Patents by Inventor Yang-Sik Youn

Yang-Sik Youn 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).

  • OLED display apparatus and preparation method thereof
    Patent number: 10008687
    Abstract: This disclosure relates to an OLED display apparatus and the preparation method thereof. The OLED display apparatus comprises, from the bottom to the top, a substrate, an OLED device, a thin film inner layer, an ethylcellulose layer, and a thin film outer layer. By adding a hydrophobic ethylcellulose layer with a photosensitive material and a singlet oxygen receptor dissolved therein on the basis of current thin film packaging, this invention can have the functions of water vapor barrier and oxygen absorption so as to improve the service life of devices.
    Type: Grant
    Filed: May 11, 2016
    Date of Patent: June 26, 2018
    Assignees: BOE TECHNOLOGY GROUP CO., LTD., HEFEI BOE OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventors: Yajun Li, Yang-Sik Youn, Zhihai Zhang
  • OLED DISPLAY APPARATUS AND PREPARATION METHOD THEREOF
    Publication number: 20180062108
    Abstract: This disclosure relates to an OLED display apparatus and the preparation method thereof. The OLED display apparatus comprises, from the bottom to the top, a substrate, an OLED device, a thin film inner layer, an ethylcellulose layer, and a thin film outer layer. By adding a hydrophobic ethylcellulose layer with a photosensitive material and a singlet oxygen receptor dissolved therein on the basis of current thin film packaging, this invention can have the functions of water vapor barrier and oxygen absorption so as to improve the service life of devices.
    Type: Application
    Filed: May 11, 2016
    Publication date: March 1, 2018
    Inventors: Yajun Li, Yang-Sik Youn, Zhihai Zhang