Patents by Inventor Atsushi Ban

Atsushi Ban 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: 20070268438
    Abstract: An active matrix substrate includes a substrate; scanning lines formed on the substrate; an insulating film covering the scanning lines; signal lines intersecting the scanning lines via the insulating film; switching elements formed on the substrate, each operating in response to a signal which is applied to the corresponding scanning line; and pixel electrodes each capable of being electrically connected to the corresponding signal line via the switching elements. The insulating film is a multilayer insulating film including a first insulating layer and a second insulating layer. The first insulating layer is formed of an insulating material containing an organic component, and the multilayer insulating film has a low-stack region in at least a portion of a region overlapping each switching element, the first insulating layer not being formed in the low-stack region.
    Type: Application
    Filed: August 23, 2005
    Publication date: November 22, 2007
    Applicant: SHARP KABUSHIKI KAISHA
    Inventors: Wataru Nakamura, Atsushi Ban, Shoji Okazaki, Hiromitsu Katsui, Yoshihiro Okada
  • Publication number: 20070195237
    Abstract: A liquid crystal display device includes a first substrate; a second substrate; a liquid crystal layer interposed between the first substrate and the second substrate; a first polarizer provided on a surface of the first substrate which is on the opposite side to the liquid crystal layer; a second polarizer provided on a surface of the second substrate which is on the opposite side to the liquid crystal layer; a first phase compensation element provided between the first polarizer and the liquid crystal layer; and a second phase compensation element provided between the second polarizer and the liquid crystal layer. A plurality of pixel areas are provided for display. The first substrate includes at least one transmissive electrode, and the second substrate includes a reflective electrode region and a transmissive electrode region in correspondence with each of the plurality of pixel areas.
    Type: Application
    Filed: August 22, 2006
    Publication date: August 23, 2007
    Applicant: Sharp Kabushiki Kaisha
    Inventors: Masumi Kubo, Yozo Narutaki, Shogo Fujioka, Yuko Maruyama, Takayuki Shimada, Youji Yoshimura, Mikio Katayama, Yutaka Ishii, Shinya Yamakawa, Atsushi Ban
  • Publication number: 20070019138
    Abstract: A liquid crystal display device includes a first substrate; a second substrate; a liquid crystal layer interposed between the first substrate and the second substrate; a first polarizer provided on a surface of the first substrate which is on the opposite side to the liquid crystal layer; a second polarizer provided on a surface of the second substrate which is on the opposite side to the liquid crystal layer; a first phase compensation element provided between the first polarizer and the liquid crystal layer; and a second phase compensation element provided between the second polarizer and the liquid crystal layer. A plurality of pixel areas are provided for display. The first substrate includes at least one transmissive electrode, and the second substrate includes a reflective electrode region and a transmissive electrode region in correspondence with each of the plurality of pixel areas.
    Type: Application
    Filed: August 22, 2006
    Publication date: January 25, 2007
    Applicant: Sharp Kabushiki Kaisha
    Inventors: Masumi Kubo, Yozo Narutaki, Shogo Fujioka, Yuko Maruyama, Takayuki Shimada, Youji Yoshimura, Mikio Katayama, Yutaka Ishii, Shinya Yamakawa, Atsushi Ban
  • Publication number: 20070002227
    Abstract: A liquid crystal display device includes a first substrate; a second substrate; a liquid crystal layer interposed between the first substrate and the second substrate; a first polarizer provided on a surface of the first substrate which is on the opposite side to the liquid crystal layer; a second polarizer provided on a surface of the second substrate which is on the opposite side to the liquid crystal layer; a first phase compensation element provided between the first polarizer and the liquid crystal layer; and a second phase compensation element provided between the second polarizer and the liquid crystal layer. A plurality of pixel areas are provided for display. The first substrate includes at least one transmissive electrode, and the second substrate includes a reflective electrode region and a transmissive electrode region in correspondence with each of the plurality of pixel areas.
