Patents by Inventor Daisuke Sonoda

Daisuke Sonoda 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: 10928945
    Abstract: A sensor-equipped display device is provided including a display panel including a substrate, a sensor drive electrode, and a detection electrode opposed to the sensor drive electrode, wherein the detection electrode includes first and second layers in a first direction, the first layer has a first width in a second direction intersecting the first direction, the second layer has a second width in the second direction, the second width being wider than the first width, the first layer includes first lower and upper surfaces, the first upper surface being between the first lower surface and the second layer, the second layer includes a second lower surface located on the first upper surface, and a second upper surface opposed to the second lower surface, the second lower surface being between the second upper surface and the first layer, the second lower surface has a first region which is in contact with the first upper surface and a second region which is not in contact with the first upper surface, and the
    Type: Grant
    Filed: February 11, 2020
    Date of Patent: February 23, 2021
    Assignee: Japan Display Inc.
    Inventors: Koji Ishizaki, Daisuke Sonoda, Tatsuya Ide, Hiroyuki Ito
  • Publication number: 20200401255
    Abstract: A detection device is provided including first substrate including first region, second region and third region arranged in first direction, second region arranged between first and third regions; first detection electrode arranged on first substrate; second detection electrode arranged on first substrate and being adjacent to first detection electrode; first electrode coupled to first detection electrode and continuously formed from first to third regions; second electrode coupled to second detection electrode, and continuously formed from first to third regions, convex portions located between first electrode and second electrode in second region and spaced away from first and second electrodes; and protective layer formed on first and second electrodes in first region and not formed on first electrode and second electrode in third region, wherein at least one of convex portions is covered with protective layer, and at least another one of convex portions is not covered with protective layer.
    Type: Application
    Filed: September 2, 2020
    Publication date: December 24, 2020
    Inventors: Koji ISHIZAKI, Daisuke SONODA, Toshimasa ISHIGAKI
  • Patent number: 10768761
    Abstract: A detection device includes a first substrate including a first region, a second region and a third region, the second region arranged between the first region and the third region; a detection electrode arranged on the first substrate; a first electrode coupled to the detection electrode, continuously formed from the first region to the third region in a first direction on the first substrate, and including a plurality of concave portions in the second region; and a protective layer formed on the first electrode in the first region, wherein the protective layer is formed on a first one of the concave portions in the second region, wherein the protective film is not formed on a second one of the concave portions in the second region, the second one of the concave portions is arranged nearer to the third region than the first one of the concave portions.
    Type: Grant
    Filed: April 25, 2019
    Date of Patent: September 8, 2020
    Assignee: Japan Display Inc.
    Inventors: Koji Ishizaki, Daisuke Sonoda, Toshimasa Ishigaki
  • Patent number: 10754206
    Abstract: According to one embodiment, a display device includes an insulating substrate including a first surface, and a second surface opposite to the first surface, a circuit board mounted on the first surface, a supporting member adhered to the insulating substrate on the second surface, and an antistatic layer located between the insulating substrate and the supporting member.
    Type: Grant
    Filed: February 14, 2019
    Date of Patent: August 25, 2020
    Assignee: Japan Display Inc.
    Inventors: Tatsuya Ide, Daisuke Sonoda, Yasushi Tomioka
  • Patent number: 10698512
    Abstract: An electrode substrate includes a sensing electrode formed on a glass substrate, a concave/convex pattern formed on the glass substrate, and a protective film formed so as to cover the sensing electrode. The concave/convex pattern is disposed closer to an outer periphery of the glass substrate than the sensing electrode is when seen in a plan view. The protective film is formed so as to cover a part of the glass substrate positioned between the sensing electrode and the concave/convex pattern when seen in a plan view.
    Type: Grant
    Filed: March 3, 2015
    Date of Patent: June 30, 2020
    Assignee: Japan Display Inc.
