Patents by Inventor Yuhko Hisada

Yuhko Hisada 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: 20150301415
    Abstract: A liquid crystal display device (1) includes: a first substrate (101); and a second substrate (102), the first substrate and the second substrate being disposed in opposition to one another, wherein, on an opposing surface between the first substrate (101) and the second substrate (102), a pixel electrode (157), a common electrode (155), a shift register (130), a clock signal line (131, 132), and a power supply line (133) are provided, at the first substrate (101), a shield electrode (a first shield electrode part (135) and a second shield electrode part (136)) is provided above the shift register (130) and the power supply line (133), and the shield electrode is not provided above the clock signal line (131, 132).
    Type: Application
    Filed: October 22, 2013
    Publication date: October 22, 2015
    Inventors: Hironobu SAWADA, Yuhko HISADA, Satoshi MURATA, Takehito MORI, Ryusuke ASAI, Tetsuya FUJIKAWA
  • Patent number: 9036121
    Abstract: Picture element electrodes (7) are electrically connected with drain electrodes (18D) of respective transistor elements (18). The picture element electrodes (7) and data signal lines (SLn, SLn+1, . . . ) are provided above scanning signal lines (GLn, GLn+1, . . . ). The picture element electrodes (7) overlap scanning signal lines (GLn, GLn+1, . . . ) when viewed from above. Notch parts 7a and 7b are provided in each picture element electrode (7) so as to overlap each of the scanning signal lines (GLn, GLn+1, . . . ). Shield electrodes (4a, 4b) are formed in the same layer as the data signal lines (SLn, SLn+1, . . . ). Each of the scanning signal lines (GLn, GLn+1, . . . ) at least partially overlaps the shield electrodes (4a, 4b) in the notch parts (7a, 7b), when viewed from above. This provides the liquid crystal display panel having wide viewing angle characteristic and carrying out high quality display.
    Type: Grant
    Filed: February 18, 2011
    Date of Patent: May 19, 2015
    Assignee: UNIFIED INNOVATIVE TECHNOLOGY, LLC
    Inventors: Ryohki Itoh, Yuhko Hisada, Satoshi Horiuchi, Takaharu Yamada, Masahiro Yoshida
  • Patent number: 9001294
    Abstract: A liquid crystal display panel includes a color filter substrate with four or more color layers of different colors and a light shielding layer, each pixel including a repeating unit composed of the four or more color layers overlap overlapping the light shielding layer, the liquid crystal display panel having a region where color layers of the same color in different pixels are arranged in the same rows or the same columns, and a color layer of a color with higher brightness overlaps a portion of the light shielding layer positioned between the color layer and another color layer of the same color with an overlapping width smaller than that with which a color layer of a color with lower brightness overlaps a portion of the light shielding layer positioned between the color layer and another color layer of the same color.
    Type: Grant
    Filed: November 1, 2011
    Date of Patent: April 7, 2015
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Ryohki Itoh, Yuhko Hisada, Junichi Morinaga, Hironobu Sawada, Katsushige Asada
  • Publication number: 20140192308
    Abstract: The present invention provides a liquid crystal display that suppresses defects caused by variation in process and improves display performance.
    Type: Application
    Filed: August 3, 2012
    Publication date: July 10, 2014
    Applicant: SHARP KABUSHIKI KAISHA
    Inventors: Tomoo Furukawa, Yuhko Hisada, Katsushige Asada
  • Publication number: 20140176891
    Abstract: The present invention provides a liquid crystal display panel which facilitates laser repair for repairing defects even if an electrode facing a pixel electrode with an insulating film therebetween is a transparent electrode. The liquid crystal display panel of the present invention includes a first substrate having an insulating substrate, a thin film transistor, a scan signal line, a first light-shielding electrode, a first insulating film, a second light-shielding electrode, a second insulating film, a transparent electrode, a third insulating film, and a pixel electrode; a second substrate having an insulating substrate; and a liquid crystal layer sandwiched between the first substrate and the second substrate. The second light-shielding electrode is located between the thin film transistor and the pixel electrode and connected to the pixel electrode through a connecting portion formed through the second insulating film and the third insulating film.
    Type: Application
    Filed: August 3, 2012
    Publication date: June 26, 2014
    Applicant: SHARP KABUSHIKI KAISHA
    Inventors: Yuhko Hisada, Katsushige Asada, Tetsuya Fujikawa, Akihiro Shohraku, Yuki Yamashita
  • Patent number: 8736779
    Abstract: A high-quality display is achieved by suppressing a disturbance in alignment in a liquid crystal display panel including a substrate structured so that a slit in a pixel electrode intersects with a scanning signal line or an auxiliary capacitor line. An active matrix substrate (10) includes: a pixel electrode (12) having a slit; and an auxiliary capacitor line (14). In a region of intersection between the slit (15) and the auxiliary capacitor line (14) or a scanning signal line (21), at least a drain line (13) or a data signal line (22) is provided between a layer of the pixel electrode (12) and a layer of the auxiliary capacitor line (14) or of the scanning signal line (21) in such a way as to cover the auxiliary capacitor line (12) or the scanning signal line (21).
