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 SAME
    Publication number: 20190006618
    Abstract: An organic EL display device includes a base substrate, an organic EL element (provided on the base substrate and including a plurality of organic EL layers arranged in a matrix form, a sealing film provided on the organic EL element, and a plurality of sub pixels defined corresponding to the plurality of organic EL layers. The sealing film is provided with a groove formed to run between adjacent ones of the plurality of sub pixels.
    Type: Application
    Filed: September 28, 2016
    Publication date: January 3, 2019
    Applicant: Sharp Kabushiki Kaisha
    Inventors: Tohru SONODA, Takashi OCHI, Hisao OCHI, Tohru SENOO, Takeshi HIRASE, Akihiro MATSUI, Jumpei TAKAHASHI
  • ELECTROLUMINESCENT DEVICE
    Publication number: 20180375056
    Abstract: An organic EL display device includes a flexible base and an organic EL element (electroluminescent element) provided on the base, and further includes an adjustment layer that has heat dissipating properties and that adjusts a neutral surface of the organic EL display device. The adjustment layer is provided on the organic EL element side relative to the center of the whole organic EL display device in the film thickness direction.
    Type: Application
    Filed: July 4, 2016
    Publication date: December 27, 2018
    Inventors: Tohru SONODA, Takeshi HIRASE, Tetsuya OKAMOTO, Tohru SENOO, Mamoru ISHIDA, Takashi OCHI
  • EL display device and method for manufacturing EL display device
    Patent number: 10159120
    Abstract: An EL display device in which the adhesion between a substrate and a sealing film is increased and in which the occurrence of cracks in the sealing film is reduced is provided. A lower inorganic film (31) has a multilayer structure including a first inorganic layer (34), which is in contact with the substrate and an EL element, and a second inorganic layer (35). The absolute value of the film stress of the first inorganic layer (34) is less than the absolute value of the film stress of the second inorganic layer (35), and the film thickness of the first inorganic layer (34) is less than the film thickness of the second inorganic layer (35).
    Type: Grant
    Filed: June 7, 2016
    Date of Patent: December 18, 2018
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Mamoru Ishida, Tetsuya Okamoto, Takeshi Hirase, Tohru Senoo, Tohru Sonoda
  • ORGANIC EL DISPLAY DEVICE
    Publication number: 20180337354
    Abstract: Disclosed herein is an organic EL display device including: a base resin substrate layer (10); an organic EL element layer (20) provided on the base resin substrate layer (10); an underlayer (29) provided on the organic EL element layer (20); and a hard coat layer (30) provided on the underlayer (29). A difference between a Martens hardness of the hard coat layer (30) alone and a weighted average Martens hardness of components of a stack layer by stress dispersion coefficients of the components is less than or equal to 79 N/mm2. The stack layer includes the base resin substrate layer, the organic EL element layer, and the underlayer.
    Type: Application
    Filed: February 1, 2017
    Publication date: November 22, 2018
    Inventors: Tohru SONODA, Takeshi HIRASE, Tohru SENOO, Takashi OCHI, Mamoru ISHIDA
  • ORGANIC EL DISPLAY DEVICE
    Publication number: 20180337368
    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: Application
    Filed: July 31, 2018
    Publication date: November 22, 2018
    Inventors: TOHRU SONODA, TAKESHI HIRASE, TETSUYA OKAMOTO, TOHRU SENOO, DAICHI NISHIKAWA, MAMORU ISHIDA
  • ELECTROLUMINESCENT DEVICE AND METHOD FOR PRODUCING SAME
    Publication number: 20180301654
    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: Application
    Filed: November 4, 2015
    Publication date: October 18, 2018
    Inventor: TAKESHI HIRASE
  • ORGANIC EL DISPLAY DEVICE AND METHOD FOR PRODUCING ORGANIC EL DISPLAY DEVICE
    Publication number: 20180287091
    Abstract: Provided is an organic EL display device 1 that includes: a substrate 11; a first electrode 13 provided on the substrate 11; an organic EL layer 15 provided on the first electrode 13; a second electrode 16 provided on the organic EL layer 15; and a sealing film layer 17 provided so as to cover the second electrode 16. The sealing film layer 17 has protruding portions and recessed portions.