    Inventors: Koji Ishizaki, Toshimasa Ishigaki, Daisuke Sonoda
  • Publication number: 20200174610
    Abstract: A sensor-equipped display device is provided including a display panel including a substrate, a sensor drive electrode, and a detection electrode opposed to the sensor drive electrode, wherein the detection electrode includes first and second layers in a first direction, the first layer has a first width in a second direction intersecting the first direction, the second layer has a second width in the second direction, the second width being wider than the first width, the first layer includes first lower and upper surfaces, the first upper surface being between the first lower surface and the second layer, the second layer includes a second lower surface located on the first upper surface, and a second upper surface opposed to the second lower surface, the second lower surface being between the second upper surface and the first layer, the second lower surface has a first region which is in contact with the first upper surface and a second region which is not in contact with the first upper surface, and the
    Type: Application
    Filed: February 11, 2020
    Publication date: June 4, 2020
    Inventors: Koji ISHIZAKI, Daisuke SONODA, Tatsuya IDE, Hiroyuki ITO
  • Patent number: 10585507
    Abstract: According to one embodiment, a sensor-equipped display device includes a display panel including a sensor drive electrode and a detection electrode opposed to the sensor drive electrode and a driver, wherein the detection electrode includes a first layer formed in a thin line shape, and a second layer on the first layer in a plan view of the display area, the second layer having a reflectivity lower than that of the first layer, the outer edge of a second lower surface of the second layer is shifted with respect to the outer edge of a first upper surface of the first layer in a plan view, and the outermost outer edge of the second layer is positioned outside the outermost outer edge of the first layer in a plan view.
    Type: Grant
    Filed: November 29, 2016
    Date of Patent: March 10, 2020
    Assignee: Japan Display Inc.
    Inventors: Koji Ishizaki, Daisuke Sonoda, Tatsuya Ide, Hiroyuki Ito
  • Patent number: 10528205
    Abstract: To reduce disturbances in display of images due to static electricity without deteriorating optical properties in a display. The display includes a conductive pattern provided on the upper surface of the substrate, a protection layer provided on the upper surface of the substrate to cover the conductive pattern, and a conductive layer provided on the protection layer. The sheet resistance of the conductive pattern is not more than 8 ?/square. A ratio of the total sum of areas of portions of the plurality of sub-pixels that overlap the conductive pattern in a plan view to the total sum of the areas of the plurality of sub-pixels is 1 to 22%. A sheet resistance of the conductive layer is higher than the sheet resistance of the conductive pattern.
    Type: Grant
    Filed: January 4, 2019
    Date of Patent: January 7, 2020
    Assignee: Japan Display Inc.
    Inventors: Masanobu Ikeda, Koji Ishizaki, Hayato Kurasawa, Yoshihiro Watanabe, Toshimasa Ishigaki, Daisuke Sonoda, Tatsuya Ide
  • Patent number: 10469013
    Abstract: A motor control device at least includes a speed control part for controlling a motor rotation speed. The motor control device includes a torque correction means for suppressing variation in torque constant due to individual differences of motors. In addition, the motor control device corrects the torque constant by using a correction torque coefficient calculated based on an unloaded speed when a fixed voltage is applied. Alternatively, the torque constant is corrected using the correction torque coefficient calculated based on the motor applied voltage when the motor speed is fixed.
    Type: Grant
    Filed: February 27, 2019
    Date of Patent: November 5, 2019
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Mitsuhiro Sakamoto, Yasuyuki Yokouchi, Daisuke Sonoda, Ryuta Sasaki
  • Patent number: 10409124
    Abstract: According to one embodiment, a liquid crystal display device, includes a first substrate including a scanning signal line, a video signal line, a first electrode, a color filter, a common line in contact with the first electrode along the video signal line, an antireflection layer located on the common line, a transparent layer located on the antireflection layer, and a second electrode, a liquid crystal layer located on the first substrate, and a second substrate located on the liquid crystal layer, the transparent layer having a thickness of 10 nm or more and 40 nm or less.
    Type: Grant
    Filed: September 27, 2016
    Date of Patent: September 10, 2019
    Assignee: Japan Display Inc.
