Patents by Inventor Takuya Ohishi

Takuya Ohishi 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: 10191342
    Abstract: According to the display panel, when a disconnection occurs in a first auxiliary capacitor wiring at a location outside from the outermost wiring among the plurality of second auxiliary capacitor wirings of an active area, the first auxiliary capacitor wiring and an auxiliary capacitor spare wiring are short-circuited at an overlapped portion A, and the auxiliary capacitor spare wiring and a normal first auxiliary capacitor wiring are short-circuited at an overlapped portion B, such that a path is formed through which a signal is transmitted by bypassing the location of the disconnection.
    Type: Grant
    Filed: October 23, 2014
    Date of Patent: January 29, 2019
    Assignee: Sakai Display Products Corporation
    Inventors: Yuko Taniguchi, Takuya Ohishi
  • Patent number: 10088722
    Abstract: A display panel which includes a plurality of display elements disposed in a matrix manner, signal input parts to which signals to be supplied to the plurality of display elements are input, and a plurality of signal wirings which connect the plurality of display elements and the signal input parts, wherein at least a part of the signal wirings is provided with a meander wiring part whose wiring is meandered, the display panel including a repair wiring which is disposed so as to intersect the signal wiring in the meander wiring part at at least two locations and an insulation layer which is provided between the signal wiring and the repair wiring.
    Type: Grant
    Filed: July 10, 2014
    Date of Patent: October 2, 2018
    Assignee: Sakai Display Products Corporation
    Inventors: Hidetoshi Nakagawa, Takuya Ohishi
  • Patent number: 9823529
    Abstract: Provided are a liquid crystal panel and a display apparatus using a liquid crystal panel preventing uneven luminance while contributing a slimmed border of the display apparatus.
    Type: Grant
    Filed: November 29, 2013
    Date of Patent: November 21, 2017
    Assignee: Sakai Display Products Corporation
    Inventors: Akihiro Yamamoto, Takuya Ohishi
  • Patent number: 9792867
    Abstract: Provided is a display device capable of suppressing electrostatic breakdown due to dummy wiring even when the dummy wiring is arranged adjacent to signal wiring supplying a display region with a driving signal. Two first supply circuit boards supply the display pixels in each row with a scanning signal, and four second supply circuit boards supply the display pixels in each column with a data signal. Dummy wiring is arranged at the position on the board adjacent to the outermost scanning signal wiring of a plurality of scanning signal wirings connected to each first supply circuit board. The offset distance from the dummy wiring to the peripheral conductor excluding the scanning signal wiring is longer than the offset distance between the dummy wiring and the scanning signal wiring.
    Type: Grant
    Filed: January 29, 2014
    Date of Patent: October 17, 2017
    Assignee: Sakai Display Products Corporation
    Inventors: Takuya Ohishi, Kohichi Sawada, Hayato Uehara, Akira Yamamoto, Tomohiro Inoue
  • Patent number: 9740068
    Abstract: The active matrix circuit comprises a protection circuit which protects an active element from static electricity. In the protection circuit, a TFT (switching element) is connected via a connection wire between gate wires (signal wires). The connection wire includes a cutoff part, and a mark representing the cutoff part is located. A middle point which is equally distant from two contact holes (connection points) closest to the connection wire is included in a range of the cutoff part. In a case where a defect occurs, the cutoff part of the connection wire connected to the TFT concerned with the defect is cut. The protection circuit is modified by the cutting. The cutoff part is away from the contact hole, thereby preventing an electrically conductive material which disperses from adhering to the contact hole.
    Type: Grant
    Filed: April 2, 2014
    Date of Patent: August 22, 2017
    Assignee: Sakai Display Products Corporation
    Inventor: Takuya Ohishi
  • Publication number: 20170031220
    Abstract: Provided are a liquid crystal panel and a display apparatus using a liquid crystal panel preventing uneven luminance while contributing a slimmed border of the display apparatus. An auxiliary capacitor is coupled to each of a plurality of electrodes in a matrix to correspond to a plurality of subpixels constituting a plurality of pixels. Auxiliary capacitor wirings that are signal lines for transmitting a control signal to the auxiliary capacitor are arranged in a row direction. A plurality of the auxiliary capacitor wirings are classified into groups to belong to the same group for every plurality of rows. Each group is provided with a plurality of branch wirings in the columnar direction, the branch wirings being connected to the auxiliary capacitor wires belonging to the same group on points within a pixel region. Further, a stem wiring is connected to supply the plurality of branch wirings with signals.
