Patents by Inventor Toshiaki Fujihara

Toshiaki Fujihara 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: 20100328558
    Abstract: At least either a first substrate or a second substrate has regions corresponding to subpixels (15a, 15b, 15c) and provided with ribs (100a) for controlling how a liquid crystal material is aligned. Scanning signal lines (32) and picture element electrodes (60) are overlapped with each other via an insulating material as seen in plan view. The ribs (100a) and the scanning signal lines (32) are at least partially overlapped with each other as seen in plan view.
    Type: Application
    Filed: December 3, 2008
    Publication date: December 30, 2010
    Inventors: Katsushige Asada, Masahiro Yoshida, Masakatsu Tominaga, Tetsuya Fujikawa, Junichi Morinaga, Toshiaki Fujihara
  • Publication number: 20100214195
    Abstract: The present invention provides an irregularly-shaped display panel having a display region with a contour section having a good appearance, which is easily designed and produced. The present invention is a display panel comprising a display region including: an array of a plurality of pixels each constituted by a plurality of sub-pixels; and a plurality of wirings provided along boundaries of the plurality of sub-pixels, wherein a plurality of pixels include a pixel for a contour located in a contour section of the display region; the sub-pixels constituting the pixel for a contour have aperture regions having similar aperture areas to one another and contour lines each running in parallel with a drawing direction of one of the wirings at least on the side of a frame region; and the aperture area of the pixel for a contour is smaller than an aperture area of a pixel located at an inner side of the contour section of the display region.
    Type: Application
    Filed: June 16, 2008
    Publication date: August 26, 2010
    Applicant: SHARP KABUSHIKI KAISHA
    Inventors: Isao Ogasawara, Toshiaki Fujihara, Takaharu Yamada
  • Publication number: 20100141570
    Abstract: In one embodiment of the present invention, a display panel includes an active matrix type pixel region including scanning signal lines each of which is connected to three terminal elements each of which serves as an active element, the active matrix type pixel region including a non-rectangular shape by being configured such that the respective scanning signal lines are connected with various numbers of the three terminal elements according to where the scanning signal lines are located, and a shift register which drives the scanning signal lines, the shift register being formed in a region on a panel substrate, the region being adjacent to the pixel region in a direction in which the scanning signal lines extend.
    Type: Application
    Filed: July 4, 2008
    Publication date: June 10, 2010
    Inventors: Satoshi Horiuchi, Toshiaki Fujihara, Takaharu Yamada, Isao Ogasawara, Hironobu Sawada
  • Publication number: 20100033643
    Abstract: The present invention provides a liquid crystal display panel capable of providing a high contrast ratio with a storage capacitance being secured, and also provides a liquid crystal display device including such a panel. The present invention is a liquid crystal display panel having a structure in which a liquid crystal layer is interposed between a first substrate and a second substrate, wherein at least one of the first substrate and the second substrate includes a projection for liquid crystal alignment control, the first substrate includes a scanning signal line, a data signal line, a drain electrode electrically connected to a pixel electrode, a switching element, and a storage capacitor wiring, the storage capacitor wiring includes a main wiring part and a branch part, the branch part being connected to the main wiring part and overlapping with the projection for liquid crystal alignment control.
    Type: Application
    Filed: September 4, 2007
    Publication date: February 11, 2010
    Inventors: Satoshi Horiuchi, Toshiaki Fujihara, Masakatsu Tominaga, Hitoshi Matsumoto, Hironobu Sawada, Ryohki Itoh
  • Patent number: 6600534
    Abstract: A reflective liquid crystal display device is provided in which, on one of a pair of substrates opposed to each other with a liquid crystal layer interposed therebetween, data signal lines and scanning signal lines are provided so as to cross each other, thin film transistors are provided so as to be electrically connected to the data signal lines and the scanning signal lines, reflective pixel electrodes are provided on an interlayer insulator formed so as to cover at least a part of the data signal lines, the scanning signal lines, or the thin film transistors, and the reflective pixel electrodes are electrically connected to drain electrodes of the thin film transistors, wherein an underlying film is disposed in contact with the interlayer insulator, the underlying film uniforming heat conduction and/or light transmittance between the interlayer insulator and the one of the substrates and/or contact properties of the interlayer insulator with respect to the one of the substrates in a region where at least
    Type: Grant
    Filed: December 8, 1998
    Date of Patent: July 29, 2003
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Kyoushi Tanaka, Nobuyoshi Nagashima, Toshiaki Fujihara, Mariko Ban
  • Patent number: 6169593
    Abstract: A method for producing a reflection-type liquid crystal display device includes the steps of forming an ITO layer in the first substrate; patterning the ITO layer to form the top layer in the at least one of the terminal sections; forming a first protective layer so as to cover the top layer; forming a metal layer mainly formed of aluminum so as to cover the first protective layer; and at least partially removing the metal layer and the first protective layer to form a reflective section from the metal layer and expose only the flat area of the top surface of the top layer in the at least one of the terminal sections. Before the step of forming the first protective layer, only the flat area of the top surface of the layer is exposed in at least one of the terminal sections so as to allow the first protective layer to contact the top layer along only the flat area.
