Patents by Inventor Yozo Narutaki

Yozo Narutaki 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).

  • Patent number: 6906765
    Abstract: A color filter layer includes a first region and a second region, wherein the number of times that light used for display is transmitted through the color filter layer is different between the first region and the second region.
    Type: Grant
    Filed: July 15, 2003
    Date of Patent: June 14, 2005
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Yozo Narutaki, Masumi Kubo, Shogo Fujioka, Takayuki Shimada, Mikio Katayama, Youji Yoshimura, Yutaka Ishii
  • Patent number: 6894745
    Abstract: Each pixel region includes a transmission region for display in a transmission mode using light entering through a first substrate and a reflection region for display in a reflection mode using light entering through a second substrate. The first substrate includes a transparent electrode region and a reflection electrode region, both of which have flat surfaces facing a liquid crystal layer. The second substrate includes a transparent electrode in the reflection region and the transmission region on its surface facing the liquid crystal layer and includes a light diffusion layer in the reflection region, and the surface facing the liquid crystal layer is flat in the transmission region and the reflection region.
    Type: Grant
    Filed: January 16, 2001
    Date of Patent: May 17, 2005
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Koichi Fujimori, Masumi Kubo, Yozo Narutaki
  • Publication number: 20050083457
    Abstract: The liquid crystal display device includes a first substrate, a second substrate, a liquid crystal layer interposed between the first and second substrates, and a plurality of picture-element regions for providing display. Each of the plurality of picture-element regions has a transmission region for providing display in a transmission mode by using light incident through the first substrate, and a reflection region for providing display in a reflection mode by using light incident through the second substrate. The second substrate has a color filter layer provided in the transmission region and the reflection region. The thickness of the color filter layer in at least a part of the reflection region is smaller than the thickness of the color filter layer in the transmission region.
    Type: Application
    Filed: October 26, 2004
    Publication date: April 21, 2005
    Applicant: Sharp Kabushiki Kaisha
    Inventors: Kohichi Fujimori, Yozo Narutaki
  • Patent number: 6864945
    Abstract: A liquid crystal display has spacers for maintaining a liquid crystal layer and a cell gap between a substrate and an opposite substrate and also has regions either within a single pixel or over two or more pixels. The spacers are of columnar shape elongated from the substrate to the opposite substrate or the other way round, and the columnar spacers are provided in regions in which the liquid crystal layer is thinnest among those regions in which the liquid crystal layer varies in thickness. The structure makes the liquid crystal display having two or more different cell gaps to stably maintain those cell gaps and produces good quality displays.
    Type: Grant
    Filed: August 20, 2001
    Date of Patent: March 8, 2005
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Koichi Fujimori, Yozo Narutaki, Tokihiko Shinomiya
  • Patent number: 6850298
    Abstract: A liquid crystal display device of the present invention includes: a first substrate; a second substrate; a liquid crystal layer provided between the first substrate and the second substrate; and a plurality of picture element regions for displaying an image. Each of the plurality of picture element regions includes a transmission region in which an image is displayed in a transmission mode by using light that is coming from the side of the first substrate, and a reflection region in which an image is displayed in a reflection mode by using light that is coming from the side of the second substrate. The height of a surface of the second substrate on the side closer to the liquid crystal layer in the reflection region is greater than that in the transmission region, while the height of a surface of the first substrate on the side closer to the liquid crystal layer in the reflection region is substantially equal to that in the transmission region.
    Type: Grant
    Filed: October 1, 2002
    Date of Patent: February 1, 2005
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Kohichi Fujimori, Yozo Narutaki, Yasunobu Akebi, Ikuji Konishi
  • Patent number: 6850308
    Abstract: A liquid crystal display device includes a pair of opposite substrates, and a liquid crystal layer as a display medium disposed between said substrates. The pair of substrates are adhered together by a resin sealing material disposed on the periphery portion of at least one of the substrates at the prescribed gap, and an outflow preventing portion having a plurality of concave portions is provided so that at least a part of the outflow preventing portion overlaps with the sealing material.
    Type: Grant
    Filed: April 18, 2002
    Date of Patent: February 1, 2005
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Kazuyoshi Fujioka, Yozo Narutaki, Hisashi Nagata, Kazushige Miyamoto, Takayuki Shimada
  • 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: 6847426
    Abstract: The liquid crystal display device includes a first substrate, a second substrate, a liquid crystal layer interposed between the first and second substrates, and a plurality of picture-element regions for providing display. Each of the plurality of picture-element regions has a transmission region for providing display in a transmission mode by using light incident through the first substrate, and a reflection region for providing display in a reflection mode by using light incident through the second substrate. The second substrate has a color filter layer provided in the transmission region and the reflection region. The thickness of the color filter layer in at least a part of the reflection region is smaller than the thickness of the color filter layer in the transmission region.