    Type: Application
    Filed: November 4, 2015
    Publication date: October 4, 2018
    Inventors: SEIJI FUJIWARA, TAKESHI HIRASE, TETSUYA OKAMOTO, TOHRU SENOO, TOHRU SONODA, DAICHI NISHIKAWA, MAMORU ISHIDA
  • ORGANIC EL DISPLAY DEVICE
    Publication number: 20180277609
    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: Application
    Filed: November 4, 2015
    Publication date: September 27, 2018
    Inventors: Seiji Fukiwara, Takeshi Hirase, Tetsuya Okamoto, Tohru Senoo, Tohru Sonoda
  • FLEXIBLE DEVICE
    Publication number: 20180279489
    Abstract: The present invention provides a flexible device which is free of twist and distortion at a bent part of a flexible module, and has excellent display quality and a high level of reliability. The flexible device (1) includes a first housing (31), a second housing (41), a third housing (61), and a plurality of turning bodies (80) each of which is fixed to the first housing (31) or the second housing (41) and rolls on the third housing (61) so that a turning axis (80a) of the each of the plurality of turning bodies (80) horizontally moves.
    Type: Application
    Filed: September 20, 2016
    Publication date: September 27, 2018
    Inventors: Takashi OCHI, Takeshi HIRASE, Tetsuya OKAMOTO, Tohru SENOO, Tohru SONODA, Mamoru ISHIDA
  • ELECTROLUMINESCENCE DEVICE
    Publication number: 20180269426
    Abstract: An organic EL display device including: a base material being flexible; an organic EL element (electroluminescence element) provided on the base material; a first moisture-proof film and a TFT layer provided in sequence on the base material between the base material and the organic EL element; and a first sealing film configured to seal the organic EL element. In the organic EL display device, a stress adjustment layer configured to adjust a neutral face of the organic EL display device is provided, and the neutral face is positioned between a lower face of the first moisture-proof film and an upper face of the first sealing film.
    Type: Application
    Filed: September 26, 2016
    Publication date: September 20, 2018
    Inventors: Tetsuya OKAMOTO, Takeshi HIRASE, Takashi OCHI, Tohru SENOO, Tohru SONODA, Mamoru ISHIDA
  • ELECTROLUMINESCENCE DEVICE AND METHOD FOR PRODUCING SAME
    Publication number: 20180261787
    Abstract: In an organic EL display device that includes a base material having flexibility and an organic EL element (electroluminescence element) provided on the base material, a sealing film is formed that seals the organic EL element. Additionally, a first adjustment layer and a second adjustment layer, which are configured of materials having the same thickness and the same Young's modulus and are configured to adjust a neutral surface of the organic EL display device, are each provided at an end portion on one side and an end portion on another side of the organic EL display device in a film thickness direction T.
    Type: Application
    Filed: September 26, 2016
    Publication date: September 13, 2018
    Inventors: Mamoru ISHIDA, Tetsuya OKAMOTO, Takeshi HIRASE, Takashi OCHI, Tohru SENOO, Tohru SONODA
  • Organic EL display device
    Patent number: 10069110
    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 multilayer 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: November 30, 2015
    Date of Patent: September 4, 2018
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Tohru Sonoda, Takeshi Hirase, Tetsuya Okamoto, Tohru Senoo, Daichi Nishikawa, Mamoru Ishida
  • ORGANIC EL DISPLAY DEVICE
    Publication number: 20180241000
    Abstract: An organic EL display device 1 includes: a flexible plastic substrate 10; a first sealing film 3 on the plastic substrate 10; an organic EL element layer 5 above the first sealing film 3; and a second sealing film 6 provided on the organic EL element layer 5, being in contact with the first sealing film 3, and covering, together with the first sealing film 3, the organic EL element layer 5. A sealer 2 is provided to cover an interface 25 between the first and second sealing films 3 and 6.
    Type: Application
    Filed: September 1, 2016
    Publication date: August 23, 2018
    Inventors: Tetsuya OKAMOTO, Takeshi HIRASE, Takashi OCHI, Tohru SENOO, Tohru SONODA, Mamoru ISHIDA
  • Organic EL display device
    Patent number: 10056574
    Abstract: An organic EL display 1 includes a sealing film 2 provided on a plastic substrate 10 to cover an organic EL element 4. The sealing film 2 includes a first sealing layer 25 on a surface of the plastic substrate 10, three stress relief layers 26, 27, and 28 on a surface of the first sealing layer 25, and a second sealing layer 29 on a surface of the stress relief layer 28. The stress relief layers 26, 27, and 28 each have a higher coefficient of thermal expansion than the first and second sealing layers 25 and 29. The stress relief layer 27 interposed between the stress relief layers 26 and 28 has a higher coefficient of thermal expansion than the stress relief layers 26 and 28.
