Patents by Inventor Takeshi Hirase

Takeshi Hirase 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).

  • Organic el display device and method for producing organic el display device
    Patent number: 10388904
    Abstract: Provided is an organic EL display device that includes: a substrate; a first electrode provided on the substrate; an organic EL layer provided on the first electrode; a second electrode provided on the organic EL layer; and a sealing film layer provided so as to cover the second electrode. The sealing film layer has protruding portions and recessed portions.
    Type: Grant
    Filed: November 4, 2015
    Date of Patent: August 20, 2019
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Seiji Fujiwara, Takeshi Hirase, Tetsuya Okamoto, Tohru Senoo, Tohru Sonoda, Daichi Nishikawa, Mamoru Ishida
  • Organic EL display device
    Patent number: 10355244
    Abstract: A the organic EL display 1 includes: a first substrate 10; an organic EL element 4 provided above the first substrate 10; and a multilayer sealing film 2 provided above the first substrate 10 to cover the organic EL element 4, and including a barrier layer and a buffer layer lower in hardness than the barrier layer. The organic EL element covered with the multi layer sealing film includes a protrusion, and a relationship (d/h)<2 holds where h is a height of the protrusion directly below the buffer layer and d is a thickness of the buffer layer.
    Type: Grant
    Filed: July 31, 2018
    Date of Patent: July 16, 2019
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Tohru Sonoda, Takeshi Hirase, Tetsuya Okamoto, Tohru Senoo, Daichi Nishikawa, Mamoru Ishida
  • Electroluminescent device including a plurality of sealing films
    Patent number: 10355242
    Abstract: In an organic EL display device (electroluminescent device) including an organic EL element (electroluminescent element), a first sealing film covers the organic El element, a second sealing film is formed on the first sealing film, and a third sealing film covers the first sealing film and the second sealing film.
    Type: Grant
    Filed: February 27, 2014
    Date of Patent: July 16, 2019
    Inventors: Tetsuya Okamoto, Takeshi Hirase, Tohru Senoo, Tohru Sonoda, Wataru Nakamura
  • Organic EL display device
    Patent number: 10355055
    Abstract: This organic EL display device is provided with: a TFT substrate; a counter substrate; an organic EL element provided on the TFT substrate; a sealing film that seals the organic EL element; a color filter layer provided on the counter substrate on a side closer to the organic EL element; and a filler layer that is filled between the sealing film and the color filter layer. This organic EL display device satisfies nM(h?1)/nMh×LM(h?1)/?(TM(h?1)2+LM(h?1)2)?1, nMh/ng×LMh/?(TMh2+LMh2)?1, ng/nCF×Lg/?(Tg2+Lg2)?1, nCF/nGL×LCF/?(TCF2+LCF2)?1, or nGL/nair×LGL/?(TGL2+LGL2)?1, while satisfying XEC/2+XBM/2??(TMi×tan ?Mi)+Tg×tan ?g+TCF×tan ?CF.
    Type: Grant
    Filed: November 4, 2015
    Date of Patent: July 16, 2019
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Seiji Fujiwara, Takeshi Hirase, Tetsuya Okamoto, Tohru Senoo, Tohru Sonoda
  • EL display device and method for manufacturing EL display device
    Patent number: 10347862
    Abstract: An organic EL display device (1) includes: a plurality of organic EL elements (30) each including a lower electrode (31), an EL layer (32), and an upper portion (33); and a sealing layer (40) covering the plurality of organic EL elements (30), the organic EL display device (1) having, in a non-light-emitting portion (5) of a display region (2), at least one contact hole (34) extending through at least the upper electrode (33) and the EL layer (32) and allowing the sealing layer (40) to be in contact with a surface of a layer below the organic EL layer (32).
    Type: Grant
    Filed: April 5, 2016
    Date of Patent: July 9, 2019
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Tohru Sonoda, Takeshi Hirase, Tetsuya Okamoto, Tohru Senoo, Mamoru Ishida
  • Electroluminescence device
    Patent number: 10340479
    Abstract: In an organic EL (electroluminescence) display device including a base member, and an organic EL element disposed on the base member, the organic EL display device further includes a sealing film to seal the organic EL element. The sealing film includes two inorganic layers, and two organic layers disposed between the two inorganic layers and having infiltration rates different from each other.
    Type: Grant
    Filed: August 22, 2016
    Date of Patent: July 2, 2019
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Mamoru Ishida, Tetsuya Okamoto, Takeshi Hirase, Takashi Ochi, Tohru Senoo, Tohru Sonoda
  • Electroluminescent device and method for producing same
    Patent number: 10333103
    Abstract: In an organic EL display device that includes a TFT substrate (substrate) and an organic EL element (electroluminescent element) provided on the TFT substrate, a sealing film is provided that seals the organic EL element. The sealing film includes one or more layers of inorganic film. The thickness of a peripheral portion of at least one layer of inorganic film among the one or more layers of inorganic film is made thick. Further, a liquid repellent layer is provided covering the sealing film.
