Patents by Inventor Seiji Kawaguchi

Seiji Kawaguchi 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: 20240121999
    Abstract: A multilayer body for an image display device includes a wiring substrate including a substrate having transparency, and a mesh wiring layer disposed on the substrate; and a dielectric layer stacked on the wiring substrate. The dielectric layer and the substrate have a total thickness of 50 ?m or more and 500 ?m or less.
    Type: Application
    Filed: April 4, 2022
    Publication date: April 11, 2024
    Applicant: DAI NIPPON PRINTING CO., LTD.
    Inventors: Keita IIMURA, Shuji KAWAGUCHI, Kazuki KINOSHITA, Hidetoshi IIOKA, Seiji TAKE
  • Patent number: 9818324
    Abstract: Provided is a display system, including: a display device configured to display an image; and a transmission device configured to simultaneously transmit, to the display device, first image data of a first frame and second image data of a second frame that is one frame before the first frame, the display device including: an overdrive processing unit configured to receive the first image data and the second image data transmitted from the transmission device, and to execute overdrive processing on the first image data based on the received first image data and the received second image data, to thereby generate display data; and a display panel configured to display an image based on the display data generated by the overdrive processing unit.
    Type: Grant
    Filed: March 7, 2016
    Date of Patent: November 14, 2017
    Assignee: Panasonic Liquid Crystal Display Co., Ltd.
    Inventors: Seiji Kawaguchi, Tatsuo Itoman
  • Publication number: 20170256189
    Abstract: Provided is a display system, including: a display device configured to display an image; and a transmission device configured to simultaneously transmit, to the display device, first image data of a first frame and second image data of a second frame that is one frame before the first frame, the display device including: an overdrive processing unit configured to receive the first image data and the second image data transmitted from the transmission device, and to execute overdrive processing on the first image data based on the received first image data and the received second image data, to thereby generate display data; and a display panel configured to display an image based on the display data generated by the overdrive processing unit.
    Type: Application
    Filed: March 7, 2016
    Publication date: September 7, 2017
    Inventors: Seiji KAWAGUCHI, Tatsuo ITOMAN
  • Patent number: 9214120
    Abstract: A controller in an intermediate inversion drive mode causes a source driver to alternate polarities of voltages applied to pixel electrodes connected to one of source signal lines per plural gate signal lines, and to apply the voltages so that a pair of the pixel electrodes, which are connected to one of the gate signal lines and to source signal lines adjacent to each other, are subjected to different voltage application in polarity from each other, the source driver alternating polarities of the voltages applied to the respective pixel electrodes for each frame. When the source driver, in the intermediate inversion drive mode, applies the voltages sequentially to the pixel electrodes connected to one of the source signal lines, the controller sets a longer voltage application period for the inverted electrode than for the equivalent electrode.
    Type: Grant
    Filed: September 11, 2013
    Date of Patent: December 15, 2015
    Assignee: PANASONIC LIQUID CRYSTAL DISPLAY CO., LTD.
    Inventors: Hideyuki Nakanishi, Seiji Kawaguchi
  • Patent number: 9190002
    Abstract: A display device includes a display portion, a source driver that is connected to a second end of a source signal line to output to the source signal line a first source signal for a first pixel electrode and a second source signal for a second pixel electrode, a gate driver that outputs first and second gate signals to first and second gate signal lines, and a controller that controls the gate driver and the source driver to control output timings of the first and second gate signals relative to output timings of the first and second source signals. The controller sets a first time interval from the output timing of the first source signal to the output timing of the first gate signal to be longer than a second time interval from the output timing of the second source signal to the output timing of the second gate signal.
    Type: Grant
    Filed: September 18, 2013
    Date of Patent: November 17, 2015
    Assignee: PANASONIC LIQUID CRYSTAL DISPLAY CO., LTD.
    Inventor: Seiji Kawaguchi
  • Publication number: 20140290599
    Abstract: An active grille shutter controls opening and closing of a variable duct device which uses movable louvers to open and close an opening provided at the front end of a vehicle to introduce moving air. The active grille shutter includes: thermal load state detection units each configured to detect a thermal load state of the vehicle; and an opening and closing control unit configured to set the variable duct device in a closed state in a normal condition, and to set the variable duct device in an open state when it is determined that the thermal load state of the vehicle is a predetermined high thermal load state.
    Type: Application
    Filed: March 26, 2014
    Publication date: October 2, 2014
    Applicant: Fuji Jukogyo Kabushiki Kaisha
    Inventors: Keishi Numata, Seiji Kawaguchi, Gentaro Hatanaka, Kazuhiro Hayakawa, Eiji Fujii, Hirotake Nishina, Shinji Fukushima
  • Publication number: 20140085175
    Abstract: A display device includes a display portion, a source driver that is connected to a second end of a source signal line to output to the source signal line a first source signal for a first pixel electrode and a second source signal for a second pixel electrode, a gate driver that outputs first and second gate signals to first and second gate signal lines, and a controller that controls the gate driver and the source driver to control output timings of the first and second gate signals relative to output timings of the first and second source signals. The controller sets a first time interval from the output timing of the first source signal to the output timing of the first gate signal to be longer than a second time interval from the output timing of the second source signal to the output timing of the second gate signal.
