Patents by Inventor Tomotoshi Tsujioka

Tomotoshi Tsujioka 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: 10175834
    Abstract: A touch panel (a position input device) includes a trace group including traces arranged at intervals, and an electrode portion including a driving electrode and a detection electrode. The traces, the driving electrode, and the detection electrode are made of a light transmissive conductive film. The driving electrode and the detection electrode are arranged adjacent to the trace group and include a slit extending along the traces.
    Type: Grant
    Filed: January 8, 2015
    Date of Patent: January 8, 2019
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Tomotoshi Tsujioka, Shinichi Miyazaki, Kohji Yabuta, Mikihiro Noma
  • Patent number: 10175836
    Abstract: A touch panel is realized that is able to decrease the amount of dead space at the periphery of the touch panel and that has highly accurate touch panel sensitivity. In a touch panel, Y direction conductive patterns are arranged so as to be separated from wiring patterns in Y direction conductive pattern regions between electrode units of X direction conductive patterns. As a result, in this conductive sheet, it is possible to appropriately prevent the occurrence of parasitic capacitance resulting from the Y direction conductive patterns and the wiring patterns. Therefore, in a touch panel device or the like that uses such a touch panel, it is possible to effectively prevent the generation of noise that overlaps sense signals as a result of the above-mentioned parasitic capacitance, thereby making it possible to realize highly accurate touch panel sensitivity.
    Type: Grant
    Filed: May 15, 2015
    Date of Patent: January 8, 2019
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Hiroki Makino, Mikihiro Noma, Tomotoshi Tsujioka, Daiji Kitagawa, Hiroyuki Ogawa, Yasuhiro Sugita
  • Patent number: 9971439
    Abstract: A configuration of a touch-panel-equipped display device in which the occurrence of moire can be suppressed is provided. A touch-panel-equipped display device (1) includes: a color filter layer (121) that includes a plurality of pixels (PX) arranged in matrix along a first direction and a second direction that intersect at a right angle; and a sensor pattern layer (1220) that includes a plurality of electrodes (1220) arranged along the second direction at a predetermined sensor interval (SY) and is disposed so as to overlap the color filter layer (121) in a plan view. Each of the plurality of pixels (PX) includes n color filters (121R, 121G, 121B) that transmit light in different wavelength regions from one another, where n represents an integer of 3 or more. The n color filters are arranged at predetermined subpixel intervals (CSFY) along the second direction.
    Type: Grant
    Filed: February 26, 2015
    Date of Patent: May 15, 2018
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Takatoshi Kira, Tomotoshi Tsujioka, Shinichi Miyazaki, Kohji Yabuta
  • Publication number: 20170090625
    Abstract: A touch panel is realized that is able to decrease the amount of dead space at the periphery of the touch panel and that has highly accurate touch panel sensitivity. In a touch panel, Y direction conductive patterns are arranged so as to be separated from wiring patterns in Y direction conductive pattern regions between electrode units of X direction conductive patterns. As a result, in this conductive sheet, it is possible to appropriately prevent the occurrence of parasitic capacitance resulting from the Y direction conductive patterns and the wiring patterns. Therefore, in a touch panel device or the like that uses such a touch panel, it is possible to effectively prevent the generation of noise that overlaps sense signals as a result of the above-mentioned parasitic capacitance, thereby making it possible to realize highly accurate touch panel sensitivity.
    Type: Application
    Filed: May 15, 2015
    Publication date: March 30, 2017
    Applicant: Sharp Kabushiki Kaisha
    Inventors: Hiroki MAKINO, Mikihiro NOMA, Tomotoshi TSUJIOKA, Daiji KITAGAWA, Hiroyuki OGAWA, Yasuhiro SUGITA
  • Publication number: 20170083136
    Abstract: A configuration of a touch-panel-equipped display device in which the occurrence of moire can be suppressed is provided. A touch-panel-equipped display device (1) includes: a color filter layer (121) that includes a plurality of pixels (PX) arranged in matrix along a first direction and a second direction that intersect at a right angle; and a sensor pattern layer (1220) that includes a plurality of electrodes (1220) arranged along the second direction at a predetermined sensor interval (SY) and is disposed so as to overlap the color filter layer (121) in a plan view. Each of the plurality of pixels (PX) includes n color filters (121R, 121G, 121B) that transmit light in different wavelength regions from one another, where n represents an integer of 3 or more. The n color filters are arranged at predetermined subpixel intervals (CSFY) along the second direction.
