Patents by Inventor Ryutaro Oke

Ryutaro Oke 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).

  • Publication number: 20170293192
    Abstract: The present invention is intended to control the color temperature of white exhibited by a liquid crystal display device. White is produced when light waves emitted through pixels associated with three colors of red, green, and blue have maximum intensities. The amounts of light emitted through the respective pixels are controlled by differentiating the shapes of the pixel electrodes disposed at the respective pixels from one another. Thus, the color temperature of white is controlled. Otherwise, the shapes of interceptive films disposed at the respective pixels are differentiated from one another in order to control light waves emitted through the respective pixels. Thus, the color temperature of white is controlled. The interceptive film may be shaped like the pixel electrode. Otherwise, the interceptive film may be realized with an interceptive pattern other than that of the pixel electrode or one of openings bored in a black matrix.
    Type: Application
    Filed: June 7, 2017
    Publication date: October 12, 2017
    Inventors: Ikuko MORI, Munenori MOTOOKA, Ryutaro OKE, Kazunori OJIMA, Kikuo ONO
  • Publication number: 20170255052
    Abstract: A liquid crystal display device includes a first substrate and a second substrate disposed in opposition. The first substrate includes gate lines, data lines, pixel electrodes, and an insulating film being superimposed, in plan view, over the gate lines, the data lines, and the pixel electrodes. The second substrate includes a first colored portion transmitting light of a first color, a second colored portion transmitting light of a second color, and a light-shielding portion disposed in a boundary area between the first colored portion and the second colored portion, for blocking transmittance of light of the first color and light of the second color. The insulating film includes a first portion overlapping, in plan view, the first colored portion or the second colored portion, and a second portion overlapping, in plan view, the light-shielding portion and being of thicker film thickness than the first portion.
    Type: Application
    Filed: March 3, 2017
    Publication date: September 7, 2017
    Inventors: Tatsuhito SAKAKIBARA, Daisuke KAJITA, Daisuke FUSE, Ryutaro OKE
  • Patent number: 9709866
    Abstract: A liquid crystal display is provided that includes a first substrate on a back surface side, a second substrate on a display surface side and a liquid crystal layer provided between the first and second substrates. The display also includes a plurality of sub-pixels including one or more green sub-pixels and one or more non-green sub-pixels. The first substrate includes first and second wirings provided at the boundary between adjacent sub-pixels. When a green sub-pixel is adjacent to a non-green sub-pixel, the first wiring is provided at a shifted position that is closer to the non-green sub-pixel than the green sub-pixel. Accordingly, when a non-green image is to be displayed, the display can reduce the amount of color mixing of light passing through a green color filter with the light passing through a non-green color filter, particularly when the display is viewed at oblique angles.
    Type: Grant
    Filed: March 30, 2016
    Date of Patent: July 18, 2017
    Assignee: Panasonic Liquid Crystal Display Co., Ltd.
    Inventors: Tatsuhito Sakakibara, Ryutaro Oke, Daisuke Kajita
  • Patent number: 9703161
    Abstract: The present invention is intended to control the color temperature of white exhibited by a liquid crystal display device. White is produced when light waves emitted through pixels associated with three colors of red, green, and blue have maximum intensities. The amounts of light emitted through the respective pixels are controlled by differentiating the shapes of the pixel electrodes disposed at the respective pixels from one another. Thus, the color temperature of white is controlled. Otherwise, the shapes of interceptive films disposed at the respective pixels are differentiated from one another in order to control light waves emitted through the respective pixels. Thus, the color temperature of white is controlled. The interceptive film may be shaped like the pixel electrode. Otherwise, the interceptive film may be realized with an interceptive pattern other than that of the pixel electrode or one of openings bored in a black matrix.
    Type: Grant
    Filed: January 30, 2014
    Date of Patent: July 11, 2017
    Assignees: Japan Display Inc., Panasonic Liquid Crystal Display Co., Ltd.
    Inventors: Ikuko Mori, Munenori Motooka, Ryutaro Oke, Kazunori Ojima, Kikuo Ono
  • Patent number: 9651836
    Abstract: A first substrate of a display device includes a plurality of signal lines which are arranged in an image display area and a plurality of driving circuits which drive the plurality of signal lines, the driving circuit is electrically connected to a metal line which is formed in the first substrate in an area of the first substrate overlapping the driving circuit in planar view, the metal line is electrically connected via a contact hole, in the area, to a lead-out line which is formed in a layer different from that of the metal line in the first substrate, the lead-out line is extended to the outside of the area and electrically connected to the signal line.