    Type: Application
    Filed: September 18, 2013
    Publication date: March 27, 2014
    Applicant: Panasonic Liquid Crystal Display Co., Ltd.
    Inventor: Seiji KAWAGUCHI
  • Publication number: 20140071105
    Abstract: A controller in an intermediate inversion drive mode causes a source driver to alternate polarities of voltages applied to pixel electrodes connected to one of source signal lines per plural gate signal lines, and to apply the voltages so that a pair of the pixel electrodes, which are connected to one of the gate signal lines and to source signal lines adjacent to each other, are subjected to different voltage application in polarity from each other, the source driver alternating polarities of the voltages applied to the respective pixel electrodes for each frame. When the source driver, in the intermediate inversion drive mode, applies the voltages sequentially to the pixel electrodes connected to one of the source signal lines, the controller sets a longer voltage application period for the inverted electrode than for the equivalent electrode.
    Type: Application
    Filed: September 11, 2013
    Publication date: March 13, 2014
    Applicant: PANASONIC LIQUID CRYSTAL DISPLAY CO., LTD.
    Inventors: Hideyuki NAKANISHI, Seiji KAWAGUCHI
  • Patent number: 8130187
    Abstract: A liquid crystal display comprises: a liquid crystal layer capable of bend orientation; a display screen on which an image is displayed by light transmitted through a bend-oriented liquid crystal layer; and liquid crystal voltage application means for applying a liquid crystal voltage to the liquid crystal layer according to luminance information for each field of image information composed of serial fields, the liquid crystal voltage being applied to cause transmittance of the light to change, thereby sequentially displaying the image corresponding to the fields of the image information, and when the luminance information changes between current and subsequent fields, the liquid crystal voltage application means applies the liquid crystal voltage which changes so as to have a value according to the luminance information by the time the liquid crystal voltage is applied for the subsequent field.
    Type: Grant
    Filed: July 18, 2001
    Date of Patent: March 6, 2012
    Assignee: Toshiba Matsushita Display Technology Co., Ltd.
    Inventors: Kenji Nakao, Tsuyoshi Uemura, Seiji Kawaguchi, Junichi Kobayashi
  • Patent number: 7864155
    Abstract: A display control circuit includes a vertical timing control circuit that generates first and second start signals, a panel driving unit that sequentially drives a plurality of OCB liquid crystal pixels in units of one row under the control of the first start signal to hold pixel voltages for gradation display in the pixels PX of the driven row, and that sequentially drives the pixels in units of at least one row under the control of the second start signal to hold pixel voltages for black insertion in the pixels of the driven row, and a light source driving unit that drives a plurality of backlight sources arranged substantially in parallel to the rows of pixels. In particular, the light source driving unit is configured to start, in synchronism with the first start signal, an operation for sequentially blinking the backlight sources with a predetermined duty ratio.
    Type: Grant
    Filed: September 13, 2005
    Date of Patent: January 4, 2011
    Assignee: Toshiba Matsushita Display Technology Co., Ltd.
    Inventor: Seiji Kawaguchi
  • Publication number: 20100327413
    Abstract: A method for opening a carbon-based hardmask layer formed on an etch layer over a substrate is provided. The hardmask layer is disposed below a patterned mask. The substrate is placed in a plasma processing chamber. The hardmask layer is opened by flowing a hardmask opening gas including a COS component into the plasma chamber, forming a plasma from the hardmask opening gas, and stopping the flow of the hardmask opening gas. The hardmask layer may be made of amorphous carbon, or made of spun-on carbon, and the hardmask opening gas may further include O2.
    Type: Application
    Filed: May 2, 2008
    Publication date: December 30, 2010
    Applicant: LAM RESEARCH CORPORATION
    Inventors: Jong Pil Lee, Seiji Kawaguchi, Camelia Rusu, Zhisong Huang, Mukund Srinivasan, Eric Hudson, Aaron Eppler
  • Patent number: 7714819
    Abstract: A liquid-crystal-panel drive and driving method capable of preventing unevenness on a display face from occurring after turning off a power supply in a liquid crystal display apparatus using OCB mode liquid crystal. The liquid crystal display apparatus includes a liquid crystal layer using OCB mode liquid crystal, a driver applying a voltage to the liquid crystal layer, a liquid-crystal driving power supply supplying power to the driver, and a switch outputting an on/off signal to the driver. When the switch outputs an off signal, the driver applies a predetermined voltage that can be applied to each pixel of the liquid crystal layer for a predetermined time, and after the elapse of the predetermined time, stops the supply of power to the driver from the liquid-crystal driving power supply.
    Type: Grant
    Filed: January 7, 2004
    Date of Patent: May 11, 2010
    Assignee: Toshiba Matsushita Display Technology Co., Ltd.