    Type: Application
    Filed: August 22, 2006
    Publication date: January 4, 2007
    Applicant: Sharp Kabushiki Kaisha
    Inventors: Masumi Kubo, Yozo Narutaki, Shogo Fujioka, Yuko Maruyama, Takayuki Shimada, Youji Yoshimura, Mikio Katayama, Yutaka Ishii, Shinya Yamakawa, Atsushi Ban
  • Patent number: 7151581
    Abstract: A liquid crystal display device includes a first substrate; a second substrate; a liquid crystal layer interposed between the first substrate and the second substrate; a first polarizer provided on a surface of the first substrate which is on the opposite side to the liquid crystal layer; a second polarizer provided on a surface of the second substrate which is on the opposite side to the liquid crystal layer; a first phase compensation element provided between the first polarizer and the liquid crystal layer; and a second phase compensation element provided between the second polarizer and the liquid crystal layer. A plurality of pixel areas are provided for display. The first substrate includes at least one transmissive electrode, and the second substrate includes a reflective electrode region and a transmissive electrode region in correspondence with each of the plurality of pixel areas.
    Type: Grant
    Filed: August 4, 2005
    Date of Patent: December 19, 2006
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Masumi Kubo, Yozo Narutaki, Shogo Fujioka, Yuko Maruyama, Takayuki Shimada, Youji Yoshimura, Mikio Katayama, Yutaka Ishii, Shinya Yamakawa, Atsushi Ban
  • Patent number: 7126157
    Abstract: An active matrix substrate includes base substrate, gate lines, data lines, thin-film transistors and pixel electrodes. The gate lines are formed on the base substrate. The data lines are formed over the gate lines. Each of the data lines crosses all of the gate lines with an insulating film interposed therebetween. The thin-film transistors are formed over the base substrate. Each of the thin-film transistors is associated with one of the gate lines and operates responsive to a signal on the associated gate line. Each of the pixel electrodes is associated with one of the data lines and one of the thin-film transistors and is electrically connectable to the associated data line by way of the associated thin-film transistor. Each of the pixel electrodes and the associated thin-film transistor are connected together by way of a conductive member.
    Type: Grant
    Filed: August 19, 2004
    Date of Patent: October 24, 2006
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Yoshihiro Okada, Yuichi Saito, Shinya Yamakawa, Atsushi Ban, Masaya Okamoto, Hiroyuki Ohgami
  • Publication number: 20060231840
    Abstract: An active matrix substrate includes base substrate, gate lines, data lines, thin-film transistors and pixel electrodes. The gate lines are formed on the base substrate. The data lines are formed over the gate lines. Each of the data lines crosses all of the gate lines with an insulating film interposed therebetween. The thin-film transistors are formed over the base substrate. Each of the thin-film transistors is associated with one of the gate lines and operates responsive to a signal on the associated gate line. Each of the pixel electrodes is associated with one of the data lines and one of the thin-film transistors and is electrically connectable to the associated data line by way of the associated thin-film transistor. Each of the pixel electrodes and the associated thin-film transistor are connected together by way of a conductive member.
    Type: Application
    Filed: June 8, 2006
    Publication date: October 19, 2006
    Applicant: Sharp Kabushiki Kaisha
    Inventors: Yoshihiro Okada, Yuichi Saito, Shinya Yamakawa, Atsushi Ban, Masaya Okamoto, Hiroyuki Ohgami
  • Publication number: 20050285987
    Abstract: An auxiliary line including a guide layer and an auxiliary metallic member is formed with respect to a signal transmitting line or a main auxiliary capacitance line formed on a glass substrate. The guide layer is formed in the same layer where pixel electrodes are formed. The auxiliary metallic member is formed by using a method such as an inkjet method, in which fine particles of metal is ejected or dropped.
    Type: Application
    Filed: June 22, 2005
    Publication date: December 29, 2005
    Applicant: Sharp Kabushiki Kaisha
    Inventors: Kyoko Azumada, Kenji Nakamura, Atsushi Ban, Tatsuya Fujita
  • Publication number: 20050270455
    Abstract: A liquid crystal display device includes a first substrate; a second substrate; a liquid crystal layer interposed between the first substrate and the second substrate; a first polarizer provided on a surface of the first substrate which is on the opposite side to the liquid crystal layer; a second polarizer provided on a surface of the second substrate which is on the opposite side to the liquid crystal layer; a first phase compensation element provided between the first polarizer and the liquid crystal layer; and a second phase compensation element provided between the second polarizer and the liquid crystal layer. A plurality of pixel areas are provided for display. The first substrate includes at least one transmissive electrode, and the second substrate includes a reflective electrode region and a transmissive electrode region in correspondence with each of the plurality of pixel areas.