    Type: Grant
    Filed: August 7, 2009
    Date of Patent: May 27, 2014
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Satoshi Horiuchi, Takaharu Yamada, Yuhko Hisada, Ryohki Itoh
  • Patent number: 8735887
    Abstract: The present invention provides an ion sensor with which an ion concentration can be stably measured with high accuracy, and a display device. The present invention is an ion sensor that includes a field effect transistor. The ion sensor also includes an ion sensor antenna and a reset device. The ion sensor antenna and the reset device are connected to a gate electrode of the field effect transistor. The reset device is capable of controlling the potential of the gate electrode and the ion sensor antenna to a predetermined potential.
    Type: Grant
    Filed: May 18, 2011
    Date of Patent: May 27, 2014
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Atsuhito Murai, Yoshiharu Kataoka, Takuya Watanabe, Yuhko Hisada, Satoshi Horiuchi
  • Patent number: 8717268
    Abstract: A display device prevents luminance unevenness that occurs in the case of inversion driving being performed, and performs high quality image display, while selectively scanning two lines of picture elements constituting a single pixel using a single gate wiring, as in the case of multi-primary color image display.
    Type: Grant
    Filed: June 9, 2008
    Date of Patent: May 6, 2014
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Ryohki Itoh, Satoshi Horiuchi, Yuhko Hisada
  • Patent number: 8716709
    Abstract: The present invention provides an inexpensive display device that includes an ion sensor portion and a display and that can be miniaturized. The present invention is a display device that includes an ion sensor portion including an ion sensor circuit and a display including a display-driving circuit. The display device has a substrate, and at least one portion of the ion sensor circuit and at least one portion of the display-driving circuit are formed on the same main surface of the substrate.
    Type: Grant
    Filed: May 18, 2011
    Date of Patent: May 6, 2014
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Atsuhito Murai, Yoshiharu Kataoka, Takuya Watanabe, Yuhko Hisada, Satoshi Horiuchi
  • Patent number: 8681297
    Abstract: When viewed from the top of the liquid crystal display panel, a projecting section (4a) of a picture element electrode (4) is formed so as to at least partially match a contact hole (17). It is therefore possible to provide the liquid crystal display panel which achieves a high quality display and has a high aperture ratio and high transmittance.
    Type: Grant
    Filed: November 19, 2010
    Date of Patent: March 25, 2014
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Yuhko Hisada, Takaharu Yamada, Satoshi Horiuchi, Ryohki Itoh
  • Patent number: 8648889
    Abstract: In one embodiment of the present invention, in an even-numbered signal line group, the arrangement sequence of the first and second signal lines is reversed between in a display area and in a non-display area, and the same goes for the arrangement sequence of the third and fourth signal lines. The ends of the first to sixteenth signal lines in the non-display area are connected to the first to sixteenth individual drivers, respectively. An odd-numbered individual driver and an even-numbered individual driver each output a corresponding one of drive signals of opposite polarity. Thus, the polarities of subpixels of the same color arranged in a first direction D1 (horizontal direction) differ between the subpixels connected to the odd-numbered signal line group and the subpixels connected to the even-numbered signal line group. That is, all of the subpixels having the same color arranged in the horizontal direction do not have the same polarity. This helps reduce a horizontal shadow.
    Type: Grant
    Filed: June 28, 2006
    Date of Patent: February 11, 2014
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Yuhko Hisada, Ryohki Itoh, Takaharu Yamada, Hideki Morii, Takayuki Mizunaga
  • Publication number: 20130313554
    Abstract: The present invention provides an ion sensor with which an ion concentration can be stably measured with high accuracy, and a display device. The present invention is an ion sensor that includes a field effect transistor. The ion sensor also includes an ion sensor antenna and a reset device. The ion sensor antenna and the reset device are connected to a gate electrode of the field effect transistor. The reset device is capable of controlling the potential of the gate electrode and the ion sensor antenna to a predetermined potential.
    Type: Application
    Filed: May 18, 2011
    Publication date: November 28, 2013
    Inventors: Atsuhito Murai, Yoshiharu Kataoka, Takuya Watanabe, Yuhko Hisada, Satoshi Horiuchi
  • Patent number: 8593584
    Abstract: The present invention provides a liquid-crystal display device in which a pixel defect does not occur even when an electrode becomes disconnected. The liquid-crystal display device according to the present invention comprises a liquid crystal layer and a pair of substrates between which the liquid crystal layer is interposed. At least one of the pair of substrates includes an electrode that applies a voltage to the liquid crystal layer. The electrode that applies the voltage to the liquid crystal layer includes two or more linear portions. The substrate comprising the electrode that applies the voltage to the liquid crystal layer, from among the pair of substrates, includes a floating electrode that overlaps at least two of the two or more linear portions via an insulating film.
