Patents Assigned to PEN Generations Inc.
  • Optical film and digital pen system using the same
    Patent number: 10078161
    Abstract: An optical film and a digital pen system using the same are provided. The optical film includes a film layer including a fine structure, a coating layer coated on the fine structure and having an infrared ray scattering property, and a matching layer laminated above or below the film layer and having a refractive index matching a refractive index of the fine structure within a predetermined error range.
    Type: Grant
    Filed: February 4, 2013
    Date of Patent: September 18, 2018
    Assignee: PEN Generations Inc.
    Inventor: Yong Hoon Kang
  • Liquid crystal display device and electronic pen system using same
    Patent number: 9588602
    Abstract: Disclosed herein are a liquid crystal display device and an electronic pen system using the same. The liquid crystal display device includes an infrared reflection layer configured to reflect infrared irradiated thereto, the infrared reflection layer including an information pattern having virtual grid lines and a plurality of marks; and a liquid crystal layer formed on the infrared reflection layer and configured to be changed an orientation of liquid crystal molecules by an external pressure.
    Type: Grant
    Filed: November 14, 2013
    Date of Patent: March 7, 2017
    Assignee: PEN Generations Inc.
    Inventor: Hee Hwan Kwak
  • LIQUID CRYSTAL DISPLAY DEVICE AND ELECTRONIC PEN SYSTEM USING SAME
    Publication number: 20150293614
    Abstract: Disclosed herein are a liquid crystal display device and an electronic pen system using the same. The liquid crystal display device includes an infrared reflection layer configured to reflect infrared irradiated thereto, the infrared reflection layer including an information pattern having virtual grid lines and a plurality of marks; and a liquid crystal layer formed on the infrared reflection layer and configured to be changed an orientation of liquid crystal molecules by an external pressure.
    Type: Application
    Filed: November 14, 2013
    Publication date: October 15, 2015
    Applicant: PEN Generations Inc.
    Inventor: Hee Hwan Kwak
  • OPTICAL FILM AND DIGITAL PEN SYSTEM USING THE SAME
    Publication number: 20150198751
    Abstract: An optical film and a digital pen system using the same are provided. The optical film includes a film layer including a fine structure, a coating layer coated on the fine structure and having an infrared ray scattering property, and a matching layer laminated above or below the film layer and having a refractive index matching a refractive index of the fine structure within a predetermined error range.
    Type: Application
    Filed: February 4, 2013
    Publication date: July 16, 2015
    Applicant: PEN Generations Inc.
    Inventor: Yong Hoon Kang