Patents by Inventor Ken-Ichirou Naka

Ken-Ichirou Naka 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: 8289483
    Abstract: A semi-transmissive-type liquid crystal display device is provided which is capable of preventing an electric erosion reaction between a reflective film made of Al (aluminum) or an Al alloy and a transparent electrode film made of ITO or a like (Indium Tin Oxide) and of inhibiting occurrence of a flicker caused by a residual DC (Direct Current) voltage in the reflective film. In the semi-transmissive-type of a liquid crystal display device, a transmissive region to provide light from a backlight source and a reflective region to receive ambient light are placed in a pixel region and a transparent electrode film is formed above a reflective film formed in the reflective region on an active matrix substrate with a second passivation film being interposed between the reflective film and the transparent electrode film.
    Type: Grant
    Filed: August 11, 2011
    Date of Patent: October 16, 2012
    Assignee: NLT Technologies, Ltd.
    Inventors: Mamoru Okamoto, Michiaki Sakamoto, Osamu Sukegawa, Ken-Ichirou Naka, Shin-ichi Nakata, Masami Yamashita
  • Publication number: 20120034721
    Abstract: A semi-transmissive-type liquid crystal display device is provided which is capable of preventing an electric erosion reaction between a reflective film made of Al (aluminum) or an Al alloy and a transparent electrode film made of ITO or a like (Indium Tin Oxide) and of inhibiting occurrence of a flicker caused by a residual DC (Direct Current) voltage in the reflective film. In the semi-transmissive-type of a liquid crystal display device, a transmissive region to provide light from a backlight source and a reflective region to receive ambient light are placed in a pixel region and a transparent electrode film is formed above a reflective film formed in the reflective region on an active matrix substrate with a second passivation film being interposed between the reflective film and the transparent electrode film.
    Type: Application
    Filed: August 11, 2011
    Publication date: February 9, 2012
    Applicant: NEC LCD TECHNOLOGIES, LTD.
    Inventors: Mamoru Okamoto, Michiaki Sakamoto, Osamu Sukegawa, Ken-Ichirou Naka, Shin-ichi Nakata, Masami Yamashita
  • Patent number: 8089589
    Abstract: A semi-transmissive-type liquid crystal display device is provided which is capable of preventing an electric erosion reaction between a reflective film made of Al (aluminum) or an Al alloy and a transparent electrode film made of ITO or a like (Indium Tin Oxide) and of inhibiting occurrence of a flicker caused by a residual DC (Direct Current) voltage in the reflective film. In the semi-transmissive-type of a liquid crystal display device, a transmissive region to provide light from a backlight source and a reflective region to receive ambient light are placed in a pixel region and a transparent electrode film is formed above a reflective film formed in the reflective region on an active matrix substrate with a second passivation film being interposed between the reflective film and the transparent electrode film.
    Type: Grant
    Filed: April 20, 2006
    Date of Patent: January 3, 2012
    Assignee: NLT Technologies, Ltd.
    Inventors: Mamoru Okamoto, Michiaki Sakamoto, Osamu Sukegawa, Ken-Ichirou Naka, Shin-Ichi Nakata, Masami Yamashita
  • Patent number: 7755597
    Abstract: A liquid crystal display device is provided which is capable of reducing a number of components and fabricating processes and of realizing a bright display even at time of a transmissive display and of simplifying configurations of a data signal. Transistors are controlled ON/OFF based on selecting signals input to selecting signal lines and a one kind of data signal input from data lines distributed and supplied, as a sub-pixel data, to a data electrode selected based on selecting signals corresponding to a successive additive color mixture or juxtapositional additive color mixture process. At time of the transmissive display operation, data electrodes corresponding to three sub-pixels making up each pixel are simultaneously selected and, at time of the reflective display operation, data electrodes selected based on selecting signal corresponding to the juxtapositional additive color mixture.
    Type: Grant
    Filed: February 17, 2006
    Date of Patent: July 13, 2010
    Assignee: NEC LCD Technologies, Ltd.
