Patents by Inventor Yoshikazu Sakuhana

Yoshikazu Sakuhana 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).

  • LCD device having pixel electrodes asymmetrically overlapping gate and/or source signal lines
    Patent number: 6603524
    Abstract: The liquid crystal display device of this invention includes: gate signal lines; source signal lines crossing the gate signal lines; an interlayer insulating film formed on the gate signal lines and the source signal lines; and pixel electrodes formed on the interlayer insulating film, wherein a first pixel electrode and a second pixel electrode adjacent to each other at both sides of the gate signal line partially overlap the gate signal line sandwiched by the first pixel electrode and the second pixel electrode, and an overlap width of the first pixel electrode on the gate signal line is different from an overlap width of the second pixel electrode on the gate signal line.
    Type: Grant
    Filed: March 7, 2000
    Date of Patent: August 5, 2003
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Yoshinori Shimada, Hiroyuki Ohgami, Takayuki Shimada, Yoshikazu Sakuhana
  • Transmission type liquid crystal display having a transparent colorless organic interlayer insulating film between pixel electrodes and switching
    Patent number: 6433851
    Abstract: The transmission type liquid crystal display device of this invention includes: gate lines; source lines; and switching elements each arranged near a crossing of each gate line and each source line, a gate electrode of each switching element being connected to the gate line, a source electrode of the switching element being connected to the source line, and a drain electrode of the switching element being connected to a pixel electrode for applying a voltage to a liquid crystal layer, wherein an interlayer insulating film formed of an, organic film with high transparency is provided above the switching element, the gate line, and the source line, and wherein the pixel electrode formed of a transparent conductive film is provided on the interlayer insulating film.
    Type: Grant
    Filed: January 11, 2001
    Date of Patent: August 13, 2002
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Takayuki Shimada, Masaru Kajitani, Masaya Okamoto, Naofumi Kondo, Mikio Katayama, Yoshikazu Sakuhana, Akihiro Yamamoto, Yukinobu Nakata, Hirohiko Nishiki
  • Transmission type liquid crystal display having an organic interlayer elements film between pixel electrodes and switching
    Publication number: 20010002857
    Abstract: The transmission type liquid crystal display device of this invention includes: gate lines; source lines; and switching elements each arranged near a crossing of each gate line and each source line, a gate electrode of each switching element being connected to the gate line, a source electrode of the switching element being connected to the source line, and a drain electrode of the switching element being connected to a pixel electrode for applying a voltage to a liquid crystal layer, wherein an interlayer insulating film formed of an organic film with high transparency is provided above the switching element, the gate line, and the source line, and wherein the pixel electrode formed of a transparent conductive film is provided on the interlayer insulating film.
    Type: Application
    Filed: January 11, 2001
    Publication date: June 7, 2001
    Inventors: Takayuki Shimada, Masaru Kajitani, Masaya Okamoto, Naofumi Kondo, Mikio Katayama, Yoshikazu Sakuhana, Akihiro Yamamoto, Yukinobu Nakata, Hirohiko Nishiki
  • Transmission type liquid crystal display having an organic interlayer elements film between pixel electrodes and switching
    Patent number: 6195138
    Abstract: The transmission type liquid crystal display device of this invention includes: gate lines; source lines; and switching elements each arranged near a crossing of each gate line and each source line, a gate electrode of each switching element being connected to the gate line, a source electrode of the switching element being connected to the source line, and a drain electrode of the switching element being connected to a pixel electrode for applying a voltage to a liquid crystal layer, wherein an interlayer insulating film formed of an organic film with high transparency is provided above the switching element, the gate line, and the source line, and wherein the pixel electrode formed of a transparent conductive film is provided on the interlayer insulating film.
    Type: Grant
    Filed: June 12, 2000
    Date of Patent: February 27, 2001
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Takayuki Shimada, Masaru Kajitani, Masaya Okamoto, Naofumi Kondo, Mikio Katayama, Yoshikazu Sakuhana, Akihiro Yamamoto, Yukinobu Nakata, Hirohiko Nishiki
  • Liquid crystal display device with contact hole over shading line but offset from center
    Patent number: 6147722
    Abstract: A liquid crystal display including gate signal lines; source signal lines crossing the gate signal lines; an interlayer insulating film formed on the gate signal lines and the source signal lines; and pixel electrodes formed on the interlayer insulating film, wherein a first pixel electrode and a second pixel electrode adjacent to each other at both sides of the gate signal line partially overlap the gate signal line sandwiched by the first pixel electrode and the second pixel electrode, and an overlap width of the first pixel electrode on the gate signal line is different from an overlap width of the second pixel electrode on the gate signal line.
