Patents by Inventor YoonHo KWON

YoonHo KWON 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).

  • Prism sheet and liquid crystal display device having the same
    Patent number: 10054723
    Abstract: A prism sheet and a liquid crystal display (LCD) device having the same are provided to improve optical efficiency of the prism sheet by changing a refractive angle of light, which is incident at an angle less than a minimum angle to an effective angle, by forming a concave surface on a bottom surface of prism patterns. Optical efficiency of the prism sheet is also improved by refracting light, which is incident at an angle more than a maximum angle, toward the adjacent prism pattern, by forming the bottom surface of the 2nth prism pattern in a groove of a base film.
    Type: Grant
    Filed: November 30, 2015
    Date of Patent: August 21, 2018
    Assignee: LG Display Co., Ltd.
    Inventor: YoonHo Kwon
  • PRISM SHEET AND LIQUID CRYSTAL DISPLAY DEVICE HAVING THE SAME
    Publication number: 20160154147
    Abstract: A prism sheet and a liquid crystal display (LCD) device having the same are provided to improve optical efficiency of the prism sheet by changing a refractive angle of light, which is incident at an angle less than a minimum angle to an effective angle, by forming a concave surface on a bottom surface of prism patterns. Optical efficiency of the prism sheet is also improved by refracting light, which is incident at an angle more than a maximum angle, toward the adjacent prism pattern, by forming the bottom surface of the 2nth prism pattern in a groove of a base film.
    Type: Application
    Filed: November 30, 2015
    Publication date: June 2, 2016
    Inventor: YoonHo KWON