    Inventors: Osamu Itou, Daisuke Sonoda, Masahiro Kosuge
  • Publication number: 20190250742
    Abstract: A detection device includes a first substrate including a first region, a second region and a third region, the second region arranged between the first region and the third region; a detection electrode arranged on the first substrate; a first electrode coupled to the detection electrode, continuously formed from the first region to the third region in a first direction on the first substrate, and including a plurality of concave portions in the second region; and a protective layer formed on the first electrode in the first region, wherein the protective layer is formed on a first one of the concave portions in the second region, wherein the protective film is not formed on a second one of the concave portions in the second region, the second one of the concave portions is arranged nearer to the third region than the first one of the concave portions.
    Type: Application
    Filed: April 25, 2019
    Publication date: August 15, 2019
    Inventors: Koji ISHIZAKI, Daisuke SONODA, Toshimasa ISHIGAKI
  • Publication number: 20190199257
    Abstract: A motor control device at least includes a speed control part for controlling a motor rotation speed. The motor control device includes a torque correction means for suppressing variation in torque constant due to individual differences of motors. In addition, the motor control device corrects the torque constant by using a correction torque coefficient calculated based on an unloaded speed when a fixed voltage is applied. Alternatively, the torque constant is corrected using the correction torque coefficient calculated based on the motor applied voltage when the motor speed is fixed.
    Type: Application
    Filed: February 27, 2019
    Publication date: June 27, 2019
    Inventors: Mitsuhiro SAKAMOTO, Yasuyuki YOKOUCHI, Daisuke SONODA, Ryuta SASAKI
  • Publication number: 20190179186
    Abstract: According to one embodiment, a display device includes an insulating substrate including a first surface, and a second surface opposite to the first surface, a circuit board mounted on the first surface, a supporting member adhered to the insulating substrate on the second surface, and an antistatic layer located between the insulating substrate and the supporting member.
    Type: Application
    Filed: February 14, 2019
    Publication date: June 13, 2019
    Applicant: Japan Display Inc.
    Inventors: Tatsuya IDE, Daisuke SONODA, Yasushi TOMIOKA
  • Patent number: 10310339
    Abstract: In a wall electrode liquid crystal display device, planar distribution of the wall structure and the electrode is optimized to improve a yield. A liquid crystal display device includes a plurality of pixels arranged in a matrix, each of the pixels having an insulator wall structure formed at a border of pixels, a wall electrode formed at a side surface of the wall structure of the border of the pixels, a source electrode which is continuous with the wall electrode and formed of a planar electrode extending in a planar direction, a first common electrode provided between source electrodes at both sides of the pixel to form a retentive capacitance, and a second common electrode provided between wall electrodes on both sides of the pixel. A slit which becomes a border of the wall electrodes of two adjacent pixels is disposed only on a top of the wall structure.
    Type: Grant
    Filed: May 18, 2016
    Date of Patent: June 4, 2019
    Assignee: Japan Display Inc.
    Inventors: Osamu Itou, Takato Hiratsuka, Masanao Yamamoto, Toshimasa Ishigaki, Daisuke Sonoda
  • Patent number: 10310678
    Abstract: When a protective film is formed so as to cover an electrode, a position of an end portion of the protective film is highly accurately adjusted. An electrode substrate includes a second substrate, and a sensing electrode continuously formed on the second substrate from a first region on an upper surface of the second substrate via a second region on the upper surface of the second substrate over a third region on the upper surface of the second substrate. Also, the electrode substrate includes a concave/convex pattern formed on the sensing electrode or the second substrate in the second region, and a protective film formed in the first region and the second region so as to cover the sensing electrode. An end portion of the protective film on the third region side is positioned on the concave/convex pattern.
    Type: Grant
    Filed: April 14, 2015
    Date of Patent: June 4, 2019
    Assignee: Japan Display Inc.