    Type: Grant
    Filed: February 26, 2014
    Date of Patent: May 16, 2017
    Assignee: Panasonic Liquid Crystal Display Co., Ltd.
    Inventors: Kazuo Kita, Ryutaro Oke, Genshiro Kawachi
  • Publication number: 20170077064
    Abstract: A display device comprises: control circuit substrates disposed in a rear surface of a display panel, a control circuit that generates a control signal in order to control a data line driving circuit and a gate line driving circuit; gate connecting wirings; and a substrate connecting wiring, wherein each of the control circuit substrates includes: a first-side gate connecting part disposed on a first side; and a second-side substrate connecting part disposed on a second side, and the first-side gate connecting part and the second-side substrate connecting part are disposed so as not to overlap each other when the control circuit substrate is viewed in the first direction from the first side toward the second side.
    Type: Application
    Filed: September 14, 2016
    Publication date: March 16, 2017
    Inventors: Junichi MARUYAMA, Ryutaro OKE, Takashi NAKAI, Isamu SHIGEMOTO
  • Publication number: 20160372074
    Abstract: A method of manufacturing a display device is provided. The display device includes a display region divided into a first display region and a second display region by a border region extending in the second direction, a plurality of data lines including a plurality of first data lines arranged in the first display region, and a plurality of second data lines arranged in the second display region. Each of the plurality of first data lines and each of the plurality of second data lines are electrically isolated from each other. The method includes steps of forming a plurality of conductive lines on a substrate extending from a top side to a bottom side of the display region in the first direction, and separating the plurality of conductive lines into the plurality of first data lines and the plurality of second data lines.
    Type: Application
    Filed: June 18, 2015
    Publication date: December 22, 2016
    Inventors: Tetsuo FUKAMI, Ryutaro OKE
  • Publication number: 20160372062
    Abstract: A liquid crystal display device includes an image display area including a plurality of pixels arranged in a matrix, and a peripheral area disposed outside the image display area and including circuitry. The peripheral area includes a first potential supply layer, a second potential supply layer and a third potential supply layer. The first potential supply layer is provided to supply a potential to a common electrode of the plurality of pixels in the image display area. The third potential supply layer is connected to power supply circuitry for receiving the potential. The second potential supply layer includes bridge patterns separated by spaces, and the bridge patterns connect the first potential supply layer and the second potential supply layer.
    Type: Application
    Filed: June 18, 2015
    Publication date: December 22, 2016
    Inventors: Tomohiro NAKAYAMA, Hiroyuki YABUKI, Ryutaro OKE
  • Publication number: 20160357329
    Abstract: A display device with built-in touch detection function, the display device includes source lines, detection lines, common lines, gate lines, pixels, control elements, each applying to a corresponding pixel a voltage, a common line driving circuit including a pulse generator that sequentially drives the common lines, the pulse generator generating a first pulse signal for each of the common lines, a pulse compensator, the pulse compensator generating a second pulse signal based on the first pulse signal and the potential input from each of the common lines, the second pulse signal reducing a variation in potential at each of the common lines in response to a potential at each of the source lines, the pulse compensator outputting the second pulse signal to a corresponding common line, and a touch detector that detects a position specified by a user according to the second pulse signal.
    Type: Application
    Filed: August 22, 2016
    Publication date: December 8, 2016
    Inventors: Ryutaro OKE, Junichi MARUYAMA
  • Publication number: 20160343279
    Abstract: Provided is a display device, including: a display panel including a plurality of test transistors each of which is connected to one wiring line selected out of data lines and gate lines, a control signal input pad configured to input a control signal for putting the test transistors into one of an on state and an off state during a test of the display panel, and an off-voltage input terminal configured to input an off voltage for fixing the plurality of test transistors to the off state during display operation; gate driver ICs provided outside the display panel; a gate driver external circuit board to which the gate driver ICs are electrically connected; and off-voltage input wiring through which the off voltage is input to the off-voltage input terminal, in which the off-voltage input wiring is electrically connected to the off-voltage input terminal via the gate driver external circuit board.
