Patents by Inventor Ji Woong Baek

Ji Woong Baek 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).

  • Layered structure for OLED device, method for manufacturing the same, and OLED device having the same
    Patent number: 9825258
    Abstract: A layered structure for an organic light-emitting diode (OLED) device, the layered structure including a light-transmissive substrate and an internal extraction layer formed on one side of the light-transmissive substrate, in which the internal extraction layer includes (1) a scattering area containing scattering elements composed of solid particles and pores, the solid particles having a density that decreases as it goes away from the interface with the light-transmissive substrate, and the pores having a density that increases as it goes away from the interface with the light-transmissive substrate, and (2) a free area where no scattering elements are present, formed from the surface of the internal extraction layer, which is opposite to the interface, to a predetermined depth.
    Type: Grant
    Filed: June 14, 2013
    Date of Patent: November 21, 2017
    Assignee: SAINT-GOBAIN GLASS FRANCE
    Inventors: Young Seong Lee, Jin Woo Han, Ji Woong Baek
  • LAYERED STRUCTURE FOR OLED DEVICE, METHOD FOR MANUFACTURING THE SAME, AND OLED DEVICE HAVING THE SAME
    Publication number: 20150179979
    Abstract: A layered structure for an organic light-emitting diode (OLED) device, the layered structure including a light-transmissive substrate and an internal extraction layer formed on one side of the light-transmissive substrate, in which the internal extraction layer includes (1) a scattering area containing scattering elements composed of solid particles and pores, the solid particles having a density that decreases as it goes away from the interface with the light-transmissive substrate, and the pores having a density that increases as it goes away from the interface with the light-transmissive substrate, and (2) a free area where no scattering elements are present, formed from the surface of the internal extraction layer, which is opposite to the interface, to a predetermined depth.
    Type: Application
    Filed: June 14, 2013
    Publication date: June 25, 2015
    Inventors: Young Seong Lee, Jin Woo Han, Ji Woong Baek
  • LAYERED STRUCTURE FOR OLED DEVICE, METHOD FOR MANUFACTURING THE SAME, AND OLED DEVICE HAVING THE SAME
    Publication number: 20150144900
    Abstract: A layered structure for an organic light-emitting diode (OLED) device, the layered structure including a light-transmissive substrate and an internal extraction layer formed on one side of the light-transmissive substrate, in which the internal extraction layer includes (1) a scattering area containing scattering elements composed of solid particles and pores, the solid particles having a density that decreases as it goes away from the interface with the light-transmissive substrate, and the pores having a density that increases as it goes away from the interface with the light-transmissive substrate, and (2) a free area where no scattering elements are present, formed from the surface of the internal extraction layer, which is opposite to the interface, to a predetermined depth.
    Type: Application
    Filed: June 14, 2013
    Publication date: May 28, 2015
    Applicant: SAINT-GOBAIN GLASS FRANCE
    Inventors: Young Seong Lee, Jin Woo Han, Ji Woong Baek