Patents by Inventor Arihiro Takeda

Arihiro Takeda 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: 20130114033
    Abstract: In one embodiment, a liquid crystal display device includes a first substrate and a second substrate arranged facing the first substrate with a gap. A plurality of pixels is arranged in a matrix of a first direction and a second direction orthogonally crossing the first direction. The length of the pixel along the first direction is shorter than that along the second direction. Each pixel includes a main pixel electrode formed on the first substrate extending in the second direction, and main common electrodes formed on the second substrate extending in the second direction and arranged so as to sandwich the main pixel electrode in the first direction. Further, each pixel includes a plurality of regions in which an inter-electrode distance between the main pixel electrode and the main common electrode in the first direction differs mutually in the respective regions.
    Type: Application
    Filed: October 16, 2012
    Publication date: May 9, 2013
    Inventors: Tatsuaki KUJI, Arihiro TAKEDA
  • Publication number: 20130077010
    Abstract: In one embodiment, a liquid crystal display device includes a first substrate and a second substrate. The first substrate includes a first gate line and a second gate line extending in a first direction, respectively. A first source line and a second source line extend in a second direction orthogonally crossing the first direction. A pixel electrode includes a first main pixel electrode in the shape of a belt located on an edge of the first source line and extending in the second direction, and a second main pixel electrode in the shape of a belt located on an edge of the second source line and extending in the second direction. A second substrate includes a main common electrode located between the first main pixel electrode and the second main pixel electrode and extending in the second direction.
    Type: Application
    Filed: July 31, 2012
    Publication date: March 28, 2013
    Applicant: Japan Display Central Inc.
    Inventors: Arihiro Takeda, Jin Hirosawa
  • Publication number: 20130057815
    Abstract: In one embodiment, a first substrate includes a main pixel electrode and a first alignment film formed on the main pixel electrode having vertical alignment characteristics. A second substrate includes a pair of main common electrodes and a second alignment film formed on the main common electrodes having vertical alignment characteristics. A liquid crystal layer is held between the first substrate and the second substrate having positive dielectric anisotropy. The main pixel electrode is arranged extending in a first direction. The pair of main common electrodes is arranged in the first direction, respectively, so as to sandwich the main pixel electrode.
    Type: Application
    Filed: July 11, 2012
    Publication date: March 7, 2013
    Applicant: Japan Display Central Inc.
    Inventors: Keisuke Takano, Jin Hirosawa, Arihiro Takeda, Hirokazu Morimoto
  • Publication number: 20130050601
    Abstract: According to one embodiment, a liquid crystal display device includes a first substrate including a plurality of first signal lines disposed with a first pitch along a second direction, a plurality of second signal lines disposed with a second pitch along a first direction, and a first electrode including an n-number of first main electrodes (n is an integer of 2 or more), a second substrate including a second electrode including a plurality of second main electrodes disposed with a third pitch along the first direction, wherein an n-number of times the third pitch is substantially equal to the second pitch, and any one of the second main electrodes is located above each of the second signal lines.
    Type: Application
    Filed: July 5, 2012
    Publication date: February 28, 2013
    Inventors: Arihiro Takeda, Hirokazu Morimoto, Jin Hirosawa
  • Publication number: 20130050628
    Abstract: According to one embodiment, a liquid crystal display apparatus includes a liquid crystal display panel, a sensing substrate, and an adhesive. The liquid crystal display panel includes a first substrate including a pixel electrode, a second substrate, a liquid crystal layer and a pixel. The pixel electrode includes a primary pixel electrode. The common electrode includes a pair of primary common electrodes. The sensing substrate is configured to detect positional information of a location input. The adhesive joins the liquid crystal display panel and the sensing substrate.
    Type: Application
    Filed: August 14, 2012
    Publication date: February 28, 2013
    Inventors: Keisuke Takano, Nobuko Fukuoka, Arihiro Takeda
  • Publication number: 20130038823
    Abstract: According to one embodiment, a liquid crystal display device includes a main pixel electrode which extends in a second direction, a sub-pixel electrode which extends in a first direction and crosses the main pixel electrode, a color filter which includes a first aperture portion defined by a first edge surrounding a position opposed to cross points between the main pixel electrode and the sub-pixel electrode, main common electrodes which extend in the second direction on both sides of the main pixel electrode.
