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).
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Patent number: 10175834Abstract: 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: GrantFiled: January 8, 2015Date of Patent: January 8, 2019Assignee: Sharp Kabushiki KaishaInventors: Tomotoshi Tsujioka, Shinichi Miyazaki, Kohji Yabuta, Mikihiro Noma
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Patent number: 10175836Abstract: 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: GrantFiled: May 15, 2015Date of Patent: January 8, 2019Assignee: SHARP KABUSHIKI KAISHAInventors: Hiroki Makino, Mikihiro Noma, Tomotoshi Tsujioka, Daiji Kitagawa, Hiroyuki Ogawa, Yasuhiro Sugita
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Patent number: 9971439Abstract: 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: GrantFiled: February 26, 2015Date of Patent: May 15, 2018Assignee: SHARP KABUSHIKI KAISHAInventors: Takatoshi Kira, Tomotoshi Tsujioka, Shinichi Miyazaki, Kohji Yabuta
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Publication number: 20170090625Abstract: 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: ApplicationFiled: May 15, 2015Publication date: March 30, 2017Applicant: Sharp Kabushiki KaishaInventors: Hiroki MAKINO, Mikihiro NOMA, Tomotoshi TSUJIOKA, Daiji KITAGAWA, Hiroyuki OGAWA, Yasuhiro SUGITA
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Publication number: 20170083136Abstract: 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: ApplicationFiled: February 26, 2015Publication date: March 23, 2017Inventors: Takatoshi KIRA, Tomotoshi TSUJIOKA, Shinichi MIYAZAKI, Kohji YABUTA
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Patent number: 9529462Abstract: 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: GrantFiled: October 28, 2013Date of Patent: December 27, 2016Assignee: Sharp Kabushiki KaishaInventors: Masayuki Hata, Kohji Yabuta, Kosuke Nagata, Shinichi Miyazaki, Tomotoshi Tsujioka, Mikihiro Noma
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Publication number: 20160299603Abstract: 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: ApplicationFiled: January 8, 2015Publication date: October 13, 2016Applicant: Sharp Kabushiki KaishaInventors: Tomotoshi TSUJIOKA, Shinichi MIYAZAKI, Kohji YABUTA, Mikihiro NOMA
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Patent number: 9316858Abstract: 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: GrantFiled: April 13, 2012Date of Patent: April 19, 2016Assignee: SHARP KABUSHIKI KAISHAInventors: Kohji Yabuta, Tomotoshi Tsujioka, Kosuke Nagata, Mikihiro Noma, Masayuki Hata, Kiyoshi Inada, Hideaki Takizawa, Masahiro Kihara
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Patent number: 9218098Abstract: 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: GrantFiled: December 6, 2012Date of Patent: December 22, 2015Assignee: Sharp Kabushiki KaishaInventors: Masayuki Hata, Tomotoshi Tsujioka, Mikihiro Noma, Kazutoshi Kida
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Publication number: 20150253809Abstract: 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: ApplicationFiled: October 28, 2013Publication date: September 10, 2015Inventors: Masayuki Hata, Kohji Yabuta, Kosuke Nagata, Shinichi Miyazaki, Tomotoshi Tsujioka, Mikihiro Noma
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Publication number: 20140327846Abstract: 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: ApplicationFiled: December 6, 2012Publication date: November 6, 2014Inventors: Masayuki Hata, Tomotoshi Tsujioka, Mikihiro Noma, Kazutoshi Kida
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Publication number: 20140248817Abstract: 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: ApplicationFiled: October 5, 2012Publication date: September 4, 2014Applicant: SHARP KABUSHIKI KAISHAInventors: Mikihiro Noma, Tomotoshi Tsujioka, Minoru Mayumi, Takatoshi Kira, Hiroki Makino, Gen Nagaoka
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Publication number: 20140043569Abstract: 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: ApplicationFiled: April 13, 2012Publication date: February 13, 2014Applicant: SHARP KABUSHIKI KAISHAInventors: Kohji Yabuta, Tomotoshi Tsujioka, Kosuke Nagata, Mikihiro Noma, Masayuki Hata, Kiyoshi Inada, Hideaki Takizawa, Masahiro Kihara
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Patent number: 5296955Abstract: 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: GrantFiled: December 7, 1992Date of Patent: March 22, 1994Assignee: Sharp Kabushiki KaishaInventor: Tomotoshi Tsujioka