    Type: Application
    Filed: August 4, 2005
    Publication date: December 8, 2005
    Applicant: Sharp Kabushiki Kaisha
    Inventors: Masumi Kubo, Yozo Narutaki, Shogo Fujioka, Yuko Maruyama, Takayuki Shimada, Youji Yoshimura, Mikio Katayama, Yutaka Ishii, Shinya Yamakawa, Atsushi Ban
  • Publication number: 20050248595
    Abstract: With regard to each of primary colors for image display on the image display panel, (i) three video signals are extracted from each of video signal rows of J types in which the video signals supplied to pixels are aligned in line with time series, in such a manner as to cause the order of primary colors reproduced by the three video signals to be in line with the order of the J primary colors allocated to the respective pixels, and (ii) video signal rows of three types are generated by serially allocating each of the three video signals to any one of the video signal rows of three types.
    Type: Application
    Filed: May 6, 2005
    Publication date: November 10, 2005
    Inventors: Kazunari Tomizawa, Yoshihiro Okada, Atsushi Ban
  • Patent number: 6956633
    Abstract: In an active matrix type liquid crystal display apparatus, each of pixel electrodes has overhanging portions at its opposite side edges. These overhanging portions of the pixel electrode cover two signal lines placed on opposite sides of the pixel electrode, respectively.
    Type: Grant
    Filed: July 21, 2003
    Date of Patent: October 18, 2005
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Yoshihiro Okada, Atsushi Ban
  • Patent number: 6950159
    Abstract: A liquid crystal display device includes a first substrate; a second substrate; a liquid crystal layer interposed between the first substrate and the second substrate; a first polarizer provided on a surface of the first substrate which is on the opposite side to the liquid crystal layer; a second polarizer provided on a surface of the second substrate which is on the opposite side to the liquid crystal layer; a first phase compensation element provided between the first polarizer and the liquid crystal layer; and a second phase compensation element provided between the second polarizer and the liquid crystal layer. A plurality of pixel areas are provided for display. The first substrate includes at least one transmissive electrode, and the second substrate includes a reflective electrode region and a transmissive electrode region in correspondence with each of the plurality of pixel areas.
    Type: Grant
    Filed: August 20, 2004
    Date of Patent: September 27, 2005
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Masumi Kubo, Yozo Narutaki, Shogo Fujioka, Yuko Maruyama, Takayuki Shimada, Youji Yoshimura, Mikio Katayama, Yutaka Ishii, Shinya Yamakawa, Atsushi Ban
  • Patent number: 6864871
    Abstract: An object of the invention is to increase the rate of conforming articles by reducing defects due to leakage of supplementary capacitances in an active-matrix liquid crystal display apparatus of a Cs on Com structure having supplementary capacitances. In a normally-white mode active-matrix liquid crystal display apparatus, a plurality of gate signal lines and source signal lines are formed so as to intersect at right angles, pixel capacitors are connected to the intersections through TFTs, and image display is performed. To the pixel capacitors, supplementary capacitances are connected in parallel. Supplementary capacitance lines are driven by a supplementary capacitance drive circuit so that a potential difference not less than a threshold value of the liquid crystal is maintained from common signal lines on a counter electrode substrate.
    Type: Grant
    Filed: October 20, 2000
    Date of Patent: March 8, 2005
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Yoshihiro Okada, Atsushi Ban, Masaya Okamoto
  • Publication number: 20050023557
    Abstract: An active matrix substrate includes base substrate, gate lines, data lines, thin-film transistors and pixel electrodes. The gate lines are formed on the base substrate. The data lines are formed over the gate lines. Each of the data lines crosses all of the gate lines with an insulating film interposed therebetween. The thin-film transistors are formed over the base substrate. Each of the thin-film transistors is associated with one of the gate lines and operates responsive to a signal on the associated gate line. Each of the pixel electrodes is associated with one of the data lines and one of the thin-film transistors and is electrically connectable to the associated data line by way of the associated thin-film transistor. Each of the pixel electrodes and the associated thin-film transistor are connected together by way of a conductive member.
    Type: Application
    Filed: August 19, 2004
    Publication date: February 3, 2005
    Inventors: Yoshihiro Okada, Yuichi Saito, Shinya Yamakawa, Atsushi Ban, Masaya Okamoto, Hiroyuki Ohgami
  • Publication number: 20050018118
    Abstract: A liquid crystal display device includes a first substrate; a second substrate; a liquid crystal layer interposed between the first substrate and the second substrate; a first polarizer provided on a surface of the first substrate which is on the opposite side to the liquid crystal layer; a second polarizer provided on a surface of the second substrate which is on the opposite side to the liquid crystal layer; a first phase compensation element provided between the first polarizer and the liquid crystal layer; and a second phase compensation element provided between the second polarizer and the liquid crystal layer. A plurality of pixel areas are provided for display. The first substrate includes at least one transmissive electrode, and the second substrate includes a reflective electrode region and a transmissive electrode region in correspondence with each of the plurality of pixel areas.