    Inventors: Ken-Ichirou Naka, Michiaki Sakamoto
  • Publication number: 20060187392
    Abstract: A semi-transmissive-type liquid crystal display device is provided which is capable of preventing an electric erosion reaction between a reflective film made of Al (aluminum) or an Al alloy and a transparent electrode film made of ITO or a like (Indium Tin Oxide) and of inhibiting occurrence of a flicker caused by a residual DC (Direct Current) voltage in the reflective film. In the semi-transmissive-type of a liquid crystal display device, a transmissive region to provide light from a backlight source and a reflective region to receive ambient light are placed in a pixel region and a transparent electrode film is formed above a reflective film formed in the reflective region on an active matrix substrate with a second passivation film being interposed between the reflective film and the transparent electrode film.
    Type: Application
    Filed: April 20, 2006
    Publication date: August 24, 2006
    Applicant: NEC LCD Technologies, Ltd.
    Inventors: Mamoru Okamoto, Michiaki Sakamoto, Osamu Sukegawa, Ken-Ichirou Naka, Shin-Ichi Nakata, Masami Yamashita
  • Publication number: 20060187183
    Abstract: A liquid crystal display device is provided which is capable of reducing a number of components and fabricating processes and of realizing a bright display even at time of a transmissive display and of simplifying configurations of a data signal. Transistors are controlled ON/OFF based on selecting signals input to selecting signal lines and a one kind of data signal input from data lines distributed and supplied, as a sub-pixel data, to a data electrode selected based on selecting signals corresponding to a successive additive color mixture or juxtapositional additive color mixture process. At time of the transmissive display operation, data electrodes corresponding to three sub-pixels making up each pixel are simultaneously selected and, at time of the reflective display operation, data electrodes selected based on selecting signal corresponding to the juxtapositional additive color mixture.
    Type: Application
    Filed: February 17, 2006
    Publication date: August 24, 2006
    Applicant: NEC LCD TECHNOLOGIES LTD.
    Inventors: Ken-Ichirou Naka, Michiaki Sakamoto
  • Patent number: 7064799
    Abstract: A semi-transmissive-type liquid crystal display device is provided which is capable of preventing an electric erosion reaction between a reflective film made of Al (aluminum) or an Al alloy and a transparent electrode film made of ITO or a like (Indium Tin Oxide) and of inhibiting occurrence of a flicker caused by a residual DC (Direct Current) voltage in the reflective film. In the semi-transmissive-type of a liquid crystal display device, a transmissive region to provide light from a backlight source and a reflective region to receive ambient light are placed in a pixel region and a transparent electrode film is formed above a reflective film formed in the reflective region on an active matrix substrate with a second passivation film being interposed between the reflective film and the transparent electrode film.
    Type: Grant
    Filed: July 8, 2003
    Date of Patent: June 20, 2006
    Assignee: NEC LCD Technologies, Ltd.
    Inventors: Mamoru Okamoto, Michiaki Sakamoto, Osamu Sukegawa, Ken-Ichirou Naka, Shin-Ichi Nakata, Masami Yamashita
  • Publication number: 20050030450
    Abstract: A semi-transmissive-type liquid crystal display device is provided which is capable of preventing an electric erosion reaction between a reflective film made of Al (aluminum) or an Al alloy and a transparent electrode film made of ITO or a like (Indium Tin Oxide) and of inhibiting occurrence of a flicker caused by a residual DC (Direct Current) voltage in the reflective film. In the semi-transmissive-type of a liquid crystal display device, a transmissive region to provide light from a backlight source and a reflective region to receive ambient light are placed in a pixel region and a transparent electrode film is formed above a reflective film formed in the reflective region on an active matrix substrate with a second passivation film being interposed between the reflective film and the transparent electrode film.
    Type: Application
    Filed: July 8, 2003
    Publication date: February 10, 2005
    Inventors: Mamoru Okamoto, Michiaki Sakamoto, Osamu Sukegawa, Ken-Ichirou Naka, Shin-Ichi Nakata, Masami Yamashita