Patents by Inventor Sungkoo HAN

Sungkoo HAN 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).

  • Method of and device for controlling reflective color of polymeric colloidal photonic crystal display using mixed dispersion medium
    Patent number: 9563098
    Abstract: A method of and device for controlling a reflective color of a photonic crystal display device, capable of precisely controlling the distance between particles to display RGB full colors covering desired wavelength ranges. The method and device include using a mixed dispersion medium containing two or more kinds of solvents having different dielectric constants as a dispersion medium for a photonic crystal in a composition for a photonic crystal display device of which colors are controlled through the application of an electric field.
    Type: Grant
    Filed: July 17, 2014
    Date of Patent: February 7, 2017
    Assignees: Samsung Electronics Co., Ltd, Industry-Academia Cooperation Group of Sejong University
    Inventors: Kyunghoon Cha, Wonmok Lee, Jongin Lee, Sungkoo Han, Kyeonghyeon Ko
  • METHOD OF AND DEVICE FOR CONTROLLING REFLECTIVE COLOR OF POLYMERIC COLLOIDAL PHOTONIC CRYSTAL DISPLAY USING MIXED DISPERSION MEDIUM
    Publication number: 20150022877
    Abstract: A method of and device for controlling a reflective color of a photonic crystal display device, capable of precisely controlling the distance between particles to display RGB full colors covering desired wavelength ranges. The method and device include using a mixed dispersion medium containing two or more kinds of solvents having different dielectric constants as a dispersion medium for a photonic crystal in a composition for a photonic crystal display device of which colors are controlled through the application of an electric field.
    Type: Application
    Filed: July 17, 2014
    Publication date: January 22, 2015
    Inventors: Kyunghoon CHA, Wonmok LEE, Jongin LEE, Sungkoo HAN, Kyeonghyeon KO