    Type: Application
    Filed: May 19, 2016
    Publication date: November 24, 2016
    Inventors: Ryutaro OKE, Masahiro ISHII, Tomohiro NAKAYAMA, Kazuhiro KANAI
  • Patent number: 9489901
    Abstract: A display device includes a divided display region that includes pixels and gate drivers each configured to scan gate lines included in the divided display region. The display device also includes source drivers each configured to output, for each of groups of data lines, a video signal based on a grayscale signal in order from a corresponding gate driver side based on each delay amount set in advance and a register unit configured to store the each delay amount. The register unit stores the each delay amount so that, when at least one gate driver scans in a first order from an edge of the divided display region toward a center, the video signal corresponding to the pixels positioned on a centermost side of the display region is output to the pixels, in a period including a part of a vertical flyback period of after one frame period has finished.
    Type: Grant
    Filed: January 7, 2015
    Date of Patent: November 8, 2016
    Assignee: Panasonic Liquid Crystal Display Co., Ltd.
    Inventors: Takashi Nakai, Ryutaro Oke, Toshiki Onishi, Junichi Maruyama
  • Patent number: 9423645
    Abstract: Provided is a liquid crystal display device, including: a TFT substrate including a pixel electrode; a liquid crystal layer provided on the TFT substrate; and a color filter substrate provided on the liquid crystal layer. The color filter substrate includes a light non-transmitting layer made of a material that limits transmission of light. The light non-transmitting layer includes: a display region including a hole portion filled with a color resist that transmits light; and a frame-shaped non-display region surrounding the display region. The frame-shaped non-display region has a slit formed in one side thereof, along the one side, the slit passing through the light non-transmitting layer. The slit is filled with a member made of the same material as a material of the color resist.
    Type: Grant
    Filed: February 28, 2014
    Date of Patent: August 23, 2016
    Assignee: Panasonic Liquid Crystal Display Co., Ltd.
    Inventors: Ryutaro Oke, Keiichirou Ashizawa, Hiroaki Iwato
  • Publication number: 20160140927
    Abstract: In a liquid crystal display device, in a first half of one horizontal scanning period, a first data line driver circuit outputs a corrected grayscale voltage obtained by correcting an input grayscale voltage corresponding to input display data to a plurality of data lines, and a second data line driver circuit is electrically disconnected from the plurality of data lines, and in a second half of one horizontal scanning period, the second data line driver circuit outputs an input grayscale voltage corresponding to the input display data to the plurality of data lines, and the first data line driver circuit is electrically disconnected from the plurality of data lines.
    Type: Application
    Filed: November 17, 2014
    Publication date: May 19, 2016
    Inventors: Junichi MARUYAMA, Ryutaro OKE
  • Publication number: 20160062203
    Abstract: A liquid crystal display device includes a plurality of pixel regions. Each of the pixel regions includes a thin-film transistor, a transparent conductive pixel electrode connected to the thin-film transistor, a first common electrode, a first insulating film disposed between the pixel electrode and the first common electrode, a second insulating film, a second common electrode that includes a plurality of slits, and a third insulating film. A space between two closely adjacent boundaries of a pair of pixel electrodes that are adjacent to each other in a longitudinal direction of the plurality of gate lines overlaps the first common electrode and the second common electrode in a plan view.
    Type: Application
    Filed: October 30, 2015
    Publication date: March 3, 2016
    Inventors: Kikuo ONO, Daisuke KAJITA, Ryutaro OKE
  • Patent number: 9251749
    Abstract: In the case where the gray-scale value of the pixel X is the minimum gray-scale value, the data line driving circuit (4) outputs a video signal having a voltage obtained by correcting the positive polarity minimum gray-scale voltage corresponding to the minimum gray-scale value only when outputting a positive polarity video signal. In the above, the data line driving circuit (4) outputs the video signal having the voltage obtained by correcting the positive polarity minimum gray-scale voltage, using a voltage correction amount larger than that which is used in outputting the video signal having the voltage obtained by correcting the positive polarity gray-scale voltage corresponding to the intermediate gray-scale value.
    Type: Grant
    Filed: February 10, 2012
    Date of Patent: February 2, 2016
    Assignee: Panasonic Liquid Crystal Display Co., Ltd.
