Patents by Inventor Kazuhiro Nishiyama

Kazuhiro Nishiyama 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: 20180095593
    Abstract: A display device is configured that the common electrode wiring layer is divided in a source wiring layer direction, the metal wiring layer is disposed above the source wiring layer at a position in contact with the upper part of the common electrode wiring layer, and the metal wiring layer is not disposed at a position where the common electrode wiring layer is divided. Alternatively, the metal wiring layer is not disposed at a position between the same colors as those at the division position of the common electrode wiring layer.
    Type: Application
    Filed: December 5, 2017
    Publication date: April 5, 2018
    Inventors: Shigesumi Araki, Mitsutaka Okita, Kazuhiro Nishiyama, Yoshitoshi Kida, Koji Ishizaki, Kohei Azumi, Hiroshi Mizuhashi
  • Patent number: 9870092
    Abstract: A display device is configured that the common electrode wiring layer is divided in a source wiring layer direction, the metal wiring layer is disposed above the source wiring layer at a position in contact with the upper part of the common electrode wiring layer, and the metal wiring layer is not disposed at a position where the common electrode wiring layer is divided. Alternatively, the metal wiring layer is not disposed at a position between the same colors as those at the division position of the common electrode wiring layer.
    Type: Grant
    Filed: December 21, 2016
    Date of Patent: January 16, 2018
    Assignee: Japan Display Inc.
    Inventors: Shigesumi Araki, Mitsutaka Okita, Kazuhiro Nishiyama, Yoshitoshi Kida, Koji Ishizaki, Kohei Azumi, Hiroshi Mizuhashi
  • Patent number: 9857638
    Abstract: A display device includes a scanning line extending in a first direction and a scanning line extending in a second direction. The signal line extends in a zigzag manner in the second direction by running tilted at a first predetermined angle with respect to the second direction for every plurality of pixels and running tilted at a second predetermined angle with respect to the second direction for every plurality of pixels.
    Type: Grant
    Filed: December 31, 2015
    Date of Patent: January 2, 2018
    Assignee: Japan Display Inc.
    Inventors: Shigesumi Araki, Mitsutaka Okita, Kazuhiro Nishiyama
  • Patent number: 9842555
    Abstract: According to one embodiment, a lateral electric-field type of liquid crystal display device includes a display panel and a controller, wherein a frame frequency falls within a range of 1 Hz to 10 Hz, an off-leak current of each of the TFTs has a value of 1×10?15 A or less, a resistivity of a liquid crystal and a resistivity of an alignment film both fall within one of a first range and a second range, the first range being 1×1013 to 5×1013 ?·cm, the second range being 5×1013 to 5×1014 ?·cm, and a relationship of “R1× C1?R2×C2” is satisfied, where R1 is a resistance and C1 is a capacity with respect to each pixel, R2 is a resistance and C2 is a capacity with respect to each pixel.
    Type: Grant
    Filed: July 7, 2016
    Date of Patent: December 12, 2017
    Assignee: Japan Display Inc.
    Inventors: Daiichi Suzuki, Yukio Tanaka, Kenji Nakao, Kazuhiro Nishiyama, Shinichi Komura, Shinichiro Oka, Mika Oiwa
  • Publication number: 20170274677
    Abstract: A printing device includes a printing unit, a pair of transporting rollers (a pair of rollers) that is disposed right before the printing unit and that transport a medium to the printing unit, and a transportation direction changing mechanism that is disposed on an upstream side of the pair of transporting rollers and that changes a transportation direction of the medium before the medium is nipped by the pair of transporting rollers. The transportation direction changing mechanism changes a transportation direction of a following medium such that a leading end portion of the following medium overlaps a preceding medium when the printing unit performs printing in a state where the preceding medium is nipped by the pair of transporting rollers.