    Type: Grant
    Filed: October 2, 2002
    Date of Patent: January 25, 2005
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Kohichi Fujimori, Yozo Narutaki
  • Publication number: 20050012888
    Abstract: A liquid crystal display device includes a pair of opposed substrates, and a liquid crystal layer as a display medium disposed between said substrates. The pair of substrates are adhered together by a resin sealing material disposed on the periphery portion of at least one of the substrates at a prescribed gap, and an outflow preventing portion is provided.
    Type: Application
    Filed: August 11, 2004
    Publication date: January 20, 2005
    Inventors: Kazuyoshi Fujioka, Yozo Narutaki, Hisashi Nagata, Kazushige Miyamoto, Takayuki Shimada
  • Publication number: 20040233357
    Abstract: A liquid crystal display device of the present invention includes: a first substrate; a second substrate; a liquid crystal layer provided between the first substrate and the second substrate; and a plurality of picture element regions for displaying an image. Each of the plurality of picture element regions includes a transmission region in which an image is displayed in a transmission mode by using light that is coming from the side of the first substrate, and a reflection region in which an image is displayed in a reflection mode by using light that is coming from the side of the second substrate. The height of a surface of the second substrate on the side closer to the liquid crystal layer in the reflection region is greater than that in the transmission region, while the height of a surface of the first substrate on the side closer to the liquid crystal layer in the reflection region is substantially equal to that in the transmission region.
    Type: Application
    Filed: June 25, 2004
    Publication date: November 25, 2004
    Applicant: Sharp Kabushiki Kaisha
    Inventors: Kohichi Fujimori, Yozo Narutaki, Yasunobu Akebi, Ikuji Konishi
  • 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
  • Publication number: 20040169810
    Abstract: A liquid crystal display has spacers for maintaining a liquid crystal layer and a cell gap between a substrate and an opposite substrate and also has regions either within a single pixel or over two or more pixels. The spacers are of columnar shape elongated from the substrate to the opposite substrate or the other way round, and the columnar spacers are provided in regions in which the liquid crystal layer is thinnest among those regions in which the liquid crystal layer varies in thickness. The structure makes the liquid crystal display having two or more different cell gaps to stably maintain those cell gaps and produces good quality displays.
    Type: Application
    Filed: March 4, 2004
    Publication date: September 2, 2004
    Applicant: Sharp Kabushiki Kaisha
    Inventors: Koichi Fujimori, Yozo Narutaki, Tokihiko Shinomiya
  • Patent number: 6765641
    Abstract: A display device, with a pair of substrates provided so as to face each other with a display medium interposed therebetween, includes, on a first substrate of the pair of substrates: switching elements disposed in a matrix; scanning lines and signal lines disposed so as to cross each other; and an interlayer insulating film provided so as to have the switching elements, the scanning lines and the signal lines on one surface thereof and pixel electrodes on the other surface thereof. Each of the pixel electrodes is electrically connected to a drain electrode of one of the switching elements via a contact hole which penetrates through the interlayer insulating film. The interlayer insulating film is made of an organic thin film having a high transparency and covers at least the switching elements, the scanning lines and the signal lines.
    Type: Grant
    Filed: April 16, 1998
    Date of Patent: July 20, 2004
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Masumi Kubo, Yozo Narutaki, Yuko Maruyama, Kazuhiro Maekawa, Takayuki Shimada, Mikio Katayama
  • Publication number: 20040021807
    Abstract: A color filter layer includes a first region and a second region, wherein the number of times that light used for display is transmitted through the color filter layer is different between the first region and the second region.
    Type: Application
    Filed: July 15, 2003
    Publication date: February 5, 2004
    Applicant: Sharp Kabushiki Kaisha
    Inventors: Yozo Narutaki, Masumi Kubo, Shogo Fujioka, Takayuki Shimada, Mikio Katayama, Youjii Yoshimura, Yutaka Ishii
  • Patent number: 6624860
    Abstract: A color filter layer includes a first region and a second region, wherein the number of times that light used for display is transmitted through the color filter layer is different between the first region and the second region.