    Type: Grant
    Filed: November 4, 2015
    Date of Patent: June 25, 2019
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Takeshi Hirase, Tetsuya Okamoto, Tohru Senoo, Tohru Sonoda, Daichi Nishikawa, Seiji Fujiwara
  • ORGANIC EL DISPLAY DEVICE
    Publication number: 20190189035
    Abstract: A display device includes: a display panel which is flexible, and including a pair of flat portions held in a flat state, and a bending portion provided between the pair of the flat portions and held to be bendable; a first support supporting one of the pair of the flat portions in a flat state; a second support supporting the other of the pair of the flat portions in a flat state; and a joint joining the first support and the second support together. The joint is flexible and provided not to interfere with the bending portion.
    Type: Application
    Filed: July 14, 2017
    Publication date: June 20, 2019
    Inventors: Takashi OCHI, Mamoru ISHIDA, Tohru SONODA, Tohru SENOO, Takeshi HIRASE
  • Electroluminescence device
    Patent number: 10319941
    Abstract: An organic EL display device (electroluminescence device) including a TFT substrate (substrate), an organic EL element (electroluminescence element) disposed on the TFT substrate, a first inorganic film covering the organic EL element, at least one protruding body having a frame shape, the at least one protruding body being configured by an organic film and surrounding the electroluminescence element on the first inorganic film, a second inorganic film covering the first inorganic film and the at least one protruding body, and a leveled film configured by an organic film and provided on the second inorganic film.
    Type: Grant
    Filed: February 9, 2016
    Date of Patent: June 11, 2019
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Takeshi Hirase, Tetsuya Okamoto, Tohru Senoo, Tohru Sonoda, Mamoru Ishida
  • Electroluminescent device and method for producing same
    Patent number: 10305058
    Abstract: An organic EL display device includes a TFT substrate (substrate) and an organic EL element (electroluminescent element) provided on the TFT substrate, a first leveled layer provided covering the organic EL element; an inorganic layer provided on the first leveled layer; and a second leveled layer provided on the inorganic layer. Further, the first and second leveled layers are configured by diisocyanate.
    Type: Grant
    Filed: November 4, 2015
    Date of Patent: May 28, 2019
    Assignee: SHARP KABUSHIKI KAISHA
    Inventor: Takeshi Hirase
  • ORGANIC EL DISPLAY DEVICE
    Publication number: 20190140199
    Abstract: An organic EL display device (1) includes: an organic EL display panel (2) including a flexible plastic substrate and an organic EL element formed on the plastic substrate; and a protective member (3) provided on the organic EL display panel (2), the protective member (3) being bendable. The protective member (3) includes a plurality of protective layers (3a) to (3e) stacked so as to be mutually slidable. The organic EL display panel (2) and the protective layer (3a) being in contact with the organic EL display panel (2) are fixed to each other.
    Type: Application
    Filed: March 17, 2017
    Publication date: May 9, 2019
    Inventors: Tohru SENOO, Takeshi HIRASE, Takashi OCHI, Tohru SONODA, Mamoru ISHIDA
  • Organic EL display device having multilayered sealing film and method for manufacturing same
    Patent number: 10276829
    Abstract: An organic EL display device 1 includes: an organic EL element 4 provided above an element substrate 10; and a sealing film 2 formed above the element substrate 10 so as to cover the organic EL element 4, and made of silicon nitride (SiNx). The sealing film 2 is comprised of a first sealing layer 25, a second sealing layer 26 provided on the surface of the first sealing layer 25, and a third sealing layer 27 provided on the surface of the second sealing layer 26. This organic EL display device 1 is characterized in that a ratio of an SiN-group content to an NH-group content is higher in the first and third sealing layers 25 and 27 than in the second sealing layer 26 based on the absorption area ratio determined by FT-IR measurement.
    Type: Grant
    Filed: March 11, 2016
    Date of Patent: April 30, 2019
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Daichi Nishikawa, Takeshi Hirase, Tetsuya Okamoto, Tohru Senoo, Tohru Sonoda, Mamoru Ishida
  • Electroluminescent device and manufacturing method
    Patent number: 10270061
    Abstract: An organic EL display device including a TFT substrate (substrate) and an organic EL element (electroluminescent element) that is provided on the TFT substrate includes a sealing layer that seals the organic EL element. The sealing layer is composed of a laminated structure that is constituted by an organic film and first and second inorganic films. Recessed/protruding portions are provided on surfaces of the organic film and the first and second inorganic films.
    Type: Grant
    Filed: February 25, 2016
    Date of Patent: April 23, 2019
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Tohru Sonoda, Takeshi Hirase, Tetsuya Okamoto, Tohru Senoo, Daichi Nishikawa, Mamoru Ishida
  • Organic EL display device
    Patent number: 10249694
    Abstract: Disclosed is an organic EL display device which includes: a first resin substrate 10a; a basecoat film 11a provided on the first resin substrate 10a; an organic EL element 18 provided over the basecoat film 11a, a first sealing film 19 covering the organic EL element 18; a second resin substrate 10b facing the first resin substrate 10a, and provided closer to the first sealing film 19 with an adhesive layer 21 interposed between the second resin substrate 10b and the first sealing film 19; and a second sealing film 23a provided outside the first sealing film 19 and enhancing adhesion between the basecoat film 11a and a stack including the first sealing film 19 and the adhesive layer 21.