    Type: Application
    Filed: August 20, 2004
    Publication date: January 27, 2005
    Applicant: Sharp Kabushiki Kaisha
    Inventors: Masumi Kubo, Yozo Narutaki, Shogo Fujioka, Yuko Maruyama, Takayuki Shimada, Youji Yoshimura, Mikio Katayama, Yutaka Ishii, Shinya Yamakawa, Atsushi Ban
  • Patent number: 6819379
    Abstract: A liquid crystal display device includes a first substrate; a second substrate; a liquid crystal layer interposed between the first substrate and the second substrate; a first polarizer provided on a surface of the first substrate which is on the opposite side to the liquid crystal layer; a second polarizer provided on a surface of the second substrate which is on the opposite side to the liquid crystal layer; a first phase compensation element provided between the first polarizer and the liquid crystal layer; and a second phase compensation element provided between the second polarizer and the liquid crystal layer. A plurality of pixel areas are provided for display. The first substrate includes at least one transmissive electrode, and the second substrate includes a reflective electrode region and a transmissive electrode region in correspondence with each of the plurality of pixel areas.
    Type: Grant
    Filed: August 13, 2001
    Date of Patent: November 16, 2004
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Masumi Kubo, Yozo Narutaki, Shogo Fujioka, Yuko Maruyama, Takayuki Shimada, Youji Yoshimura, Mikio Katayama, Yutaka Ishii, Shinya Yamakawa, Atsushi Ban
  • Patent number: 6797982
    Abstract: An active matrix substrate includes base substrate, gate lines, data lines, thin-film transistors and pixel electrodes. The gate lines are formed on the base substrate. The data lines are formed over the gate lines. Each of the data lines crosses all of the gate lines with an insulating film interposed therebetween. The thin-film transistors are formed over the base substrate. Each of the thin-film transistors is associated with one of the gate lines and operates responsive to a signal on the associated gate line. Each of the pixel electrodes is associated with one of the data lines and one of the thin-film transistors and is electrically connectable to the associated data line by way of the associated thin-film transistor. Each of the pixel electrodes and the associated thin-film transistor are connected together by way of a conductive member.
    Type: Grant
    Filed: August 24, 2001
    Date of Patent: September 28, 2004
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Yoshihiro Okada, Yuichi Saito, Shinya Yamakawa, Atsushi Ban, Masaya Okamoto, Hiroyuki Ohgami
  • Patent number: 6724358
    Abstract: Pseudo-impulse display for reducing after-images during display of moving images in an active matrix type display apparatus. Liquid crystal capacitors are formed at intersections of signal lines and scanning lines to display images. Auxiliary capacitors are provided for keeping a potential difference across the liquid crystal capacitors during display. One of the two electrodes of the auxiliary capacitors is connected to a switching element together with a pixel electrode. After the liquid crystal capacitor and the auxiliary capacitor have been charged with a video signal on the signal lines while the switching element is selectively put into the conducting state with the scanning lines, and after a predetermined time has passed, an auxiliary capacitor driver applies a signal to the other electrode of the auxiliary capacitor, such that the display luminance due to the liquid crystal capacitor is reduced.
    Type: Grant
    Filed: March 15, 2001
    Date of Patent: April 20, 2004
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Atsushi Ban, Yoshihiro Okada, Wataru Nakamura
  • Publication number: 20040017521
    Abstract: In an active matrix type liquid crystal display apparatus, each of pixel electrodes has overhanging portions at its opposite side edges. These overhanging portions of the pixel electrode cover two signal lines placed on opposite sides of the pixel electrode, respectively.
    Type: Application
    Filed: July 21, 2003
    Publication date: January 29, 2004
    Inventors: Yoshihiro Okada, Atsushi Ban
  • Patent number: 6633360
    Abstract: In an active matrix type liquid crystal display apparatus, each of pixel electrodes has overhanging portions at its opposite side edges. These overhanging portions of the pixel electrode cover two signal lines placed on opposite sides of the pixel electrode, respectively.
    Type: Grant
    Filed: March 29, 2001
    Date of Patent: October 14, 2003
    Inventors: Yoshihiro Okada, Atsushi Ban