    Type: Grant
    Filed: December 11, 1998
    Date of Patent: January 2, 2001
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Takayuki Kanaya, Motoji Shiota, Toshiaki Fujihara, Kiyoshi Inada
  • Patent number: 5508591
    Abstract: An active display device, comprising: a plurality of source buses and a plurality of gate buses; a plurality of pixel electrodes, said pixel electrodes each having associated therewith a switching element for delivering a drive signal to said pixel electrode from at least one of said source buses as a function of a signal provided by at least one of said gate buses; and means other than said switching elements for selectively electrically connecting at least one of said pixel electrodes to a corresponding one of said source buses in the event said at least one pixel electrode is considered to be defective.
    Type: Grant
    Filed: April 15, 1993
    Date of Patent: April 16, 1996
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Yuzuru Kanemori, Mikio Katayama, Kiyoshi Nakazawa, Naofumi Kondo, Masaya Okamoto, Hiroaki Kato, Kozo Yano, Katsumi Irie, Kumiko Otsu, Hiroshi Fujiki, Toshiaki Fujihara, Hideji Marumoto, Hidenori Negoto, Kazuyori Mitsumoto
  • Patent number: 5469025
    Abstract: An active matrix display device which includes a first and a second insulating substrates, a gate bus an adjacent gate bus, and a source bus arranged on the first substrate, a pixel electrode in a segment enclosed by the gate and the source buses, a switching element connected to the pixel electrode, the gate bus and the source bus, wherein the source bus comprises a projection extending toward the pixel electrode so as to be electrically disconnected therefrom, and the adjacent gate bus comprises a projection extending toward the pixel electrode, the source bus being overlaid on the adjacent gate bus projection with an insulating layer sandwiched therebetween, the adjacent gate bus projection being provided with an electroconductive member at the top thereof with an insulating layer sandwiched therebetween, the electroconductive member being electrically connected to the pixel electrode, and electrically disconnected from the source bus projection.
    Type: Grant
    Filed: March 22, 1995
    Date of Patent: November 21, 1995
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Yuzuru Kanemori, Mikio Katayama, Kiyoshi Nakazawa, Naofumi Kondo, Masaya Okamoto, Hiroaki Kato, Kozo Yano, Katsumi Irie, Kumiko Otsu, Hiroshi Fujiki, Toshiaki Fujihara, Hideji Marumoto, Hidenori Negoto, Kazuyori Mitsumoto
  • Patent number: 5335102
    Abstract: An active matrix display device comprising: scanning branch lines each branching from the scanning line; and switching elements each formed on an end portion of the scanning branch line, wherein the distance between the scanning line side of the switching element and the scanning line is so provided as to enable the scanning branch line to be cut off by irradiation with light energy. Alternatively, an active matrix display device comprising: a conductive layer disposed under the signal line and the pixel electrode with an insulating film interposed therebetween; and a conductive piece formed between the pixel electrode and the insulating film.
    Type: Grant
    Filed: February 19, 1991
    Date of Patent: August 2, 1994
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Yuzuru Kanemori, Mikio Katayama, Kiyoshi Nakazawa, Hiroaki Kato, Kozo Yano, Naofumi Kondo, Hiroshi Fujiki, Toshiaki Fujihara, Hidenori Negoto, Manabu Takahama
  • Patent number: 5302987
    Abstract: An active matrix substrate has an insulating substrate, a plurality of signal lines and a plurality of scanning lines arranged in a matrix on the insulating substrate and defining a matrix of areas, each area including a pixel electrode and a switching device. The switching device has a connecting electrode for connecting the switching device to the pixel electrode. The connecting electrode includes a rectangular main portion and an extended portion connected to the main portion, and the main portion has a side which is substantially identical in length to the width of the switching device. The main portion and the extended portion are disposed between the pixel electrode and the insulating substrate.
    Type: Grant
    Filed: April 28, 1992
    Date of Patent: April 12, 1994
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Yuzuru Kanemori, Hiroshi Fujiki, Toshiaki Fujihara, Akihiko Imaya, Hiroaki Kato, Mikio Katayama, Takayoshi Nagayasu
  • Patent number: 5191451
    Abstract: An active matrix display device which includes a pair of insulated substrates, pixel electrodes arranged in matrix on an inner side of one of the pair of insulated substrates, each pixel electrode being provided with at least a pair of TFTs including gate electrodes and drain electrodes, wherein the gate electrodes are formed in symmetrical shapes with respect to a central plane passing through a center between the pair of TFTs, thereby ensuring that the parasitic capacitance of the TFTs remain constant irrespective of a possible displacement of the drain electrodes and keeping the display device free from flickers due to differentiated parasitic capacitances.
    Type: Grant
    Filed: April 16, 1991
    Date of Patent: March 2, 1993
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Mikio Katayama, Naofumi Kondo, Yuzuru Kanemori, Toshiaki Fujihara, Hiroshi Fujiki, Kiyoshi Nakazawa