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).
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Publication number: 20190179186Abstract: 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: ApplicationFiled: February 14, 2019Publication date: June 13, 2019Applicant: Japan Display Inc.Inventors: Tatsuya IDE, Daisuke SONODA, Yasushi TOMIOKA
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Patent number: 10310339Abstract: 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: GrantFiled: May 18, 2016Date of Patent: June 4, 2019Assignee: Japan Display Inc.Inventors: Osamu Itou, Takato Hiratsuka, Masanao Yamamoto, Toshimasa Ishigaki, Daisuke Sonoda
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Patent number: 10310678Abstract: 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: GrantFiled: April 14, 2015Date of Patent: June 4, 2019Assignee: Japan Display Inc.Inventors: Koji Ishizaki, Daisuke Sonoda, Toshimasa Ishigaki
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Publication number: 20190138134Abstract: 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: ApplicationFiled: January 4, 2019Publication date: May 9, 2019Inventors: Masanobu Ikeda, Koji Ishizaki, Hayato Kurasawa, Yoshihiro Watanabe, Toshimasa Ishigaki, Daisuke Sonoda, Tatsuya Ide
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Patent number: 10270377Abstract: 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: GrantFiled: January 26, 2016Date of Patent: April 23, 2019Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.Inventors: Mitsuhiro Sakamoto, Yasuyuki Yokouchi, Daisuke Sonoda, Ryuta Sasaki
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Patent number: 10247988Abstract: 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: GrantFiled: June 29, 2017Date of Patent: April 2, 2019Assignee: Japan Display inc.Inventors: Tatsuya Ide, Daisuke Sonoda, Yasushi Tomioka
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Patent number: 10216345Abstract: 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: GrantFiled: July 26, 2017Date of Patent: February 26, 2019Assignee: Japan Display Inc.Inventors: Masanobu Ikeda, Koji Ishizaki, Hayato Kurasawa, Yoshihiro Watanabe, Toshimasa Ishigaki, Daisuke Sonoda, Tatsuya Ide
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Method of manufacturing electrode substrate, electrode substrate, display apparatus and input device
Patent number: 10126888Abstract: 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: GrantFiled: August 20, 2015Date of Patent: November 13, 2018Assignee: JAPAN DISPLAY INC.Inventors: Koji Ishizaki, Hayato Kurasawa, Masanobu Ikeda, Yoshihiro Watanabe, Toshimasa Ishigaki, Daisuke Sonoda, Tatsuya Ide -
Patent number: 10073313Abstract: A provided is a liquid crystal display device with a high definition screen and less color mixture. On an array substrate, a pixel is formed between the adjacent video signal lines, a color filter is formed within the pixel, a flattening film is formed on the color filter, a lower layer is formed on the flattening film, and an upper layer having a slit is formed on the lower layer with an interlayer insulating film interposed therebetween; and on the array substrate, an opposite substrate is arranged with a liquid crystal layer interposed therebetween. When a distance from the top of the video signal line working as a light shielding film to the bottom of the liquid crystal layer is defined as d and a space between the centers of the video signal lines separating the pixel is defined as w, a relation of d?0.3w is satisfied.Type: GrantFiled: January 31, 2017Date of Patent: September 11, 2018Assignee: Japan Display Inc.Inventors: Kenji Nakao, Osamu Itou, Toshimasa Ishigaki, Daisuke Sonoda, Takato Hiratsuka
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Patent number: 10074670Abstract: In an embodiment, a color filter substrate includes an substrate, first to fifth lines, first to third switching elements, first to third electrodes, color filter layer between electrodes and the substrate, and insulating layer with first to third apertures. The first electrode is formed in a first area defined by lines at the first line side, and the second electrode is formed in the first area at the second line side. The third electrode is formed in a second area defined by lines. Electrodes are connected to switching elements through apertures respectively. The first aperture is formed at the first line side, and the second aperture is formed at the second line side.Type: GrantFiled: November 30, 2015Date of Patent: September 11, 2018Assignee: Japan Display Inc.Inventors: Osamu Itou, Kenji Nakao, Toshimasa Ishigaki, Daisuke Sonoda
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Patent number: 10001680Abstract: In an LCD device having wall electrodes, four kinds of pixels are used that impart different alignment properties to the liquid crystal molecules. Specifically, the LC molecules are aligned such that: the LC molecules in first pixels twist clockwise and rise in a plus direction; the LC molecules in second pixels twist clockwise and rise in a minus direction; the LC molecules in third pixels twist counterclockwise and rise in the plus direction; and the LC molecules in fourth pixels twist counterclockwise and rise in the minus direction. The pixels of the same type are arranged in rows such that their long sides are adjacent to one another.Type: GrantFiled: November 4, 2014Date of Patent: June 19, 2018Assignee: Japan Display Inc.Inventors: Osamu Itou, Takato Hiratsuka, Toshimasa Ishigaki, Daisuke Sonoda
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Patent number: 9933646Abstract: Detection electrode wirings formed by an ITO film have a high resistance and the detection capability thereof is degraded with the increase of the size and/or resolution. A manufacturing method of a display device includes: (a) arranging liquid crystal between an array substrate and a counter substrate; (b) forming a metal layer and a low-reflection layer on the counter substrate after the step (a); (c) applying an overcoat film onto the metal layer and the low-reflection layer; and (d) curing the overcoat film to form a protection layer. The step (d) cures the overcoat film with light and heat.Type: GrantFiled: June 5, 2017Date of Patent: April 3, 2018Assignee: Japan Display Inc.Inventors: Toshimasa Ishigaki, Daisuke Sonoda, Tatsuya Ide, Koji Ishizaki, Yoshihiro Watanabe, Hayato Kurasawa, Masanobu Ikeda