    Type: Application
    Filed: May 11, 2012
    Publication date: February 14, 2013
    Inventors: Arihiro Takeda, Tomoko Kozuka, Jin Hirosawa
  • Publication number: 20130038827
    Abstract: According to one embodiment, a liquid crystal display apparatus includes a liquid crystal layer held in a gap formed by providing a spacer between an array substrate and a counter substrate. The spacer is formed on a primary pixel electrode or a common electrode.
    Type: Application
    Filed: August 1, 2012
    Publication date: February 14, 2013
    Inventors: Natsuko Fujiyama, Arihiro Takeda
  • Publication number: 20130033661
    Abstract: According to one embodiment, a liquid crystal display device includes a first substrate including an interlayer insulation film covering a first wiring line, a second wiring line and a third wiring line on the interlayer insulation film, and a first electrode which is located between the second wiring line and the third wiring line on the interlayer insulation film, is spaced apart from the second wiring line and the third wiring line, a second substrate including a second electrode which is opposed to each of the second wiring line and the third wiring line, and a liquid crystal layer between the first substrate and the second substrate.
    Type: Application
    Filed: May 15, 2012
    Publication date: February 7, 2013
    Inventors: Tomoko KOZUKA, Hirokazu MORIMOTO, Arihiro TAKEDA
  • Patent number: 8355104
    Abstract: An MVA mode liquid crystal display device is configured such that a liquid crystal layer including liquid crystal molecules having negative dielectric constant anisotropy is held between a first substrate and a second substrate. The liquid crystal display device includes a structural body which controls an alignment direction of the liquid crystal molecules in a manner to form a multi-domain in each of pixels. The structural body includes a first structural body which is disposed in a manner to overlap a light-blocking wiring line, and a second structural body which is disposed in a direction substantially perpendicular to the first structural body and is formed to be narrower than the first structural body.
    Type: Grant
    Filed: December 3, 2008
    Date of Patent: January 15, 2013
    Assignee: Japan Display Central Inc.
    Inventors: Norihiro Yoshida, Yoshitaka Yamada, Jin Hirosawa, Arihiro Takeda
  • Publication number: 20130010235
    Abstract: According to one embodiment, a liquid crystal display device includes a first substrate including a cross-shaped pixel electrode which includes a main pixel electrode and a sub-pixel electrode, and a second substrate including a common electrode which includes main common electrodes and sub-common electrodes. A first horizontal inter-electrode distance between the main pixel electrode and the main common electrode is less than a second horizontal inter-electrode distance between the sub-pixel electrode and the sub-common electrode and is greater than a vertical inter-electrode distance between the main pixel electrode and the main common electrode.
    Type: Application
    Filed: February 27, 2012
    Publication date: January 10, 2013
    Inventors: Jin HIROSAWA, Arihiro Takeda
  • Publication number: 20130010237
    Abstract: According to one embodiment, a liquid crystal display device includes a first substrate including a first source line and a second source line, a pixel electrode, and a first alignment film, a second substrate including an insulative substrate, a shield electrode, a black matrix, a color filter, an overcoat layer, a common electrode, and a second alignment film, and a liquid crystal layer, wherein a surface resistance of the shield electrode is higher than a surface resistance of the common electrode.
    Type: Application
    Filed: March 26, 2012
    Publication date: January 10, 2013
    Inventors: Natsuko FUJIYAMA, Arihiro Takeda
  • Publication number: 20130010221
    Abstract: A liquid crystal display device is provided which has a pair of substrates and a liquid crystal layer sandwiched between the pair of substrates, in which liquid crystal molecules are vertically aligned with respect to the substrates when no voltage is applied between the substrates and the liquid crystal molecules tilt in a plurality of directions to be almost parallel to the substrates by applying a voltage between the substrates. In the liquid crystal layer, when the voltage is applied, a proportion of a region where the liquid crystal molecules tilt in a direction of 0 degrees to 180 degrees is different from a proportion of a region where the liquid crystal molecules tilt in a direction of 180 degrees to 360 degrees with the angle being defined counterclockwise with the right direction on a screen being 0 degrees.