    Type: Grant
    Filed: October 25, 2000
    Date of Patent: September 23, 2003
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Yozo Narutaki, Masumi Kubo, Shogo Fujioka, Takayuki Shimada, Mikio Katayama, Youji Yoshimura, Yutaka Ishii
  • Publication number: 20030117551
    Abstract: The liquid crystal display device includes a first substrate, a second substrate, a liquid crystal layer interposed between the first and second substrates, and a plurality of picture-element regions for providing display. Each of the plurality of picture-element regions has a transmission region for providing display in a transmission mode by using light incident through the first substrate, and a reflection region for providing display in a reflection mode by using light incident through the second substrate. The second substrate has a color filter layer provided in the transmission region and the reflection region. The thickness of the color filter layer in at least a part of the reflection region is smaller than the thickness of the color filter layer in the transmission region.
    Type: Application
    Filed: October 2, 2002
    Publication date: June 26, 2003
    Inventors: Kohichi Fujimori, Yozo Narutaki
  • Publication number: 20030063244
    Abstract: A liquid crystal display device of the present invention includes: a first substrate; a second substrate; a liquid crystal layer provided between the first substrate and the second substrate; and a plurality of picture element regions for displaying an image. Each of the plurality of picture element regions includes a transmission region in which an image is displayed in a transmission mode by using light that is coming from the side of the first substrate, and a reflection region in which an image is displayed in a reflection mode by using light that is coming from the side of the second substrate. The height of a surface of the second substrate on the side closer to the liquid crystal layer in the reflection region is greater than that in the transmission region, while the height of a surface of the first substrate on the side closer to the liquid crystal layer in the reflection region is substantially equal to that in the transmission region.
    Type: Application
    Filed: October 1, 2002
    Publication date: April 3, 2003
    Applicant: SHARP KABUSHIKI KAISHA
    Inventors: Kohichi Fujimori, Yozo Narutaki, Yasunobu Akebi, Ikuji Konishi
  • Publication number: 20030052869
    Abstract: A display includes in each of display areas: a reflective area containing a non-light-emitting display element for effecting a display by means of a liquid crystal display element reflecting external light; and a light-emitting area containing a light-emitting display element for effecting a display by means of an organic EL element directly modulating external light, the reflective area and the light-emitting area being ordered in some manner. The display further includes a first substrate and a second substrate positioned opposite to each other, and the light-modulating element and the light-emitting element are both provided between the first substrate and the second substrate. Thus, a display and a method of manufacturing thereof can be offered which allows for reduction in size and cost and delivers excellent visibility from outdoors to indoors.
    Type: Application
    Filed: September 5, 2002
    Publication date: March 20, 2003
    Applicant: SHARP KABUSHIKI KAISHA
    Inventors: Aklyoshi Fujii, Akihito Jinda, Yozo Narutaki
  • Publication number: 20020163615
    Abstract: A liquid crystal display device includes a pair of opposite substrates, and a liquid crystal layer as a display medium disposed between said substrates. The pair of substrates are adhered together by a resin sealing material disposed on the periphery portion of at least one of the substrates at the prescribed gap, and an outflow preventing portion having a plurality of concave portions is provided so that at least a part of the outflow preventing portion overlaps with the sealing material.
    Type: Application
    Filed: April 18, 2002
    Publication date: November 7, 2002
    Applicant: Sharp Kabushiki Kaisha
    Inventors: Kazuyoshi Fujioka, Yozo Narutaki, Hisashi Nagata, Kazushige Miyamoto, Takayuki Shimada
  • Patent number: 6452654
    Abstract: A liquid crystal display device according to the present invention includes a first substrate, a second substrate, and a liquid crystal layer interposed between the first substrate and the second substrate. The first substrate includes: a plurality of gate lines; a plurality of source lines arranged to cross with the plurality of gate lines; a plurality of switching elements disposed in the vicinity of crossings of the plurality of gate lines and the plurality of source lines; and a plurality of pixel electrodes connected to the plurality of switching elements. The second substrate includes a counter electrode. A plurality of pixel regions are defined by the plurality of pixel electrodes, the counter electrode, and the liquid crystal layer interposed between the plurality of pixel electrodes and the counter electrode, and each of the plurality of pixel regions includes a reflection region and a transmission region.
    Type: Grant
    Filed: December 20, 2000
    Date of Patent: September 17, 2002
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Masumi Kubo, Yozo Narutaki, Atsushi Ban, Takayuki Shimada, Yoji Yoshimura, Mikio Katayama, Yutaka Ishii, Hirohiko Nishiki