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).

  • Patent number: 9692011
    Abstract: In an organic EL display device (electroluminescence device) including an organic EL element (electroluminescence element), the organic EL element is covered with a desiccant layer. Between a TFT substrate (substrate) and an opposite substrate, a frame-shaped moisture high-permeable layer and a frame-shaped sealing member are disposed in a state successively surrounding the desiccant layer.
    Type: Grant
    Filed: February 25, 2014
    Date of Patent: June 27, 2017
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Tohru Senoo, Tohru Sonoda, Takeshi Hirase, Tetsuya Okamoto
  • Patent number: 9653702
    Abstract: In an organic EL display device (electroluminescent device) including an organic EL element (electroluminescent element), a sealing film is provided to seal the organic EL element, and a projection (preventing portion) is configured to prevent the sealing film from peeling off and to have an inclined plane forming an obtuse angle with a light emitting surface of the organic EL element. The projection is provided only in a non-light emitting region of the organic EL element.
    Type: Grant
    Filed: February 3, 2015
    Date of Patent: May 16, 2017
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Tohru Sonoda, Takeshi Hirase, Tetsuya Okamoto, Tohru Senoo, Seiji Fujiwara
  • Patent number: 9653703
    Abstract: In an organic EL display device (electroluminescent device) equipped with an organic EL element (electroluminescent element), the organic EL element is encapsulated by a TFT substrate (substrate), a counter substrate, and a sealing resin. A desiccant layer and a highly-moisture-permeable layer are laminated in this order on the organic EL element. The highly-moisture-permeable layer is in direct contact with the sealing resin.
    Type: Grant
    Filed: January 31, 2014
    Date of Patent: May 16, 2017
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Tohru Sonoda, Takeshi Hirase, Tetsuya Okamoto, Tohru Senoo
  • Publication number: 20170133626
    Abstract: The present invention includes a frame-shaped sealing material, a filling layer, and a support. The frame-shaped sealing material is provided between a TFT substrate and a counter substrate, and is configured to seal an organic EL element (electroluminescent element) along with the TFT substrate and the counter substrate. The filling layer is composed of a liquid filler, and is filled in the space between the counter substrate, a sealing film, and the sealing material. The support is located inside the sealing material and between the TFT substrate and the counter substrate, and also supports the TFT substrate and the counter substrate.
    Type: Application
    Filed: June 30, 2015
    Publication date: May 11, 2017
    Applicant: Sharp Kabushiki Kaisha
    Inventors: Tohru SENOO, Tetsuya OKAMOTO, Tohru SONODA, Seiji FUJIWARA, Takeshi HIRASE
  • Publication number: 20170084866
    Abstract: Provided is a TFT substrate (substrate); a second electrode (vapor-deposited membrane) that is formed on the TFT substrate and includes a protruding portion; and a sealing membrane provided so as to cover the second electrode, wherein, when a represents an absolute value of a stress of the sealing membrane, t represents a thickness of the sealing membrane, and P represents a sum of a product of an oblique side length and an oblique side slope in a minute region on an oblique side of the protruding portion, a value of an index N expressed by the expression (N=?·t·P) is less than or equal to 935 MPa·?m2.
    Type: Application
    Filed: May 7, 2015
    Publication date: March 23, 2017
    Inventors: Tohru SONODA, Takeshi HIRASE, Tetsuya OKAMOTO, Tohru SENOO, Seiji FUJIWARA
  • Publication number: 20170040399
    Abstract: Provided is an organic EL display device (electroluminescence device) including a TFT substrate (substrate) and an organic EL element (electroluminescence element) provided on the TFT substrate, wherein the organic EL display device includes a sealing layer that seals the organic EL element. The sealing layer is provided with a first, a second, and a third sealing film that are sequentially stacked from the organic EL element side, the first and third sealing films and are each formed of an inorganic film, and the second sealing film is formed of an octamethylcyclotetrasiloxane film.
    Type: Application
    Filed: April 30, 2015
    Publication date: February 9, 2017
    Applicant: Sharp Kabushiki Kaisha
    Inventors: Takeshi HIRASE, Tetsuya OKAMOTO, Tohru SENOO, Tohru SONODA, Seiji FUJIWARA
  • Patent number: 9530984
    Abstract: A barrier film configured to reduce degradation of an organic EL element includes a first inorganic film, a second inorganic film, and a third inorganic film which are provided in order from a base substrate, a first organic film between the first inorganic film and the second inorganic film, and a second organic film between the second inorganic film and the third inorganic film. The first organic film has a plurality of first through holes formed therein so that the first inorganic film is in contact with the second inorganic film through the first through holes. The second organic film has a plurality of second through holes formed therein so that the second inorganic film is in contact with the third inorganic film through the second through holes.
