Patents by Inventor Yuko SHIROUCHI

Yuko SHIROUCHI 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: 10466396
    Abstract: A liquid crystal display device containing a color filter layer, and a light-emitting device which contains a light source and a color conversion layer containing a quantum dot; wherein the color filter layer at least contains a blue color filter, a green color filter and a red color filter, as defined in the specification; an emission spectrum of light emitted from the light-emitting device has a first emission peak, a second emission peak and a third emission peak; the wavelength (?1) of the first emission peak ranges from 420 to 480 nm, the wavelength (?2) of the second emission peak ranges from 500 to 550 nm, and the wavelength (?3) of the third emission peak ranges from 580 to 650 nm.
    Type: Grant
    Filed: March 23, 2015
    Date of Patent: November 5, 2019
    Assignee: SUMITOMO CHEMICAL COMPANY, LIMITED
    Inventors: Yuko Shirouchi, Yuji Akiyama
  • Publication number: 20170123120
    Abstract: A liquid crystal display device comprising: a color filter layer; and a light-emitting device which comprises a light source and a color conversion layer containing a quantum dot, wherein the color filter layer at least comprises a blue color filter, a green color filter and a red color filter, the red color filter is formed from a red-coloring composition comprising a coloring agent (AR), a binder (WR) and a solvent (ER) and meets the requirement represented by formula (Q1): 0.1?FR×CR?1.0 [wherein FR represents the thickness (?m) of the red color filter; and CR represents the ratio of the amount of the coloring agent (AR) to the total amount of the coloring agent (AR) and the binder (WR) in the red-coloring composition], the green color filter is formed from a green-coloring composition comprising a coloring agent (AG), a binder (WG) and a solvent (EG) and meets the requirement represented by formula (Q2): 0.1?FG×CG?1.
    Type: Application
    Filed: March 23, 2015
    Publication date: May 4, 2017
    Applicant: SUMITOMO CHEMICAL COMPANY, LIMITED
    Inventors: Yuko SHIROUCHI, Yuji AKIYAMA