    Type: Application
    Filed: November 29, 2013
    Publication date: February 2, 2017
    Applicant: Sakai Display Products Corporation
    Inventors: Akihiro Yamamoto, Takuya Ohishi
  • Publication number: 20160259222
    Abstract: According to the display panel, when a disconnection occurs in a first auxiliary capacitor wiring at a location outside from the outermost wiring among the plurality of second auxiliary capacitor wirings of an active area, the first auxiliary capacitor wiring and an auxiliary capacitor spare wiring are short-circuited at an overlapped portion A, and the auxiliary capacitor spare wiring and a normal first auxiliary capacitor wiring are short-circuited at an overlapped portion B, such that a path is formed through which a signal is transmitted by bypassing the location of the disconnection.
    Type: Application
    Filed: October 23, 2014
    Publication date: September 8, 2016
    Inventors: Yuko Taniguchi, Takuya Ohishi
  • Publication number: 20160161814
    Abstract: The provision of a display panel and a display device that are provided with repair wires for repairing breaks in lead-out wires. Said display panel is provided with a plurality of display elements arrayed in a matrix pattern, a signal input unit to which a signal to be supplied to the display elements is inputted, and a plurality of signal wires connecting the display elements to the signal input unit. At least some of the signal wires are provided with serpentine wire sections in which the wire is laid out in a serpentine manner. The display panel is also provided with repair wires, each of which is laid out so as to intersect a serpentine wire section of a signal wire at at least two points, and an insulating layer provided between the signal wires and the repair wires.
    Type: Application
    Filed: July 10, 2014
    Publication date: June 9, 2016
    Applicant: Sakai Display Products Corporation
    Inventors: Hidetoshi Nakagawa, Takuya Ohishi
  • Patent number: 9276019
    Abstract: A method of manufacturing an array substrate 20 according to the present invention includes a line forming step, and line forming step includes following performances. A plurality of source lines 27 are formed on a glass substrate GS so as to extend from a first region A1 on the glass substrate GS to a second region A2 that is adjacent to the first region on an outer side thereof. A plurality of source driver side check lines 45A are formed on the glass substrate GS so as to extend from the second region A2 to a third region that is adjacent to the first region A1 on an outer side thereof and adjacent to the second region A2. A plurality of first line connection portions 49 are formed in the second region A2 and the first line connection portions 49 connect the source lines 27 and the first source driver side check lines 45A. A capacity stem line 43 and a common line 44 are formed to extend from the first region A1 to the third region A3.
    Type: Grant
    Filed: July 12, 2012
    Date of Patent: March 1, 2016
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Takaharu Yamada, Ryohki Itoh, Masahiro Yoshida, Hidetoshi Nakagawa, Takuya Ohishi, Masahiro Matsuda, Kazutoshi Kida
  • Publication number: 20150379948
    Abstract: Provided is a display device capable of suppressing electrostatic breakdown due to dummy wiring even when the dummy wiring is arranged adjacent to signal wiring supplying a display region with a driving signal. Two first supply circuit boards supply the display pixels in each row with a scanning signal, and four second supply circuit boards supply the display pixels in each column with a data signal. Dummy wiring is arranged at the position on the board adjacent to the outermost scanning signal wiring of a plurality of scanning signal wirings connected to each first supply circuit board. The offset distance from the dummy wiring to the peripheral conductor excluding the scanning signal wiring is longer than the offset distance between the dummy wiring and the scanning signal wiring.
    Type: Application
    Filed: January 29, 2014
    Publication date: December 31, 2015
    Inventors: Takuya Ohishi, Kohichi Sawada, Hayato Uehara, Akira Yamamoto, Tomohiro Inoue
  • Publication number: 20150316824
    Abstract: The active matrix circuit comprises a protection circuit which protects an active element from static electricity. In the protection circuit, a TFT (switching element) is connected via a connection wire between gate wires (signal wires). The connection wire includes a cutoff part, and a mark representing the cutoff part is located. A middle point which is equally distant from two contact holes (connection points) closest to the connection wire is included in a range of the cutoff part. In a case where a defect occurs, the cutoff part of the connection wire connected to the TFT concerned with the defect is cut. The protection circuit is modified by the cutting. The cutoff part is away from the contact hole, thereby preventing an electrically conductive material which disperses from adhering to the contact hole.
    Type: Application
    Filed: April 2, 2014
    Publication date: November 5, 2015
    Inventor: Takuya Ohishi
  • Patent number: 9076395
    Abstract: A liquid crystal display device (100) according to the present invention includes a plurality of pixels arrayed in a matrix, n number of the pixels (n is an even number of 4 or greater) being included in a color display pixel (CP). The liquid crystal display device includes an active matrix substrate (10) including a plurality of scanning lines (12) extending in a row direction and a plurality of signal lines (13) extending in a column direction; and a signal line driving circuit (3) that supplies, as a display signal, a gray scale voltage of a positive or negative polarity to each of the plurality of signal lines. The plurality of signal lines include a first type of signal line (13a) which does not intersect another signal line, and a second type of signal line (13b) which intersects a signal line adjacent thereto outside a display area in the state where an insulating film (16) is interposed therebetween.