    Type: Grant
    Filed: March 11, 2010
    Date of Patent: November 26, 2013
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Ryohki Itoh, Takaharu Yamada, Yuhko Hisada, Satoshi Horiuchi
  • Patent number: 8593582
    Abstract: An active matrix substrate has a structure that prevents a drain extraction line from breaking without a plurality of active elements such as thin film transistor elements, metal-insulator-metal elements, MOS transistor elements, diodes, and varistors being disposed, and is suited for use in a large-size liquid crystal television or a like liquid crystal display device equipped with a large-size liquid crystal display panel. The active matrix substrate includes an active element connected, via a drain extraction line, to a storage capacitor upper electrode, wherein the drain extraction line has at least two routes.
    Type: Grant
    Filed: August 1, 2011
    Date of Patent: November 26, 2013
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Ryuji Kurihara, Yuhko Hisada, Toshihide Tsubata, Masanori Takeuchi, Tomokazu Ohtsubo
  • Patent number: 8582064
    Abstract: Disclosed is an MVA type liquid crystal display device (LCD 100A) forming four domains in which liquid crystal molecules fall in different directions that are about 90° apart. The MVA type liquid crystal display device includes a plurality of pixels arranged in a matrix of rows and columns, which pixels are horizontally long pixels having longer sides extending in the row direction. Each pixel includes two first electrodes (21a and 21b) arranged side by side along the row direction. Preferably, at least one of the two first electrodes (21a and 21b) has a first corner section including a first edge that is parallel to the row direction and a second edge that is parallel to the column direction, and the first substrate further includes an electrode layer (16c) overlapping at least a portion of the first edge or the second edge of the first corner section.
    Type: Grant
    Filed: December 21, 2010
    Date of Patent: November 12, 2013
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Satoshi Horiuchi, Takaharu Yamada, Yuhko Hisada, Ryohki Itoh, Masahiro Yoshida
  • Publication number: 20130240746
    Abstract: The present invention provides an ion sensor and a display device which are capable of detecting positive ions and negative ions with high precision, at low cost. The ion sensor includes: a field effect transistor; an ion sensor antenna; and a capacitor, the ion sensor antenna and one terminal of the capacitor connected to a gate electrode of the field effect transistor, the other terminal of the capacitor receiving voltage.
    Type: Application
    Filed: May 18, 2011
    Publication date: September 19, 2013
    Inventors: Atsuhito Murai, Yoshiharu Kataoka, Takuya Watanabe, Yuhko Hisada, Satoshi Horiuchi
  • Publication number: 20130222747
    Abstract: The present invention provides a display panel capable of suppressing display unevenness caused by the capacitance change due to misalignment when four primary colors are used. The display panel of the present invention includes: signal lines; pixel electrodes; and a common electrode. In the display panel, a single pixel is constituted by picture elements of four or more colors. Each of the pixel electrodes is connected to each one of the signal lines. The pixel electrodes, which are included in the single pixel, are arranged in a squared shape, and include a pixel electrode having larger area and a pixel electrode having smaller area. Both of a signal line connected to the pixel electrode having the larger area and a signal line connected to the pixel electrode having the smaller area overlap with the pixel electrode having the larger area.
    Type: Application
    Filed: November 1, 2011
    Publication date: August 29, 2013
    Applicant: SHARP KABUSHIKI KAISHA
    Inventors: Yuhko Hisada, Hironobu Sawada, Junichi Morinaga, Katsushige Asada, Ryohki Itoh
  • Publication number: 20130222746
    Abstract: The present invention relates to a liquid crystal display panel which can prevents roughness of the displayed image and reduction in the contrast ratio accompanying a use of four or more color filters of different colors.
    Type: Application
    Filed: November 1, 2011
    Publication date: August 29, 2013
    Applicant: SHARP KABUSHIKI KAISHA
    Inventors: Ryohki Itoh, Yuhko Hisada, Junichi Morinaga, Hironobu Sawada, Katsushige Asada
  • Publication number: 20130200373
    Abstract: The present invention provides an inexpensive display device that includes an ion sensor portion and a display and that can be miniaturized. The present invention is a display device that includes an ion sensor portion including an ion sensor circuit and a display including a display-driving circuit. The display device has a substrate, and at least one portion of the ion sensor circuit and at least one portion of the display-driving circuit are formed on the same main surface of the substrate.
    Type: Application
    Filed: May 18, 2011
    Publication date: August 8, 2013
    Inventors: Atsuhito Murai, Yoshiharu Kataoka, Takuya Watanabe, Yuhko Hisada, Satoshi Horiuchi
  • Publication number: 20130088681
    Abstract: An object of the present invention is to provide a display panel and a display device which are able to sufficiently increase the luminance, and to suppress the occurrence of difference in response speed, transmissivity, and viewing angle characteristics, and the like for each color, and which are also able to improve the yield in the manufacturing process, and are able to be applied to various display modes, such as a CPA mode, an MVA mode, and an IPS mode.
    Type: Application
    Filed: May 24, 2011
    Publication date: April 11, 2013
    Inventors: Yuhko Hisada, Hironobu Sawada, Junichi Morinaga, Katsushige Asada