    Type: Application
    Filed: March 8, 2017
    Publication date: September 28, 2017
    Inventors: Tetsuji YATSUNAMI, Takashi MATSUKI, Kazuhiro NISHIYAMA
  • Patent number: 9684198
    Abstract: According to one embodiment, a liquid crystal display device includes an array substrate, an opposed substrate and a liquid crystal layer. The array substrate includes a first line, a second line, a light shielding pattern, a first pixel electrode, and a second pixel electrode. The opposed substrate includes a light shielding layer, a first colored layer, and a second colored layer.
    Type: Grant
    Filed: December 23, 2013
    Date of Patent: June 20, 2017
    Assignee: Japan Display Inc.
    Inventors: Mitsutaka Okita, Kazuhiro Nishiyama
  • Patent number: 9682561
    Abstract: A recording apparatus includes: a carriage that has a housing in which a recording head is provided; a guide member that guides the carriage; a gap adjusting unit that adjust a gap between the medium and the recording head; and a cap member by which the recording head is capped. The gap adjusting unit includes a sliding member that slides over the guide member, a cam member that is interposed between a part of the housing and the sliding member and has a shape with which the housing is caused to shift in the direction in which the gap is changed, by moving in the first direction relative to the housing and the sliding member, and a pressing member that presses the cam member to the housing of the carriage in a second direction intersecting with the first direction and the direction in which the gap is changed.
    Type: Grant
    Filed: October 2, 2015
    Date of Patent: June 20, 2017
    Assignee: Seiko Epson Corporation
    Inventors: Kazutoshi Matsuzaki, Kazuhiro Nishiyama, Tetsuji Yatsunami
  • Patent number: 9632621
    Abstract: A display device is configured that the common electrode wiring layer is divided in a source wiring layer direction, the metal wiring layer is disposed above the source wiring layer at a position in contact with the upper part of the common electrode wiring layer, and the metal wiring layer is not disposed at a position where the common electrode wiring layer is divided. Alternatively, the metal wiring layer is not disposed at a position between the same colors as those at the division position of the common electrode wiring layer.
    Type: Grant
    Filed: May 12, 2016
    Date of Patent: April 25, 2017
    Assignee: Japan Display Inc.
    Inventors: Shigesumi Araki, Mitsutaka Okita, Kazuhiro Nishiyama, Yoshitoshi Kida, Koji Ishizaki, Kohei Azumi, Hiroshi Mizuhashi
  • Publication number: 20170102600
    Abstract: A display device is configured that the common electrode wiring layer is divided in a source wiring layer direction, the metal wiring layer is disposed above the source wiring layer at a position in contact with the upper part of the common electrode wiring layer, and the metal wiring layer is not disposed at a position where the common electrode wiring layer is divided. Alternatively, the metal wiring layer is not disposed at a position between the same colors as those at the division position of the common electrode wiring layer.
    Type: Application
    Filed: December 21, 2016
    Publication date: April 13, 2017
    Inventors: Shigesumi ARAKI, Mitsutaka OKITA, Kazuhiro NISHIYAMA, Yoshitoshi KIDA, Koji ISHIZAKI, Kohei AZUMI, Hiroshi MIZUHASHI
  • Patent number: 9601071
    Abstract: According to one embodiment, a lateral electric-field type of liquid crystal display device includes a display panel and a controller, wherein a frame frequency falls within a range of 1 Hz to 10 Hz, an off-leak current of each of the TFTs has a value of 1×10?15 A or less, a resistivity of a liquid crystal and a resistivity of an alignment film both fall within one of a first range and a second range, the first range being 1×1013 to 5×1013 ?·cm, the second range being 5×1013 to 5×1014 ?·cm, and a relationship of “R1×C1?R2×C2” is satisfied, where R1 is a resistance and C1 is a capacity with respect to each pixel, R2 is a resistance and C2 is a capacity with respect to each pixel.
    Type: Grant
    Filed: October 9, 2014
    Date of Patent: March 21, 2017
    Assignee: Japan Display Inc.