    Type: Grant
    Filed: February 12, 2016
    Date of Patent: August 21, 2018
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Mamoru Ishida, Tetsuya Okamoto, Takeshi Hirase, Tohru Senoo, Tohru Sonoda, Daichi Nishikawa
  • Electroluminescence device, electronic device, and method for manufacturing electroluminescence device
    Patent number: 10043999
    Abstract: In an organic EL display device (electroluminescence device) including a flexible TFT substrate (substrate), an organic EL element (electroluminescence element) provided on the TFT substrate, and a sealing film that seals the organic EL element, a foldable bend portion is provided. The film thickness of the sealing film is reduced at the bend portion.
    Type: Grant
    Filed: September 17, 2015
    Date of Patent: August 7, 2018
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Tohru Senoo, Takeshi Hirase, Tetsuya Okamoto, Tohru Sonoda, Mamoru Ishida, Seiji Fujiwara, Daichi Nishikawa
  • ORGANIC EL DISPLAY DEVICE
    Publication number: 20180219172
    Abstract: Disclosed is an organic EL display device including: a base substrate (10); an organic EL element (18) provided over the base substrate (10); and a sealing film (25a) covering the organic EL element (18). The sealing film (25a) includes a plurality of buffer layers (19a, 21a, 23a) each comprised of an inorganic film, and a buffer layer (20a, 22a) comprised of an organic film and provided between adjacent two of the plurality of buffer layers (19a, 21a, 23a). The buffer layer (20a, 22a) includes, in its peripheral edge portion surrounding the organic EL element, a flat thin portion (20t, 22t) which is thinner than the rest of the buffer layer (20a, 22a) above the organic EL element (18).
    Type: Application
    Filed: August 18, 2016
    Publication date: August 2, 2018
    Inventors: Tohru SENOO, Takeshi HIRASE, Tetsuya OKAMOTO, Takashi OCHI, Tohru SONODA, Mamoru ISHIDA
  • ELECTROLUMINESCENT DEVICE
    Publication number: 20180212193
    Abstract: An organic EL display device includes a substrate and an organic EL element (electroluminescent element) provided on the substrate. The organic El display device includes a sealing layer that seals the organic EL element. The sealing layer includes silicon oxide films. Moreover, the degree of oxidation of the silicon oxide films is set to 1.2 or more and 1.8 or less.
    Type: Application
    Filed: July 15, 2016
    Publication date: July 26, 2018
    Inventors: Takeshi HIRASE, Tetsuya OKAMOTO, Tohru SENOO, Tohru SONODA, Takashi OCHI, Mamoru ISHIDA
  • Electroluminescent device and manufacturing method
    Patent number: 10014489
    Abstract: An organic EL display device 1 that includes a TFT substrate (substrate) 2 and an organic EL element (electroluminescent element) 4 provided on the TFT substrate 2 includes a sealing film 14 that seals the organic EL element 4. The sealing film 14 has a layered structure composed of an organic layer 14b and inorganic layers 14a, 14c. At least a peripheral portion 14b2 of the organic layer 14b has a lower carbon content than a central portion 14b1 of the organic layer 14b.
    Type: Grant
    Filed: October 8, 2015
    Date of Patent: July 3, 2018
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Tohru Sonoda, Takeshi Hirase, Tetsuya Okamoto, Tohru Senoo, Seiji Fujiwara, Daichi Nishikawa, Mamoru Ishida
  • ELECTROLUMINESCENCE DEVICE
    Publication number: 20180183006
    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: Application
    Filed: August 22, 2016
    Publication date: June 28, 2018
    Inventors: Mamoru ISHIDA, Tetsuya OKAMOTO, Takeshi HIRASE, Takashi OCHI, Tohru SENOO, Tohru SONODA
  • Organic EL device
    Patent number: 9997736
    Abstract: An organic EL device includes a TFT substrate 1, a first electrode 5 provided on the TFT substrate 1, an organic EL layer 6 provided on the first electrode 5, a second electrode 7 provided on the organic EL layer 6, and a sealing film 10 covering the second electrode 7. The TFT substrate 1 is provided thereon with upward projections 11 and 12. The upward projections 11 and 12 are covered with the sealing film 10.
    Type: Grant
    Filed: December 9, 2015
    Date of Patent: June 12, 2018
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Tetsuya Okamoto, Takeshi Hirase, Tohru Senoo, Tohru Sonoda, Seiji Fujiwara, Daichi Nishikawa