    Inventors: Junichi Maruyama, Ryutaro Oke, Yoshihisa Ooishi
  • Patent number: 9052559
    Abstract: The present invention is intended to control the color temperature of white exhibited by a liquid crystal display device. White is produced when light waves emitted through pixels associated with three colors of red, green, and blue have maximum intensities. The amounts of light emitted through the respective pixels are controlled by differentiating the shapes of the pixel electrodes disposed at the respective pixels from one another. Thus, the color temperature of white is controlled. Otherwise, the shapes of interceptive films disposed at the respective pixels are differentiated from one another in order to control light waves emitted through the respective pixels. Thus, the color temperature of white is controlled. The interceptive film may be shaped like the pixel electrode. Otherwise, the interceptive film may be realized with an interceptive pattern other than that of the pixel electrode or one of openings bored in a black matrix.
    Type: Grant
    Filed: April 3, 2013
    Date of Patent: June 9, 2015
    Assignees: Japan Display Inc., Panasonic Liquid Crystal Display Co., Ltd.
    Inventors: Ikuko Mori, Munenori Motooka, Ryutaro Oke, Kazunori Ojima, Kikuo Ono
  • Patent number: 9030632
    Abstract: Provided is a liquid crystal display device in which a source line is divided in a screen and the screen is driven in a horizontally divided state. A divided position (40) between a source line (30u) in an upper display region and a source line (30d) in a lower display region is arranged at an intersecting part between a source line (30) and a gate line (32). A part of the source line (30), which overlaps with a gate line (32a) on which the divided position 40 is present, has a planar shape additionally including an expanded part (46) (protruding portion) having the same area as a removed part of the source line (30) at the divided position (40), as compared to a part of the source line (30), which overlaps with a gate line (32b) on which the divided position (40) is absent.
    Type: Grant
    Filed: November 3, 2014
    Date of Patent: May 12, 2015
    Assignee: Panasonic Liquid Crystal Display Co., Ltd.
    Inventor: Ryutaro Oke
  • Publication number: 20150116618
    Abstract: A first substrate of a display device includes a plurality of signal lines which are arranged in an image display area and a plurality of driving circuits which drive the plurality of signal lines, the driving circuit is electrically connected to a metal line which is formed in the first substrate in an area of the first substrate overlapping the driving circuit in planar view, the metal line is electrically connected via a contact hole, in the area, to a lead-out line which is formed in a layer different from that of the metal line in the first substrate, the lead-out line is extended to the outside of the area and electrically connected to the signal line.
    Type: Application
    Filed: February 26, 2014
    Publication date: April 30, 2015
    Applicant: Panasonic Liquid Crystal Display Co., Ltd.
    Inventors: Kazuo KITA, Ryutaro OKE, Genshiro KAWACHI
  • Publication number: 20150109357
    Abstract: A display device includes a divided display region that includes pixels and gate drivers each configured to scan gate lines included in the divided display region. The display device also includes source drivers each configured to output, for each of groups of data lines, a video signal based on a grayscale signal in order from a corresponding gate driver side based on each delay amount set in advance and a register unit configured to store the each delay amount. The register unit stores the each delay amount so that, when at least one gate driver scans in a first order from an edge of the divided display region toward a center, the video signal corresponding to the pixels positioned on a centermost side of the display region is output to the pixels, in a period including a part of a vertical flyback period of after one frame period has finished.
    Type: Application
    Filed: January 7, 2015
    Publication date: April 23, 2015
    Inventors: Takashi NAKAI, Ryutaro OKE, Toshiki ONISHI, Junichi MARUYAMA
  • Patent number: 9013517
    Abstract: Provided is a liquid crystal display device, including: a data line; a plurality of pixel circuits; an output grayscale value generating circuit for outputting an output grayscale value obtained by correcting a display grayscale value indicating a grayscale potential having one of positive polarity and negative polarity; and a data-line driving circuit for selectively outputting an output potential having one of positive polarity and negative polarity corresponding to the output grayscale value to the data line. The data-line driving circuit outputs the potential so that the positive-polarity output potential corresponding to a smallest output grayscale value becomes lower than a positive-polarity grayscale potential indicated by a smallest one of the display grayscale values and that the negative-polarity output potential corresponding to the smallest output grayscale value becomes higher than a negative-polarity grayscale potential indicated by the smallest one of the display grayscale values.
    Type: Grant
    Filed: March 8, 2012
    Date of Patent: April 21, 2015
    Assignee: Panasonic Liquid Crystal Display Co., Ltd.
    Inventors: Goki Toshima, Yoshihisa Ooishi, Ryutaro Oke, Junichi Maruyama