    Type: Application
    Filed: February 26, 2015
    Publication date: March 23, 2017
    Inventors: Takatoshi KIRA, Tomotoshi TSUJIOKA, Shinichi MIYAZAKI, Kohji YABUTA
  • Patent number: 9529462
    Abstract: A touch panel (2) includes: a glass substrate (4); X-direction electrodes and Y-direction electrodes (14) provided above the glass substrate (4); lines (15) provided above the glass substrate (4) and electrically connected with the X- and Y-direction electrodes (14); an insulating resin layer (12) covering the X- and Y-direction electrodes (14) and lines (15); and a conductive layer (23) provided above the insulating resin layer (12) to allow static electricity entering the panel from the outside to flow therethrough.
    Type: Grant
    Filed: October 28, 2013
    Date of Patent: December 27, 2016
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Masayuki Hata, Kohji Yabuta, Kosuke Nagata, Shinichi Miyazaki, Tomotoshi Tsujioka, Mikihiro Noma
  • Publication number: 20160299603
    Abstract: A touch panel (a position input device) includes a trace group including traces arranged at intervals, and an electrode portion including a driving electrode and a detection electrode. The traces, the driving electrode, and the detection electrode are made of a light transmissive conductive film. The driving electrode and the detection electrode are arranged adjacent to the trace group and include a slit extending along the traces.
    Type: Application
    Filed: January 8, 2015
    Publication date: October 13, 2016
    Applicant: Sharp Kabushiki Kaisha
    Inventors: Tomotoshi TSUJIOKA, Shinichi MIYAZAKI, Kohji YABUTA, Mikihiro NOMA
  • Patent number: 9316858
    Abstract: A liquid crystal display device includes a liquid crystal display panel, a functional panel, a photo curable adhesive, a transparent electrode, and a light blocking line. The liquid crystal panel includes a display area to display an image and a non-display area surrounding the display area. The functional panel is attached to the liquid crystal panel, and includes a display overlapping area overlapping with the display area and a display non-overlapping area overlapping with the non-display area in a plan view. The photo curable adhesive is arranged between the panels and cured by light applied thereto. The transparent electrode is arranged in the display overlapping area and made of light transmissive conductive material. The light blocking line is arranged in the display non-overlapping area and made of light shielding metal material. The light blocking line partially has a light-transmission cutout that is configured to allow the light to pass therethrough.
    Type: Grant
    Filed: April 13, 2012
    Date of Patent: April 19, 2016
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Kohji Yabuta, Tomotoshi Tsujioka, Kosuke Nagata, Mikihiro Noma, Masayuki Hata, Kiyoshi Inada, Hideaki Takizawa, Masahiro Kihara
  • Patent number: 9218098
    Abstract: A conducting layer (7) is formed in a shape of a grid having a predetermined width of lines extending along the first direction (horizontal direction in the drawing) and the second direction (vertical direction in the drawing). In a region that, when seen in planar view, overlaps those lines of the conducting layer (7) which extend along the first direction, lines of an insulating light-blocking layer (6) that are wider than those of the conduction layer (7) are arranged at predetermined intervals along the second direction. The conducting layer (7) is broken at predetermined places in a region that overlaps the insulating light-blocking layer 6 when seen in plane view. This makes it possible to achieve a liquid crystal display device including a touch panel substrate that has a high aperture ratio and that can suppress leakage of light through cuts in a conducting layer.
    Type: Grant
    Filed: December 6, 2012
    Date of Patent: December 22, 2015
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Masayuki Hata, Tomotoshi Tsujioka, Mikihiro Noma, Kazutoshi Kida
  • Publication number: 20150253809
    Abstract: A touch panel (2) includes: a glass substrate (4); X-direction electrodes and Y-direction electrodes (14) provided above the glass substrate (4); lines (15) provided above the glass substrate (4) and electrically connected with the X- and Y-direction electrodes (14); an insulating resin layer (12) covering the X- and Y-direction electrodes (14) and lines (15); and a conductive layer (23) provided above the insulating resin layer (12) to allow static electricity entering the panel from the outside to flow therethrough.