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Patent number: 9929683Abstract: Provided is a motor drive device which performs switching, with respect to a synchronous motor including a stator around which a motor winding is wound and a rotor holding a permanent magnet, from a synchronous operation in which the synchronous motor is synchronously driven to position-sensorless vector control in which a current supplied to the motor winding is controlled based on a position of the rotor. During the synchronous operation, the present motor drive device calculates, by estimation, an induced voltage error based on the detected current and voltage, performs control of an amplitude of a current instruction such that an error, of a target induced voltage, calculated based on an estimated induced voltage and based on an internal angle becomes equal to the induced voltage error, and switches the mode to the sensorless mode after the error is reduced to be within a range of a predetermined value.Type: GrantFiled: August 28, 2015Date of Patent: March 27, 2018Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.Inventors: Daisuke Sonoda, Mitsuhiro Sakamoto, Toru Tazawa
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Patent number: 9898118Abstract: According to one embodiment, a position detecting substrate includes a first base material, a sensing electrode formed of metal on the first base material and configured to detect a position, an adhesive layer facing the first base material and the sensing electrode and including a resin, and a second base material adhered to the sensing electrode by the adhesive layer, wherein assuming the force required to peel the sensing electrode from the first base material to be A, the force required to peel the adhesive layer from the first base material to be B and the force required to peel the second base material from the adhesive layer to be C, then A>B, or A>C.Type: GrantFiled: November 19, 2015Date of Patent: February 20, 2018Assignee: Japan Display Inc.Inventors: Tatsuya Ide, Toshimasa Ishigaki, Daisuke Sonoda
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Patent number: 9880431Abstract: According to one embodiment, a display device includes a stacked conductive layer. The stacked conductive layer includes a first conductive layer formed of material containing aluminum, and a second conductive layer provided on the first conductive layer, formed of material different from material of which the first conductive layer is formed, and having a higher visible-light absorptivity than that of the first conductive layer. The first conductive layer includes a side wall formed of an oxide film.Type: GrantFiled: December 15, 2016Date of Patent: January 30, 2018Assignee: Japan Display Inc.Inventors: Daisuke Sonoda, Tatsuya Ide, Rintaro Makino
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Publication number: 20180019418Abstract: According to one embodiment, a display device includes an insulating substrate on which a display function layer is provided, and a protection member attached onto the insulating substrate, and the insulating substrate further includes a first surface on which the display function layer is formed and a second surface on an opposite side to the first surface, on which the protection member is attached, and at least one of the first surface and the second surface includes a projection and a recess.Type: ApplicationFiled: July 10, 2017Publication date: January 18, 2018Applicant: Japan Display Inc.Inventors: Daisuke SONODA, Tatsuya IDE, Rintaro MAKINO, Yasushi KAWATA, Takumi SANO
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Publication number: 20180004023Abstract: 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: ApplicationFiled: June 29, 2017Publication date: January 4, 2018Applicant: Japan Display Inc.Inventors: Tatsuya IDE, Daisuke Sonoda, Yasushi Tomioka
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Patent number: 9857617Abstract: A first electrode 30 for the touch panel is formed on an outer side of a counter substrate 200, and the protection film 210 is formed over the first electrode 30 to cover it. A defect 211 in the protection film 210 is filled in with another protection film 210 by inkjet coating. The surface of the protection film 210 is rubbed to a rough surface finish. The polarization plate 220 is attached to the rough surface of the protection film 210 via an adhesive material 221. Since the defective region is repaired by the formation of the protection film 210, corrosion of the first electrode (wiring) 30 due to the presence of the adhesive material 221 can be prevented, and since the surface of the second protection film 210 is made rough, a resulting increase in adhering surface area enhances the adhesion for attaching the polarization plate 220.Type: GrantFiled: August 24, 2015Date of Patent: January 2, 2018Assignee: Japan Display Inc.Inventors: Daisuke Sonoda, Tatsuya Ide, Toshimasa Ishigaki, Masanobu Ikeda, Koji Ishizaki, Hayato Kurasawa, Yoshihiro Watanabe
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Publication number: 20170322652Abstract: 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 8Q/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: ApplicationFiled: July 26, 2017Publication date: November 9, 2017Inventors: Masanobu Ikeda, Koji Ishizaki, Hayato Kurasawa, Yoshihiro Watanabe, Toshimasa Ishigaki, Daisuke Sonoda, Tatsuya Ide
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Patent number: 9804435Abstract: A color filter substrate includes an insulating substrate, a first pixel electrode, a second pixel electrode, a third pixel electrode, a first color filter disposed between the first pixel electrode and the insulating substrate, a second color filter disposed between the second pixel electrode and the insulating substrate, and a third color filter disposed between the third pixel electrode and the insulating substrate, wherein the first pixel electrode, the second pixel electrode, and the third pixel electrode are adjacent to each other, the first color filter has a first end, the second color filter has a second end, and the third color filter has a third end, and two of the first end, the second end, and the third end overlap in the first overlap area.Type: GrantFiled: December 10, 2015Date of Patent: October 31, 2017Assignee: Japan Display Inc.Inventors: Osamu Itou, Kenji Nakao, Toshimasa Ishigaki, Daisuke Sonoda