    Type: Grant
    Filed: April 8, 2016
    Date of Patent: April 2, 2019
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Tetsuya Okamoto, Takeshi Hirase, Tohru Senoo, Tohru Sonoda, Mamoru Ishida
  • ORGANIC EL DISPLAY DEVICE
    Publication number: 20190088895
    Abstract: An organic EL display device includes an organic EL display panel having a plastic substrate exhibiting flexibility and organic EL elements formed on the plastic substrate, a first inorganic layer provided on an upper surface of the organic EL display panel, and a second inorganic layer provided on a lower surface of the organic EL display panel. The entire thickness T of the organic EL display device is equal to or less than 74 ?m.
    Type: Application
    Filed: March 22, 2017
    Publication date: March 21, 2019
    Inventors: Mamoru ISHIDA, Yoshifumi OHTA, Takeshi HIRASE, Takashi OCHI, Tohru SENOO, Tohru SONODA
  • ORGANIC EL DISPLAY DEVICE
    Publication number: 20190081110
    Abstract: Provided is an organic EL display device including an organic EL display panel exhibiting flexibility, a functional layer portion provided to face the organic EL display panel on one surface side thereof and exhibiting flexibility, and a support layer portion provided to face the organic EL display panel on the other surface side thereof and exhibiting flexibility. The functional layer portion is slidably provided on one surface of the organic EL display panel, and the support layer portion is slidably provided on the other surface of the organic EL display panel.
    Type: Application
    Filed: March 8, 2017
    Publication date: March 14, 2019
    Inventors: Tohru SONODA, Takeshi HIRASE, Tohru SENOO, Takashi OCHI, Mamoru ISHIDA
  • ORGANIC EL DISPLAY DEVICE
    Publication number: 20190067636
    Abstract: An organic EL display device includes: a resin substrate; an organic EL element provided on the resin substrate; a foundation layer covering the organic EL element; and a hard coat layer provided on the foundation layer. The difference between the Martens hardness obtained if the hard coat layer is formed on the glass substrate and the Martens hardness obtained if the hard coat layer is formed on the glass substrate via the resin film is less than 34 N/mm2.
    Type: Application
    Filed: March 8, 2017
    Publication date: February 28, 2019
    Inventors: Tohru SENOO, Takeshi HIRASE, Takashi OCHI, Tohru SONODA, Mamoru ISHIDA
  • Organic EL display device and method of manufacturing organic EL display device
    Patent number: 10217957
    Abstract: An organic EL display device includes: a first support member having flexibility; an organic EL layer layered in a matrix form on the first support member; and a second support member disposed opposite the first support member with the organic EL layer interposed between the first support member and the second support member. Grooves on the first support member and grooves on the second support member overlap with one another. As a result, flexibility of the organic EL display device can be enhanced.
    Type: Grant
    Filed: October 13, 2016
    Date of Patent: February 26, 2019
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Tohru Sonoda, Takashi Ochi, Hisao Ochi, Tohru Senoo, Takeshi Hirase, Akihiro Matsui, Jumpei Takahashi
  • METHOD FOR PRODUCING ORGANIC EL DISPLAY DEVICE, AND ORGANIC EL DISPLAY DEVICE
    Publication number: 20190036077
    Abstract: The present invention relates to a method including: an organic EL element formation step of forming an organic EL element (18) on an base substrate (10); and a sealing film formation step of forming a sealing film (20a) covering the organic EL element (18). The sealing film formation step includes an atomic layer deposition step of forming an inorganic barrier film (21) as the sealing film (20a) by atomic layer deposition and a molecular layer deposition step of forming an inorganic-organic composite barrier film (22) as the sealing film (20a) by molecular layer deposition.
    Type: Application
    Filed: February 13, 2017
    Publication date: January 31, 2019
    Inventors: Takeshi HIRASE, Tetsuya OKAMOTO, Tohru SENOO, Tohru SONODA, Takashi OCHI, Mamoru ISHIDA
  • ORGANIC EL DISPLAY DEVICE AND METHOD OF MANUFACTURING ORGANIC EL DISPLAY DEVICE
    Publication number: 20190013493
    Abstract: An organic EL display device includes: a first support member having flexibility; an organic EL layer layered in a matrix form on the first support member; and a second support member disposed opposite the first support member with the organic EL layer interposed between the first support member and the second support member. Grooves on the first support member and grooves on the second support member overlap with one another. As a result, flexibility of the organic EL display device can be enhanced.
    Type: Application
    Filed: October 13, 2016
    Publication date: January 10, 2019
    Inventors: Tohru SONODA, Takashi OCHI, Hisao OCHI, Tohru SENOO, Takeshi HIRASE, Akihiro MATSUI, Jumpei TAKAHASHI