    Type: Application
    Filed: October 28, 2013
    Publication date: September 10, 2015
    Inventors: Masayuki Hata, Kohji Yabuta, Kosuke Nagata, Shinichi Miyazaki, Tomotoshi Tsujioka, Mikihiro Noma
  • Publication number: 20140327846
    Abstract: A conducting layer (7) is formed in a shape of a grid having a predetermined width of lines extending along the first direction (horizontal direction in the drawing) and the second direction (vertical direction in the drawing). In a region that, when seen in planar view, overlaps those lines of the conducting layer (7) which extend along the first direction, lines of an insulating light-blocking layer (6) that are wider than those of the conduction layer (7) are arranged at predetermined intervals along the second direction. The conducting layer (7) is broken at predetermined places in a region that overlaps the insulating light-blocking layer 6 when seen in plane view. This makes it possible to achieve a liquid crystal display device including a touch panel substrate that has a high aperture ratio and that can suppress leakage of light through cuts in a conducting layer.
    Type: Application
    Filed: December 6, 2012
    Publication date: November 6, 2014
    Inventors: Masayuki Hata, Tomotoshi Tsujioka, Mikihiro Noma, Kazutoshi Kida
  • Publication number: 20140248817
    Abstract: A method of manufacturing a display device provided with a thin-film electronic circuit 11 includes: forming the thin-film electronic circuit 11 having a glass substrate 21 that is temporarily attached to a support member 23 by thinning the glass substrate 21 through etching while the glass substrate 21 is temporarily attached to the support member 23; attaching the thin-film electronic circuit 11 that is temporarily attached to the support member 23 to a display panel; and peeling off the support member 23 from the thin-film electronic circuit 11 attached to the display panel.
    Type: Application
    Filed: October 5, 2012
    Publication date: September 4, 2014
    Applicant: SHARP KABUSHIKI KAISHA
    Inventors: Mikihiro Noma, Tomotoshi Tsujioka, Minoru Mayumi, Takatoshi Kira, Hiroki Makino, Gen Nagaoka
  • Publication number: 20140043569
    Abstract: A liquid crystal display device includes a liquid crystal display panel, a functional panel, a photo curable adhesive, a transparent electrode, and a light blocking line. The liquid crystal panel includes a display area to display an image and a non-display area surrounding the display area. The functional panel is attached to the liquid crystal panel, and includes a display overlapping area overlapping with the display area and a display non-overlapping area overlapping with the non-display area in a plan view. The photo curable adhesive is arranged between the panels and cured by light applied thereto. The transparent electrode is arranged in the display overlapping area and made of light transmissive conductive material. The light blocking line is arranged in the display non-overlapping area and made of light shielding metal material. The light blocking line partially has a light-transmission cutout that is configured to allow the light to pass therethrough.
    Type: Application
    Filed: April 13, 2012
    Publication date: February 13, 2014
    Applicant: SHARP KABUSHIKI KAISHA
    Inventors: Kohji Yabuta, Tomotoshi Tsujioka, Kosuke Nagata, Mikihiro Noma, Masayuki Hata, Kiyoshi Inada, Hideaki Takizawa, Masahiro Kihara
  • Patent number: 5296955
    Abstract: A liquid crystal display apparatus has a lamination structure in which an upper polarizer, a phase difference plate, a supertwisted nematic liquid crystal cell sandwiched between upper and lower substrates, a lower polarizer, and a reflection plate are stacked in this sequence. In order to obtain an achromatic display which is stable against the temperature change, the retardation Re of the phase difference plate is set to 555 to 580 nm, the product d.multidot..DELTA.n of the liquid crystal cell thickness and the refractive anisotropy of the liquid crystal display element is set to 0.76.+-.0.02, the angle .alpha. formed by the liquid crystal molecular orientation axis of the upper substrate and the upper polarizer is set to 55 to 65 deg., the angle .beta. formed by the liquid crystal molecular orientation axis of the lower substrate and the lower polarizer is set to 40 to 50 deg., the angle .theta.
    Type: Grant
    Filed: December 7, 1992
    Date of Patent: March 22, 1994
    Assignee: Sharp Kabushiki Kaisha
    Inventor: Tomotoshi Tsujioka