    Inventors: Daiichi Suzuki, Yukio Tanaka, Kenji Nakao, Kazuhiro Nishiyama, Shinichi Komura, Shinichiro Oka, Mika Oiwa
  • Patent number: 9552784
    Abstract: According to one embodiment, a lateral electric-field type of liquid crystal display device includes a display panel including a plurality of liquid crystal pixels arranged in a matrix, and a controller configured to perform intermittent driving to rewrite an image signal to the liquid crystal pixels, wherein a frame frequency falls within a range of 10 Hz to 20 Hz, and an absolute value of a flexo coefficient (e11, e33) of a liquid crystal applied to the liquid crystal pixels is 1.6 pC/m or less.
    Type: Grant
    Filed: August 1, 2014
    Date of Patent: January 24, 2017
    Assignee: Japan Display Inc.
    Inventors: Daiichi Suzuki, Yukio Tanaka, Kenji Nakao, Kazuhiro Nishiyama, Shinichi Komura, Shinichiro Oka, Mika Oiwa
  • Publication number: 20170004793
    Abstract: According to one embodiment, a lateral electric-field type of liquid crystal display device includes a display panel and a controller, wherein a frame frequency falls within a range of 1 Hz to 10 Hz, an off-leak current of each of the TFTs has a value of 1×10?15 A or less, a resistivity of a liquid crystal and a resistivity of an alignment film both fall within one of a first range and a second range, the first range being 1×1013 to 5×1013 ?·cm, the second range being 5×1013 to 5×1014 ?·cm, and a relationship of “R1× C1?R2×C2” is satisfied, where R1 is a resistance and C1 is a capacity with respect to each pixel, R2 is a resistance and C2 is a capacity with respect to each pixel.
    Type: Application
    Filed: July 7, 2016
    Publication date: January 5, 2017
    Applicant: Japan Display Inc.
    Inventors: Daiichi SUZUKI, Yukio TANAKA, Kenji NAKAO, Kazuhiro NISHIYAMA, Shinichi KOMURA, Shinichiro OKA, Mika OIWA
  • Patent number: 9495900
    Abstract: When normal driving is switched to intermittent driving simultaneously with switching from a video image to a still image, a flicker may occur due to a response delay caused by dielectric anisotropy of liquid crystal. A display device has a first mode (video image driving) in which driving is performed at a first frame frequency and a second mode (still image driving) in which the driving is performed at a second frame frequency lower than the first frame frequency. When the first mode is switched to the second mode, the display device first performs the driving at a frame frequency higher than the second frame frequency for at least one frame and then, the driving is switched to be performed at the second frame frequency.
    Type: Grant
    Filed: September 4, 2014
    Date of Patent: November 15, 2016
    Assignee: Japan Display Inc.
    Inventors: Yukio Tanaka, Daiichi Suzuki, Kazuhiro Nishiyama
  • Patent number: 9482895
    Abstract: According to one embodiment, a liquid crystal display device includes array substrate, counter substrate and liquid crystal layer. The array substrate includes a plurality of pixel electrodes, a plurality of gate lines, a plurality of source lines, a plurality of switching elements, a gate driver, and a source driver. The counter substrate includes a color filter. In each frame period, gradation signals of given polarity are applied to a plurality of pixel electrodes facing the transparent filter, while gradation signals of the reverse polarity are applied to a plurality of pixel electrodes facing the green filter.
    Type: Grant
    Filed: June 6, 2014
    Date of Patent: November 1, 2016
    Assignee: Japan Display Inc.
    Inventors: Mitsutaka Okita, Kazuhiro Nishiyama
  • Publication number: 20160282647
    Abstract: According to one embodiment, a liquid crystal display device includes a first substrate, a second substrate, a liquid crystal layer, a first alignment film, and a sealant, wherein the first alignment film is an optical alignment film, the sealant includes an epoxy resin not having an acrylate skeleton and a resin having an acrylate skeleton, a storage elastic modulus of the sealant is greater than or equal to 1.0×107 Pa and less than or equal to 1.5×109 Pa, and at least a part of the sealant is in contact with the first alignment film.