    Type: Application
    Filed: September 14, 2012
    Publication date: January 10, 2013
    Applicant: SHARP KABUSHIKI KAISHA
    Inventors: Hidefumi Yoshida, Takashi Sasabayashi, Arihiro Takeda, Yasutoshi Tasaka, Hideo Chida, Yoshio Koike
  • Publication number: 20130003005
    Abstract: An MVA mode liquid crystal display device has a liquid crystal layer including liquid crystal molecules having negative dielectric constant anisotropy held between a first substrate and a second substrate. It includes a structural body which controls an alignment direction of the liquid crystal molecules to form a multi-domain in each of pixels. The structural body includes a first structural body which overlaps a light-blocking wiring line, and a second structural body which is disposed in a direction substantially perpendicular to the first structural body and is narrower than the first structural body.
    Type: Application
    Filed: September 11, 2012
    Publication date: January 3, 2013
    Inventors: Norihiro YOSHIDA, Yoshitaka YAMADA, Jin HIROSAWA, Arihiro TAKEDA
  • Publication number: 20120293752
    Abstract: A liquid crystal display device includes a first substrate having a pair of first signal lines and a pair of second signal lines extending in a first and orthogonal second directions, and a pixel electrode arranged between the pair of second signal lines and extending in the second direction, and a second substrate having a first main common electrode and a second main common electrode respectively facing the pair of second signal lines and extending in the second direction. An effective domain is surrounded by the pairs of first and second signal lines, or by the pair of the first signal lines and the first and the second main common electrodes. A first area formed of an electrode portion including the pixel electrode is smaller than a second area formed of an aperture portion other than the first area in the effective domain.
    Type: Application
    Filed: May 14, 2012
    Publication date: November 22, 2012
    Applicant: Japan Display Central Inc.
    Inventors: Arihiro TAKEDA, Jin HIROSAWA, Hitomi HASEGAWA, Yusuke MORITA, Hirokazu MORIMOTO
  • Patent number: 8314760
    Abstract: A liquid crystal display including a pair of substrates; a liquid crystal sealed between the substrates; alignment regulating structures formed on at least one of the substrates; and a plurality of pixel regions having both of a first area in which the alignment regulating structures are disposed at first intervals and which has a first threshold voltage for driving of the liquid crystal and a second area in which the alignment regulating structures are disposed at second intervals smaller than the first intervals and which has a second threshold voltage lower than the first threshold voltage. Each of the first intervals is a distance between adjacent alignment regulating structures along a direction parallel to one of the substrates in the first area and each of the second intervals is a distance between adjacent alignment regulating structures along a direction parallel to one of the substrates in the second area.
    Type: Grant
    Filed: June 30, 2010
    Date of Patent: November 20, 2012
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Takashi Sasabayashi, Arihiro Takeda, Kazuya Ueda, Yoshio Koike, Hideaki Tsuda
  • Publication number: 20120268705
    Abstract: In one embodiment, a first substrate is provided with first and second main pixel electrodes electrically connected each other extending along a first direction, respectively. A second substrate includes first to third main common electrodes electrically connected each other extending along the first direction, respectively. The first main pixel electrode is arranged between the first and second main common electrodes, and the second main pixel electrode is arranged between the second and third main common electrodes. Four inter-electrode distances are formed. One of the four inter-electrode distances is set to an optimal inter-electrode distance, and one of the four inter-electrode distances is different from at least one of the other three inter-electrode distances. Herein, the optimal inter-electrode distance is defined as follows: in a range of voltage which is applied between the electrodes, more than 90% of a peak transmissivity is obtained by the optimal inter-electrode distance.
    Type: Application
    Filed: April 18, 2012
    Publication date: October 25, 2012
    Applicant: Japan Display Central Inc.
