Patents by Inventor Kimitaka Nomura

Kimitaka Nomura 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: 9041872
    Abstract: Provided is a switching liquid crystal panel and a display device that have novel structures that are capable of preventing luminous regions from appearing in the light transmitting parts, in the vicinities of boundaries thereof with the light shielding parts. The switching liquid crystal panel includes a pair of substrates (26a, 26b) having a twisted nematic type liquid crystal layer (24) interposed therebetween, and a plurality of light shield forming electrodes (30) that are formed on at least one of the pair of the substrates (26a, 26b) and that form light shielding parts (40) of a parallax barrier (16) in cooperation with a counter electrode (34) when a voltage is applied, the counter electrode (34) being is opposed to the light shield forming electrodes (30) with the liquid crystal layer (24) interposed therebetween.
    Type: Grant
    Filed: July 25, 2011
    Date of Patent: May 26, 2015
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Ryoh Kikuchi, Hiroshi Fukushima, Tomoo Takatani, Kimitaka Nomura
  • Patent number: 8872990
    Abstract: An arrangement with a shared polarizer disposed between two panels capable of displaying a 3D image using parallax barrier techniques is provided, where the quality of a displayed 3D image is prevented from decreasing due to the left-right imbalance in contrast ratio. The arrangement includes: a main panel; a switch panel for displaying a slit image serving as a parallax barrier; a polarizer located closer to the viewed side of the main panel; a polarizer located between the main panel and the switch panel; and a polarizer located closer to the side of the switch panel opposite the side closer to the main panel. The direction of rubbing for one of the alignment films of the switch panel is at an angle relative to the absorption axis of one of the polarizers such that a contrast ratio within a view range of the left and right eyes is equal to or higher than a reference value, the contrast ratio being measured on a visual line corresponding to the transmission axis of one of the polarizers.
    Type: Grant
    Filed: July 11, 2011
    Date of Patent: October 28, 2014
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Kimitaka Nomura, Tomoo Takatani, Hiroshi Fukushima, Ryoh Kikuchi
  • Publication number: 20130128163
    Abstract: Provided is a switching liquid crystal panel and a display device that have novel structures that are capable of preventing luminous regions from appearing in the light transmitting parts, in the vicinities of boundaries thereof with the light shielding parts. The switching liquid crystal panel includes a pair of substrates (26a, 26b) having a twisted nematic type liquid crystal layer (24) interposed therebetween, and a plurality of light shield forming electrodes (30) that are formed on at least one of the pair of the substrates (26a, 26b) and that form light shielding parts (40) of a parallax barrier (16) in cooperation with a counter electrode (34) when a voltage is applied, the counter electrode (34) being is opposed to the light shield forming electrodes (30) with the liquid crystal layer (24) interposed therebetween.
    Type: Application
    Filed: July 25, 2011
    Publication date: May 23, 2013
    Applicant: SHARP KABUSHIKI KAISHA
    Inventors: Ryoh Kikuchi, Hiroshi Fukushima, Tomoo Takatani, Kimitaka Nomura
  • Publication number: 20130107148
    Abstract: An arrangement with a shared polarizer disposed between two panels capable of displaying a 3D image using parallax barrier techniques is provided, where the quality of a displayed 3D image is prevented from decreasing due to the left-right imbalance in contrast ratio. The arrangement includes: a main panel; a switch panel for displaying a slit image serving as a parallax barrier; a polarizer located closer to the viewed side of the main panel; a polarizer located between the main panel and the switch panel; and a polarizer located closer to the side of the switch panel opposite the side closer to the main panel. The direction of rubbing for one of the alignment films of the switch panel is at an angle relative to the absorption axis of one of the polarizers such that a contrast ratio within a view range of the left and right eyes is equal to or higher than a reference value, the contrast ratio being measured on a visual line corresponding to the transmission axis of one of the polarizers.
    Type: Application
    Filed: July 11, 2011
    Publication date: May 2, 2013
    Applicant: SHARP KABUSHIKI KAISHA
    Inventors: Kimitaka Nomura, Tomoo Takatani, Hiroshi Fukushima, Ryoh Kikuchi
  • Patent number: 7019803
    Abstract: A color liquid crystal display panel includes: a first substrate provided on a light source side; a second substrate provided on a viewer side so as to oppose the first substrate; a liquid crystal layer provided between the first substrate and the second substrate; a color filter layer provided between the first substrate and the second substrate; a first transflective film provided closer to the light source than the liquid crystal layer and the color filter layer for reflecting ambient light coming from the viewer side while transmitting therethrough light-source light coming from the light source side; and a second transflective film provided closer to the viewer than the color filter layer for reflecting the ambient light while transmitting therethrough the light-source light.
    Type: Grant
    Filed: May 14, 2004
    Date of Patent: March 28, 2006
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Takeyuki Ashida, Kimitaka Nomura
  • Publication number: 20040227878
    Abstract: A color liquid crystal display panel includes: a first substrate provided on a light source side; a second substrate provided on a viewer side so as to oppose the first substrate; a liquid crystal layer provided between the first substrate and the second substrate; a color filter layer provided between the first substrate and the second substrate; a first transflective film provided closer to the light source than the liquid crystal layer and the color filter layer for reflecting ambient light coming from the viewer side while transmitting therethrough light-source light coming from the light source side; and a second transflective film provided closer to the viewer than the color filter layer for reflecting the ambient light while transmitting therethrough the light-source light.
    Type: Application
    Filed: May 14, 2004
    Publication date: November 18, 2004
    Applicant: Sharp Kabushiki Kaisha
    Inventors: Takeyuki Ashida, Kimitaka Nomura