Patents by Inventor Seiji Fanakura

Seiji Fanakura 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: 10011773
    Abstract: The present invention relates to a liquid crystal display device that includes a particular color filter containing a material containing chiral liquid crystals and a particular dye and/or pigment. The present invention provides a liquid crystal display device that can prevent a decrease in the voltage holding ratio (VHR) of a liquid crystal layer and solve the problem of display defects, such as white spots, variations in alignment, and burn-in. Because liquid crystal display devices according to the present invention characteristically prevent a decrease in the voltage holding ratio (VHR) of a liquid crystal layer and reduces the occurrence of display defects, such as burn-in, the liquid crystal display devices are particularly useful as liquid crystal display devices in IPS mode and FFS mode for active-matrix driving and can be applied to household electrical appliances, automobiles, production facilities, measuring and analytical instruments, and communication devices.
    Type: Grant
    Filed: June 3, 2014
    Date of Patent: July 3, 2018
    Assignee: DIC CORPORATION
    Inventors: Hidenari Akiyama, Isa Nishiyama, Seiji Fanakura, Katsunori Shimada
  • Publication number: 20160215217
    Abstract: The present invention relates to a liquid crystal display device that includes a particular color filter containing a material containing chiral liquid crystals and a particular dye and/or pigment. The present invention provides a liquid crystal display device that can prevent a decrease in the voltage holding ratio (VHR) of a liquid crystal layer and solve the problem of display defects, such as white spots, variations in alignment, and burn-in. Because liquid crystal display devices according to the present invention characteristically prevent a decrease in the voltage holding ratio (VHR) of a liquid crystal layer and reduces the occurrence of display defects, such as burn-in, the liquid crystal display devices are particularly useful as liquid crystal display devices in IPS mode and FFS mode for active-matrix driving and can be applied to household electrical appliances, automobiles, production facilities, measuring and analytical instruments, and communication devices.
    Type: Application
    Filed: June 3, 2014
    Publication date: July 28, 2016
    Applicant: DIC CORPORATION
    Inventors: Hidenari Akiyama, Isa Nishiyama, Seiji Fanakura, Katsunori Shimada