    Type: Grant
    Filed: August 28, 2013
    Date of Patent: December 27, 2016
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Tohru Sonoda, Takeshi Hirase, Tetsuya Okamoto, Tohru Senoo, Yuki Yasuda
  • Publication number: 20160343981
    Abstract: In an organic EL display device (electroluminescent device) including an organic EL element (electroluminescent element), a sealing film is provided to seal the organic EL element, and a projection (preventing portion) is configured to prevent the sealing film from peeling off and to have an inclined plane forming an obtuse angle with a light emitting surface of the organic EL element. The projection is provided only in a non-light emitting region of the organic EL element.
    Type: Application
    Filed: February 3, 2015
    Publication date: November 24, 2016
    Inventors: Tohru SONODA, Takeshi HIRASE, Tetsuya OKAMOTO, Tohru SENOO, Seiji FUJIWARA
  • Publication number: 20160240809
    Abstract: An organic EL display device (electroluminescent device) equipped with an organic EL element (electroluminescent element) includes an opposing substrate that is provided on an organic EL element side and that opposes a TFT substrate (substrate), a desiccant that is provided between the TFT substrate and the opposing substrate in such a manner as to cover the organic EL element, a frame-shaped seal material that seals the organic EL element between the TFT substrate and the opposing substrate, and a holding member for holding the desiccant, the holding member being provided on the opposing substrate side inside the seal material.
    Type: Application
    Filed: July 31, 2014
    Publication date: August 18, 2016
    Applicant: Sharp Kabushiki Kaisha
    Inventors: Tohru SENOO, Takeshi HIRASE, Tetsuya OKAMOTO, Tohru SONODA
  • Publication number: 20160204374
    Abstract: In an organic EL display device (electroluminescent device) including an organic EL element (electroluminescent element), a sealing film is provided to seal the organic EL element. The sealing film includes a first inorganic layer, a first organic layer, a second inorganic layer, a second organic layer, and a third inorganic layer (uppermost inorganic layer), which are arranged in this order. The first and second organic layers are formed so that the thickness of the end portions gradually decreases from the thickness of the central portions. The third inorganic layer is provided to cover the end portions of each of the first inorganic layer, the first organic layer, the second inorganic layer, and the second organic layer.
    Type: Application
    Filed: July 9, 2014
    Publication date: July 14, 2016
    Inventors: Tohru SONODA, Takeshi HIRASE, Tetsuya OKAMOTO, Tohru SENOO
  • Publication number: 20160087243
    Abstract: In an organic EL display device (electroluminescence device) including an organic EL element (electroluminescence element), the organic EL element is covered with a desiccant layer. Between a TFT substrate (substrate) and an opposite substrate, a frame-shaped moisture high-permeable layer and a frame-shaped sealing member are disposed in a state successively surrounding the desiccant layer.
    Type: Application
    Filed: February 25, 2014
    Publication date: March 24, 2016
    Inventors: Tohru SENOO, Tohru SONODA, Takeshi HIRASE, Tetsuya OKAMOTO
  • Publication number: 20160072099
    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: Application
    Filed: February 27, 2014
    Publication date: March 10, 2016
    Inventors: Tetsuya OKAMOTO, Takeshi HIRASE, Tohru SENOO, Tohru SONODA, Wataru NAKAMURA
  • Publication number: 20150357600
    Abstract: In an organic EL display device (electroluminescent device) equipped with an organic EL element (electroluminescent element), the organic EL element is encapsulated by a TFT substrate (substrate), a counter substrate, and a sealing resin. A desiccant layer and a highly-moisture-permeable layer are laminated in this order on the organic EL element. The highly-moisture-permeable layer is in direct contact with the sealing resin.
    Type: Application
    Filed: January 31, 2014
    Publication date: December 10, 2015
    Inventors: Tohru SONODA, Takeshi HIRASE, Tetsuya OKAMOTO, Tohru SENOO
  • Publication number: 20150214504
    Abstract: A barrier film configured to reduce degradation of an organic EL element includes a first inorganic film, a second inorganic film, and a third inorganic film which are provided in order from a base substrate, a first organic film between the first inorganic film and the second inorganic film, and a second organic film between the second inorganic film and the third inorganic film. The first organic film has a plurality of first through holes formed therein so that the first inorganic film is in contact with the second inorganic film through the first through holes. The second organic film has a plurality of second through holes formed therein so that the second inorganic film is in contact with the third inorganic film through the second through holes.