    Type: Grant
    Filed: August 1, 1997
    Date of Patent: November 14, 2000
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Yoshinori Shimada, Hiroyuki Ohgami, Takayuki Shimada, Yoshikazu Sakuhana
  • Transmission type liquid crystal display having an organic interlayer elements film between pixel electrodes and switching
    Patent number: 6097452
    Abstract: The transmission type liquid crystal display device of this invention includes: gate lines; source lines; and switching elements each arranged near a crossing of each gate line and each source line, a gate electrode of each switching element being connected to the gate line, a source electrode of the switching element being connected to the source line, and a drain electrode of the switching element being connected to a pixel electrode for applying a voltage to a liquid crystal layer, wherein an interlayer insulating film formed of an organic film with high transparency is provided above the switching element, the gate line, and the source line, and wherein the pixel electrode formed of a transparent conductive film is provided on the interlayer insulating film.
    Type: Grant
    Filed: July 6, 1998
    Date of Patent: August 1, 2000
    Assignee: Sharp Kabushiki Kaishi
    Inventors: Takayuki Shimada, Masaru Kajitani, Masaya Okamoto, Naofumi Kondo, Mikio Katayama, Yoshikazu Sakuhana, Akihiro Yamamoto, Yukinobu Nakata, Hirohiko Nishiki, Yoshinori Shimada
  • Transmission type liquid crystal display device with connecting electrode and pixel electrode connected via contact hole through interlayer insulating film and method for fabricating
    Patent number: 6052162
    Abstract: The transmission type liquid crystal display device of this invention includes: gate lines; source lines; and switching elements each arranged near a crossing of each gate line and each source line, a gate electrode of each switching element being connected to the gate line, a source electrode of the switching element being connected to the source line, and a drain electrode of the switching element being connected to a pixel electrode for applying a voltage to a liquid crystal layer, wherein an interlayer insulating film formed of an organic film with high transparency is provided above the switching element, the gate line, and the source line, and wherein the pixel electrode formed of a transparent conductive film is provided on the interlayer insulating film.
    Type: Grant
    Filed: August 12, 1996
    Date of Patent: April 18, 2000
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Takayuki Shimada, Masaru Kajitani, Masaya Okamoto, Naofumi Kondo, Mikio Katayama, Yoshikazu Sakuhana, Akihiro Yamamoto, Yukinobu Nakata, Hirohiko Nishiki, Yoshinori Shimada
  • Active matrix substrate with multi-layer signal lines and/or electrodes
    Patent number: 5995177
    Abstract: An active matrix substrate includes an insulative plate; a plurality of switching elements arranged in a matrix on the insulative plate; a plurality of gate signal lines for controlling the switching elements; a plurality of source signal lines for providing data signals to the switching elements, the source signal lines being perpendicular to the gate signal lines; and a plurality of pixel electrodes respectively provided above and in electric connection with drain electrodes of the switching elements. At least one of the source signal lines and the drain electrodes include at least a transparent conductive layer, a first metal layer and a second metal layer.
    Type: Grant
    Filed: June 11, 1998
    Date of Patent: November 30, 1999
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Takashi Fujikawa, Yoshinori Shimada, Yoshiharu Kataoka, Yoshikazu Sakuhana, Mikio Katayama
  • Transmission type liquid crystal display device having capacitance ratio of 10% or less and charging rate difference of 0.6% or less
    Patent number: 5953084
    Abstract: The transmission type liquid crystal display device of this invention includes: gate lines; source lines; and switching elements each arranged near a crossing of each gate line and each source line, a gate electrode of each switching element being connected to the gate line, a source electrode of the switching element being connected to the source line, and a drain electrode of the switching element being connected to a pixel electrode for applying a voltage to a liquid crystal layer, wherein an interlayer insulating film formed of an organic film with high transparency is provided above the switching element, the gate line, and the source line, and wherein the pixel electrode formed of a transparent conductive film is provided on the interlayer insulating film.
    Type: Grant
    Filed: July 6, 1998
    Date of Patent: September 14, 1999
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Takayuki Shimada, Masaru Kajitani, Masaya Okamoto, Naofumi Kondo, Mikio Katayama, Yoshikazu Sakuhana, Akihiro Yamamoto, Yukinobu Nakata, Hirohiko Nishiki, Yoshinori Shimada