mass %.
    Type: Application
    Filed: March 26, 2020
    Publication date: May 11, 2023
    Inventors: HIROSHI TSUCHIYA, MASANOBU MIZUSAKI
  • Publication number: 20230134846
    Abstract: A light-emitting element is provided with an interlayer organic layer having electron transport properties. At a HOMO level, an energy level difference between a first hole transport layer and the second hole transport layer is from 0.0 eV to 0.20 eV, and at a LUMO level, an energy level difference between a first electron transport layer and a second electron transport layer, and an energy level difference between the first electron transport layer and the blue light-emitting layer are each from 0.0 eV to 0.20 eV. Alternatively, the light-emitting element is provided with the interlayer organic layer between the electron transport layer and the cathode electrode, the electron transport layer is formed from a lithium quinolate complex and an organic compound having electron transport properties, and the interlayer organic layer is formed from an organic compound including an amino group or a hydroxyl group.
    Type: Application
    Filed: March 26, 2020
    Publication date: May 4, 2023
    Inventors: MASANOBU MIZUSAKI, MASAKAZU SHIBASAKI
  • Patent number: 11634637
    Abstract: There is provided a composition including a first polymer compound having a photoreactive functional group, a second polymer compound, and an ultraviolet absorber having a benzotriazole skeleton, wherein a content of the ultraviolet absorber is less than 20 parts by mass per 100 parts by mass of a total of the first polymer compound and the second polymer compound.
    Type: Grant
    Filed: May 24, 2018
    Date of Patent: April 25, 2023
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Tomonori Itoh, Masanobu Mizusaki
  • Publication number: 20230046964
    Abstract: Alignment films include a copolymer of a specific vertical alignment monomer and at least one of a specific anthracene-based monomer and a specific benzyl-based monomer.
    Type: Application
    Filed: December 9, 2019
    Publication date: February 16, 2023
    Inventor: MASANOBU MIZUSAKI
  • Patent number: 11581642
    Abstract: The sealing material composition of the disclosure includes an unsaturated carbonyl compound having at least two unsaturated carbonyl groups and a curing agent that is thermally reactive with the unsaturated carbonyl compound and contains a compound having at least two of one or more kinds of functional groups selected from the group consisting of a mercaptan group, a hydroxyl group, and a secondary amine group.
    Type: Grant
    Filed: August 3, 2018
    Date of Patent: February 14, 2023
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Masanobu Mizusaki, Kiyoshi Minoura
  • Patent number: 11530357
    Abstract: The present invention provides a liquid crystal alignment agent having high thermal stability and high solvent solubility, and a liquid crystal panel in which occurrence of ghosting and stain and a decrease in contrast are suppressed even under environments at high temperatures long period of time. The present invention is a liquid crystal alignment agent including a copolymer including a structure represented by a chemical formula (1) below, and a solvent. In the formula, X is a specified structure including a cyclic hydrocarbon group, Y1 is a specified structure including a cyclic hydrocarbon group, R1 represents a homogeneous alignment group, a homeotropic alignment group, or a photoreactive functional group, and Z1 and Z2 are the same or different, and represent an —NH— group, an —O— group, or a —S— group.
    Type: Grant
    Filed: June 29, 2018
    Date of Patent: December 20, 2022
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Masanobu Mizusaki, Hiroshi Tsuchiya
  • Publication number: 20220384754
    Abstract: A light-emitting element includes at least: an anode; a cathode; a light-emitting layer between the anode and the cathode; and a hole-transport layer between the anode and the light-emitting layer. The hole-transport layer is a film containing a mixture of a hole-transport material and a polysiloxane-based polymer. The light-emitting element further includes: a first electron-transport layer between the light-emitting layer and the cathode; and a second electron-transport layer between the first electron-transport layer and the cathode. A value of a LUMO level of the first electron-transport layer is as high as, or higher than, a value of a LUMO level of the second electron-transport layer, and the value of the LUMO level of the first electron-transport layer is higher than a value of a LUMO level of the light-emitting layer in contact with the first electron-transport layer.
    Type: Application
    Filed: November 12, 2019
    Publication date: December 1, 2022
    Inventor: MASANOBU MIZUSAKI
  • Publication number: 20220336776
    Abstract: Provided is a display device that can retard the degradation of light-emitting elements even when the display device is used in a high temperature environment. A display device includes a TFT layer, a light-emitting element layer provided with a plurality of light-emitting elements, a heat dissipating layer, an extraction member, and a thermal insulation layer that insulates the light-emitting elements from external heat. The thermal insulation layer is made from a material containing a first resin in which a metal complex compound having an ammonium salt as a ligand is dispersed. The TFT layer is formed between the heat dissipating layer and the light-emitting element layer. The heat dissipating layer overlaps the light-emitting elements. The thermal insulation layer surrounds the heat dissipating layer. The extraction member is formed to overlap the thermal insulation layer. The heat dissipating layer and the thermal insulation layer are in direct contact with the TFT layer.
    Type: Application
    Filed: July 1, 2022
    Publication date: October 20, 2022
    Inventors: MASANOBU MIZUSAKI, MASAKAZU SHIBASAKI
  • Patent number: 11435609
    Abstract: The present invention provides a liquid crystal display device that, with photo-alignment films, can maintain a favorable voltage holding ratio for a long period of time and prevent generation of image sticking and stains on the display screen. The liquid crystal display device includes: an active-matrix liquid crystal panel; and a backlight, the liquid crystal panel including a liquid crystal layer, paired substrates holding the liquid crystal layer in between, and alignment films disposed on the liquid crystal layer side surfaces of the respective substrates, the alignment films each being a photo-alignment film formed from a material exhibiting photo-alignment performance, the liquid crystal layer containing a liquid crystal material and a radical scavenger.
    Type: Grant
    Filed: January 15, 2021
    Date of Patent: September 6, 2022
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Koichi Miyachi, Masanobu Mizusaki, Tsuyoshi Okazaki, Hiroshi Tsuchiya, Isamu Miyake, Toshihiro Matsumoto
  • Patent number: 11384169
    Abstract: A sealant composition with which a decrease in voltage holding rate is less likely to occur in a liquid crystal cell for a scanning antenna, the sealant composition according to the present invention includes a photo-radical polymerization initiator that generates a radical through application of light with a wavelength of 450 nm or greater and a polymerization component that contains a polymerizable functional group that is polymerizable using the radical.
    Type: Grant
    Filed: August 18, 2017
    Date of Patent: July 12, 2022
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Masanobu Mizusaki, Tadashi Ohtake
  • Patent number: 11366357
    Abstract: The present invention is a liquid crystal display device including a pair of substrates, a liquid crystal layer which is sandwiched between the pair of substrates and contains a liquid crystal material, and an alignment layer which is in contact with the liquid crystal layer. In this liquid crystal display device, at least one of the pair of substrates has a retardation layer on a side toward the liquid crystal layer, the alignment layer aligns a liquid crystal compound in the liquid crystal material, the retardation layer contains a polymer formed by polymerization of at least one monomer, and the at least one monomer includes a specific monomer.
    Type: Grant
    Filed: March 22, 2018
    Date of Patent: June 21, 2022
    Assignee: SHARP KABUSHIKI KAISHA
    Inventor: Masanobu Mizusaki