    Inventors: Seiji Kawaguchi, Kenji Nakao
  • Patent number: 7602367
    Abstract: A flat display panel comprises a matrix array of pixels that displays an image, a controller that receives a video signal supplied externally along with a horizontal sync signal defining a horizontal scanning period and a vertical sync signal defining a vertical scanning period, a driver circuit that is controlled by the controller and writes the video signal and non-video signal into each row of pixels in each vertical scanning period, and an insertion timing setting section that controls a write timing of the non-video signal to synchronize with a write timing of the video signal. The insertion timing setting section is configured to count the number of horizontal sync signals supplied within the vertical scanning period defined by each vertical sync signal, and then determine the write timing of the non-video signal based on a result of counting.
    Type: Grant
    Filed: June 6, 2005
    Date of Patent: October 13, 2009
    Assignee: Toshiba Matsushita Display Technology Co., Ltd.
    Inventor: Seiji Kawaguchi
  • Publication number: 20090073106
    Abstract: In a liquid crystal display apparatus of an OCB type, a frame inversion drive is carried out to invert the polarities of a white level voltage and a black level voltage in conformity with the polarity of an opposed voltage on the frame-to-frame basis, so that the amplitudes of the black level voltage and the white level voltage decrease with rise in environmental temperature.
    Type: Application
    Filed: September 12, 2008
    Publication date: March 19, 2009
    Applicant: Toshiba Matsushita Display Technology Co., Ltd
    Inventor: Seiji KAWAGUCHI
  • Publication number: 20090015536
    Abstract: A display area in a liquid crystal display apparatus is divided into five blocks extending in the lateral direction, is controlled to have a black writing period, a video writing period and a video holding period in each block in this order, and is controlled to delay the video writing period of the kth block in comparison with the video writing period in the (k?1)th block by a predetermined time period.
    Type: Application
    Filed: July 2, 2008
    Publication date: January 15, 2009
    Applicant: Toshiba Matsushita Display Technology Co., Ltd.
    Inventors: Masahiko Takeoka, Seiji Kawaguchi
  • Publication number: 20090002310
    Abstract: A liquid crystal display apparatus in an embodiment of the invention, in which each frame period is divided into a first period for writing the non-video signals, a second period for writing the video signals to the respective pixels, and a third period for maintaining the video signals in the respective pixels; and in which a control unit (1) calculates a backlight luminance value and gamma conversion values based on the distribution of the gradation values prior to the second period, (2) gamma-converts the input video signals based on the gamma conversion values and writes gamma-converted video signals into the respective pixels during the second period, (3) causes the backlight to emit light based on the backlight luminance value during the third period.
    Type: Application
    Filed: June 24, 2008
    Publication date: January 1, 2009
    Applicant: Toshiba Matsushita Display Technology Co., Ltd
    Inventors: Seiji Kawaguchi, Shigesumi Araki, Kazuhiro Nishiyama, Kenji Nakao, Ken Shiiba
  • Patent number: 7450101
    Abstract: A signal converting section increases a transfer rate of an input image signal to be supplied to a liquid crystal panel and, at the same time, also inserts a non-image signal for applying a predetermined voltage to liquid-crystal cells in a space of the input image signal and supplies it as a picture-element signal to a source driver. To each picture cell, an input image signal and a non-image signal are sequentially written with positive or negative polarity. For all picture elements, after the input image signal is written, the non-image signal equal in polarity to the input image signal is always written. Furthermore, after the non-image signal is written, an image signal opposite in polarity to the non-image signal is always written. Thus, when an image is displayed on the liquid crystal panel in OCB mode, it is possible to prevent the occurrence of back transition and carry out image display evenly.
    Type: Grant
    Filed: November 23, 2005
    Date of Patent: November 11, 2008
    Assignee: Panasonic Corporation
    Inventors: Katsuyuki Arimoto, Yoshihito Ohta, Takahiro Kobayashi, Taro Funamoto, Yoshinori Kobayashi, Kenji Nakao, Seiji Kawaguchi
  • Publication number: 20070132709
    Abstract: Occurrence of insufficient writing to a liquid crystal display element is prevented in the liquid crystal display device which causes a backlight to illuminate only while the liquid crystal display element responds to the display data.
    Type: Application
    Filed: December 11, 2006
    Publication date: June 14, 2007
    Applicant: Toshiba Matsushita Display Technology Co., Ltd
    Inventor: Seiji KAWAGUCHI
  • Patent number: D606564
    Type: Grant
    Filed: March 27, 2009
    Date of Patent: December 22, 2009
    Assignee: ShinMaywa Industries, Ltd.
    Inventors: Yasuyuki Nishi, Seiji Kawaguchi, Satoshi Mashita, Kazuki Takeuchi, Nobukazu Tanaka, Akihiro Ando, Yasuhide Okazaki, Junya Enomoto, Arata Funasaka, Terumasa Okizoe
  • Patent number: D607472
    Type: Grant
    Filed: March 27, 2009
    Date of Patent: January 5, 2010
    Assignee: ShinMaywa Industries, Ltd.
    Inventors: Yasuyuki Nishi, Seiji Kawaguchi, Satoshi Mashita, Kazuki Takeuchi, Nobukazu Tanaka, Akihiro Ando, Yasuhide Okazaki, Junya Enomoto, Arata Funasaka, Terumasa Okizoe