    Inventors: Hitomi Hasegawa, Jin Hirosawa, Arihiro Takeda, Nobuko Fukuoka, Yusuke Morita
  • Patent number: 8294860
    Abstract: A liquid crystal display device is provided which has a pair of substrates and a liquid crystal layer sandwiched between the pair of substrates, in which liquid crystal molecules are vertically aligned with respect to the substrates when no voltage is applied between the substrates and the liquid crystal molecules tilt in a plurality of directions to be almost parallel to the substrates by applying a voltage between the substrates. In the liquid crystal layer, when the voltage is applied, a proportion of a region where the liquid crystal molecules tilt in a direction of 0 degrees to 180 degrees is different from a proportion of a region where the liquid crystal molecules tilt in a direction of 180 degrees to 360 degrees with the angle being defined counterclockwise with the right direction on a screen being 0 degrees.
    Type: Grant
    Filed: July 1, 2011
    Date of Patent: October 23, 2012
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Hidefumi Yoshida, Takashi Sasabayashi, Arihiro Takeda, Hideo Chida, Yoshio Koike, Yasutoshi Tasaka
  • Publication number: 20120249930
    Abstract: In one embodiment, a liquid crystal display device includes a lens array unit having a cylindrical lens array constituted by a plurality of cylindrical lenses each having a lens surface and a generatrix corresponding to the lens surface. The lens surface is arranged in a line in a direction orthogonally crossing the generatrix. A first substrate is arranged at a back side of the lens array unit and includes a pixel electrode in a belt shape extending in a different direction from the direction in which the generatrix extends. The pixel electrode is formed in a V character shape. A second substrate is arranged between the lens array unit and the first substrate including a counter electrode in a belt shape commonly arranged on the pixel electrodes extending in a parallel direction to the pixel electrode.
    Type: Application
    Filed: March 21, 2012
    Publication date: October 4, 2012
    Applicant: Toshiba Mobile Display Co., Ltd.
    Inventors: Keisuke Takano, Takashi Sasabayashi, Arihiro Takeda, Keiji Tago, Jin Hirosawa, Hitomi Hasegawa, Yusuke Morita, Hirokazu Morimoto
  • Publication number: 20120236239
    Abstract: In one embodiment, a liquid crystal display device comprises a pixel electrode including a first main electrode disposed between a first line and a second line and extending like a belt in a first extending direction. A first counter electrode includes a second main electrode extending like a belt in the first extending direction, a second counter electrode having a third main electrode extending like a belt in the first extending direction. The second and third main electrodes are disposed on both sides of the first main electrode, and an initial alignment direction of the liquid crystal molecules is parallel with a direction passing through an interstice between the first end side of the first main electrode and the second line, and through an interstice between the second end side of the first main electrode and the first line.
    Type: Application
    Filed: January 12, 2012
    Publication date: September 20, 2012
    Applicant: TOSHIBA MOBILE DISPLAY CO., LTD.
    Inventors: Yusuke MORITA, Jin Hirosawa, Arihiro Takeda, Nobuko Fukuoka, Keiji Tago, Kazuya Daishi
  • Publication number: 20120220181
    Abstract: A liquid crystal apparatus is provided wherein the liquid crystal layer comprises a section formed by polymerizing a polymerizable compound in the presence of a liquid crystal by selectively irradiating active energy rays onto the substrate surface when no voltage is applied, or alignment control layers and bumps are formed by polymerizing a polymerizable compound which is added to said liquid crystal, or first electrodes with a vertical alignment control film and a second electrode with a horizontal alignment control film face each other and alignment control of the liquid crystal is performed by irradiating light from a direction tilted from the normal line direction on said liquid crystal display apparatus. A liquid crystal display apparatus which can implement high transmittance, high-speed response and a wide viewing angle can be provided.
    Type: Application
    Filed: May 9, 2012
    Publication date: August 30, 2012
    Applicant: SHARP KABUSHIKI KAISHA
    Inventors: Takashi Sasabayashi, Arihiro Takeda, Yoshio Koike, Takahiro Sasaki, Hidefumi Yoshida, Kazutaka Hanaoka