    Type: Application
    Filed: March 21, 2016
    Publication date: September 29, 2016
    Applicant: Japan Display Inc.
    Inventors: Noboru KUNIMATSU, Toshiyuki HIGANO, Midori TSUKANE, Kazuhiro NISHIYAMA
  • Publication number: 20160259476
    Abstract: A display device is configured that the common electrode wiring layer is divided in a source wiring layer direction, the metal wiring layer is disposed above the source wiring layer at a position in contact with the upper part of the common electrode wiring layer, and the metal wiring layer is not disposed at a position where the common electrode wiring layer is divided. Alternatively, the metal wiring layer is not disposed at a position between the same colors as those at the division position of the common electrode wiring layer.
    Type: Application
    Filed: May 12, 2016
    Publication date: September 8, 2016
    Inventors: Shigesumi ARAKI, Mitsutaka Okita, Kazuhiro Nishiyama, Yoshitoshi Kida, Koji Ishizaki, Kohei Azumi, Hiroshi Mizuhashi
  • Patent number: 9400409
    Abstract: According to one embodiment, a display includes a first substrate including a scan line, a signal line, a pixel electrode including first electrodes extending substantially parallel to the signal line, a common electrode including second electrodes extending parallel to the first electrode between the first electrodes and arranged with a predetermined space between each second electrode and the adjacent first electrode, and a shielding portion at least arranged between the signal line and the first electrode arranged near the signal line, a second substrate including a light shielding layer having a width identical to a width of the shielding portion and arranged opposite the signal line, in a direction substantially orthogonal to the signal line, and a liquid crystal layer.
    Type: Grant
    Filed: November 6, 2012
    Date of Patent: July 26, 2016
    Assignee: Japan Display Inc.
    Inventors: Shigesumi Araki, Norihisa Maeda, Tatsuya Wakimoto, Kazuhiro Nishiyama
  • Publication number: 20160209706
    Abstract: There is provided a display device that can improve the use efficiency of light from a light source and achieve low power consumption with a simple configuration even in the case in which no color filter is used. A display device includes a substrate having a display region and a TFT disposed on the display region, wavelength conversion layers each including a columnar quantum rod and disposed on a region corresponding to the display region, and a light source that excites the quantum rods.
    Type: Application
    Filed: December 31, 2015
    Publication date: July 21, 2016
    Inventors: Hirohisa Miki, Shigesumi Araki, Kazuhiro Nishiyama
  • Publication number: 20160195782
    Abstract: A display device includes a scanning line extending in a first direction and a scanning line extending in a second direction. The signal line extends in a zigzag manner in the second direction by running tilted at a first predetermined angle with respect to the second direction for every plurality of pixels and running tilted at a second predetermined angle with respect to the second direction for every plurality of pixels.
    Type: Application
    Filed: December 31, 2015
    Publication date: July 7, 2016
    Inventors: Shiegesumi ARAKI, Mitsutaka OKITA, Kazuhiro NISHIYAMA
  • Patent number: 9367165
    Abstract: A display device is configured that the common electrode wiring layer is divided in a source wiring layer direction, the metal wiring layer is disposed above the source wiring layer at a position in contact with the upper part of the common electrode wiring layer, and the metal wiring layer is not disposed at a position where the common electrode wiring layer is divided. Alternatively, the metal wiring layer is not disposed at a position between the same colors as those at the division position of the common electrode wiring layer.
    Type: Grant
    Filed: October 7, 2014
    Date of Patent: June 14, 2016
    Assignee: Japan Display Inc.
    Inventors: Shigesumi Araki, Mitsutaka Okita, Kazuhiro Nishiyama, Yoshitoshi Kida, Koji Ishizaki, Kohei Azumi, Hiroshi Mizuhashi