    Inventors: Koji Ishizaki, Daisuke Sonoda, Toshimasa Ishigaki
  • Publication number: 20190138134
    Abstract: To reduce disturbances in display of images due to static electricity without deteriorating optical properties in a display. The display includes a conductive pattern provided on the upper surface of the substrate, a protection layer provided on the upper surface of the substrate to cover the conductive pattern, and a conductive layer provided on the protection layer. The sheet resistance of the conductive pattern is not more than 8 ?/square. A ratio of the total sum of areas of portions of the plurality of sub-pixels that overlap the conductive pattern in a plan view to the total sum of the areas of the plurality of sub-pixels is 1 to 22%. A sheet resistance of the conductive layer is higher than the sheet resistance of the conductive pattern.
    Type: Application
    Filed: January 4, 2019
    Publication date: May 9, 2019
    Inventors: Masanobu Ikeda, Koji Ishizaki, Hayato Kurasawa, Yoshihiro Watanabe, Toshimasa Ishigaki, Daisuke Sonoda, Tatsuya Ide
  • Patent number: 10270377
    Abstract: A motor control device at least includes a speed control part for controlling a motor rotation speed. The motor control device includes a torque correction means for suppressing variation in torque constant due to individual differences of motors. In addition, the motor control device corrects the torque constant by using a correction torque coefficient calculated based on an unloaded speed when a fixed voltage is applied. Alternatively, the torque constant is corrected using the correction torque coefficient calculated based on the motor applied voltage when the motor speed is fixed.
    Type: Grant
    Filed: January 26, 2016
    Date of Patent: April 23, 2019
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Mitsuhiro Sakamoto, Yasuyuki Yokouchi, Daisuke Sonoda, Ryuta Sasaki
  • Patent number: 10247988
    Abstract: According to one embodiment, a display device includes an insulating substrate including a first surface, and a second surface opposite to the first surface, a circuit board mounted on the first surface, a supporting member adhered to the insulating substrate on the second surface, and an antistatic layer located between the insulating substrate and the supporting member.
    Type: Grant
    Filed: June 29, 2017
    Date of Patent: April 2, 2019
    Assignee: Japan Display inc.
    Inventors: Tatsuya Ide, Daisuke Sonoda, Yasushi Tomioka
  • Patent number: 10216345
    Abstract: To reduce disturbances in display of images due to static electricity without deteriorating optical properties in a display. The display includes a conductive pattern provided on the upper surface of the substrate, a protection layer provided on the upper surface of the substrate to cover the conductive pattern, and a conductive layer provided on the protection layer. The sheet resistance of the conductive pattern is not more than 8 ?/square. A ratio of the total sum of areas of portions of the plurality of sub-pixels that overlap the conductive pattern in a plan view to the total sum of the areas of the plurality of sub-pixels is 1 to 22%. A sheet resistance of the conductive layer is higher than the sheet resistance of the conductive pattern.
    Type: Grant
    Filed: July 26, 2017
    Date of Patent: February 26, 2019
    Assignee: Japan Display Inc.
    Inventors: Masanobu Ikeda, Koji Ishizaki, Hayato Kurasawa, Yoshihiro Watanabe, Toshimasa Ishigaki, Daisuke Sonoda, Tatsuya Ide
  • Patent number: 10126888
    Abstract: A manufacturing process of an electrode substrate includes a step of forming a protective layer so as to cover a conductor pattern by applying raw material liquid discharged as droplets to an upper surface of a substrate in a first region and a second region of the upper surface of the substrate. At this time, an application amount of the raw material liquid per unit area in the second region is made smaller than an application amount of the raw material liquid per unit area in the first region, so that an average film thickness of the protective layer of a portion formed in the second region is made smaller than an average film thickness of the protective layer of a portion formed in the first region.
    Type: Grant
    Filed: August 20, 2015
    Date of Patent: November 13, 2018
    Assignee: JAPAN DISPLAY INC.
    Inventors: Koji Ishizaki, Hayato Kurasawa, Masanobu Ikeda, Yoshihiro Watanabe, Toshimasa Ishigaki, Daisuke Sonoda, Tatsuya Ide