    Type: Grant
    Filed: June 2, 2011
    Date of Patent: July 7, 2015
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Akihiro Shohraku, Toshifumi Yagi, Masahiro Matsuda, Hidetoshi Nakagawa, Takuya Ohishi, Tomofumi Kubota, Kazushige Miyamoto, Haruhisa Suzuki
  • Publication number: 20150044789
    Abstract: A method of manufacturing an array substrate 20 according to the present invention includes a line forming step, and line forming step includes following performances. A plurality of source lines 27 are formed on a glass substrate GS so as to extend from a first region A1 on the glass substrate GS to a second region A2 that is adjacent to the first region on an outer side thereof. A plurality of source driver side check lines 45A are formed on the glass substrate GS so as to extend from the second region A2 to a third region that is adjacent to the first region A1 on an outer side thereof and adjacent to the second region A2. A plurality of first line connection portions 49 are formed in the second region A2 and the first line connection portions 49 connect the source lines 27 and the first source driver side check lines 45A. A capacity stem line 43 and a common line 44 are formed to extend from the first region A1 to the third region A3.
    Type: Application
    Filed: July 12, 2012
    Publication date: February 12, 2015
    Applicant: SHARP KABUSHIKI KAISHA
    Inventors: Takaharu Yamada, Ryohki Itoh, Masahiro Yoshida, Hidetoshi Nakagawa, Takuya Ohishi, Masahiro Matsuda, Kazutoshi Kida
  • Publication number: 20130242511
    Abstract: A wiring substrate of the present invention has, on a first dummy wiring disposing section (105a) in a first lead-out wiring section (105), a dummy wiring line (2) that is formed of a light-shielding metal in positions that correspond to a front and a rear of a bent portion (10) of a wiring line (1) by having an insulating layer therebetween. As a result, sufficient countermeasures against disconnection of the wiring line (1) are taken in the first lead-out wiring section, and a sufficient aperture ratio for seal curing with UV radiation can be ensured.
    Type: Application
    Filed: November 10, 2011
    Publication date: September 19, 2013
    Applicant: SHARP KABUSHIKI KAISHA
    Inventor: Takuya Ohishi
  • Patent number: 8520157
    Abstract: When an active area (AA) side of CS trunk wiring groups (BB1, BB2) is viewed as the inner side, a feed portion (F) of at least one auxiliary capacitance bus line (CsL), which is a path for current flow from the active area (AA) to a point of connection on at least one of CS trunk wiring lines (bb) of each of the CS trunk wiring groups (BB1, BB2), is routed from a start point (S) on the active area (AA) side, through a region (R1) on the inner side of the point of connection, and to a region (R2) on the outer side of the point of connection and connected to the point of connection.
    Type: Grant
    Filed: July 16, 2009
    Date of Patent: August 27, 2013
    Assignee: Sharp Kabushiki Kaisha
    Inventor: Takuya Ohishi
  • Publication number: 20130070003
    Abstract: A liquid crystal display device (100) according to the present invention includes a plurality of pixels arrayed in a matrix, n number of the pixels (n is an even number of 4 or greater) being included in a color display pixel (CP). The liquid crystal display device includes an active matrix substrate (10) including a plurality of scanning lines (12) extending in a row direction and a plurality of signal lines (13) extending in a column direction; and a signal line driving circuit (3) that supplies, as a display signal, a gray scale voltage of a positive or negative polarity to each of the plurality of signal lines. The plurality of signal lines include a first type of signal line (13a) which does not intersect another signal line, and a second type of signal line (13b) which intersects a signal line adjacent thereto outside a display area in the state where an insulating film (16) is interposed therebetween.
    Type: Application
    Filed: June 2, 2011
    Publication date: March 21, 2013
    Inventors: Akihiro Shohraku, Toshifumi Yagi, Masahiro Matsuda, Hidetoshi Nakagawa, Takuya Ohishi, Tomofumi Kubota, Kazushige Miyamoto, Haruhisa Suzuki
  • Publication number: 20110193847
    Abstract: When an active area (AA) side of CS trunk wiring groups (BB1, BB2) is viewed as the inner side, a feed portion (F) of at least one auxiliary capacitance bus line (CsL), which is a path for current flow from the active area (AA) to a point of connection on at least one of CS trunk wiring lines (bb) of each of the CS trunk wiring groups (BB1, BB2), is routed from a start point (S) on the active area (AA) side, through a region (R1) on the inner side of the point of connection, and to a region (R2) on the outer side of the point of connection and connected to the point of connection.
    Type: Application
    Filed: July 16, 2009
    Publication date: August 11, 2011
    Applicant: SHARP KABUSHIKI KAISHA
    Inventor: Takuya Ohishi