    Type: Application
    Filed: August 28, 2013
    Publication date: July 30, 2015
    Inventors: Tohru Sonoda, Takeshi Hirase, Tetsuya Okamoto, Tohru Senoo, Yuki Yasuda
  • Patent number: 8994012
    Abstract: An organic EL panel (1) in accordance with one embodiment of the present invention includes: an element substrate (10); a sealing substrate (14); and an organic EL element (15) which is (i) sandwiched between the element substrate (10) and the sealing substrate (14) and (ii) constituted by at least an anode, an organic light emitting layer and a cathode which are stacked together. The sealing substrate (14) has, on its surface facing the element substrate (10), a PVA sealing film (13) and an SiO2 sealing film (12) stacked together.
    Type: Grant
    Filed: October 14, 2011
    Date of Patent: March 31, 2015
    Assignee: Sharp Kabushiki Kaisha
    Inventor: Takeshi Hirase
  • Patent number: 8710492
    Abstract: An organic EL display device (1) includes an element substrate (30), a sealing substrate (20) facing the element substrate (30), an organic EL element (4) provided on the element substrate (30) and between the element substrate (30) and the sealing substrate (20), a first sealing member (5) made of fritted glass and provided between the element substrate (30) and the sealing substrate (20), and configured to weld the element substrate (30) and the sealing substrate (20) to seal the organic EL element (4), a resin member (14) provided between the sealing substrate (20) and the organic EL element (4) and configured to cover a surface of the organic EL element (4), and a second sealing member (16) formed of a resin and provided between the element substrate (30) and the sealing substrate (20).
    Type: Grant
    Filed: March 3, 2010
    Date of Patent: April 29, 2014
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Manabu Niboshi, Takeshi Hirase, Yuhki Kobayashi
  • Publication number: 20130214266
    Abstract: An organic EL panel (1) in accordance with one embodiment of the present invention includes: an element substrate (10); a sealing substrate (14); and an organic EL element (15) which is (i) sandwiched between the element substrate (10) and the sealing substrate (14) and (ii) constituted by at least an anode, an organic light emitting layer and a cathode which are stacked together. The sealing substrate (14) has, on its surface facing the element substrate (10), a PVA sealing film (13) and an SiO2 sealing film (12) stacked together.
    Type: Application
    Filed: October 14, 2011
    Publication date: August 22, 2013
    Applicant: SHARP KABUSHIKI KAISHA
    Inventor: Takeshi Hirase
  • Patent number: 8410476
    Abstract: The present invention provides an organic electroluminescent display device including an electroluminescent element with a reduced leakage current and also provides a production method thereof. The present invention is an organic electroluminescent display device including an electroluminescent element, the electroluminescent element comprising a lower electrode, an organic layer, a light-emitting layer, and an upper electrode, stacked one above the other on and above a substrate in this order, wherein the organic electroluminescent display device further includes a bank formed on the organic layer.
    Type: Grant
    Filed: August 1, 2008
    Date of Patent: April 2, 2013
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Emi Yamamoto, Kazuya Ishida, Hideki Uchida, Takeshi Hirase, Tohru Sonoda, Yuhki Kobayashi
  • Patent number: 8207667
    Abstract: An organic EL display includes a substrate on which pixel areas are arranged in a matrix; first and second electrodes; functional material layers each including a carrier transport layer and a non-carrier transport layer; and a barrier to define the pixel areas. The barrier includes communication recesses arranged to extend the non-carrier transport layers from respective first pixel areas to respective second pixel areas adjacent to each other in the pixel areas defined by the barrier.
    Type: Grant
    Filed: April 23, 2008
    Date of Patent: June 26, 2012
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Tooru Sonoda, Yuhki Kobayashi, Takeshi Hirase
  • Publication number: 20120080671
    Abstract: An organic EL display device (1) includes an element substrate (30), a sealing substrate (20) facing the element substrate (30), an organic EL element (4) provided on the element substrate (30) and between the element substrate (30) and the sealing substrate (20), a first sealing member (5) made of fritted glass and provided between the element substrate (30) and the sealing substrate (20), and configured to weld the element substrate (30) and the sealing substrate (20) to seal the organic EL element (4), a resin member (14) provided between the sealing substrate (20) and the organic EL element (4) and configured to cover a surface of the organic EL element (4), and a second sealing member (16) formed of a resin and provided between the element substrate (30) and the sealing substrate (20).
    Type: Application
    Filed: March 3, 2010
    Publication date: April 5, 2012
    Applicant: SHARP KABUSHIKI KAISHA
    Inventors: Manabu Niboshi, Takeshi Hirase, Yuhki Kobayashi