Patents by Inventor Dong-Hyeok LIM

Dong-Hyeok LIM 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).

  • Patent number: 10950680
    Abstract: A light-emitting display device includes a substrate having a plurality of subpixels; a first electrode provided in each of the subpixels; a bank defining an emission part in each of the subpixels and having an upper surface that has a larger degree of surface roughness than an upper surface of the first electrode; a first common layer over the subpixels and covering the first electrode and the bank; a light-emitting layer on the first common layer and corresponding to the emission part of each of the subpixels; and a second common layer and a second electrode stacked on the light-emitting layer over the plurality of subpixels.
    Type: Grant
    Filed: June 26, 2019
    Date of Patent: March 16, 2021
    Assignee: LG DISPLAY CO., LTD.
    Inventors: Dong-Hyeok Lim, Song-Yi Jeong, Kyu-Il Han, Nam-Seok Yoo, Yu-Ri Park
  • Publication number: 20200212123
    Abstract: Disclosed are a light emitting display device and a method for manufacturing the same. The light emitting display device changes a configuration of common layers disposed in edge areas and can thus satisfy structural characteristics of a narrow bezel and prevent light leakage generated around the edge areas.
    Type: Application
    Filed: December 23, 2019
    Publication date: July 2, 2020
    Applicant: LG Display Co., Ltd.
    Inventors: Dong-Hyeok LIM, Min-Chul JUN
  • Publication number: 20200006458
    Abstract: A light-emitting display device includes a substrate having a plurality of subpixels; a first electrode provided in each of the subpixels; a bank defining an emission part in each of the subpixels and having an upper surface that has a larger degree of surface roughness than an upper surface of the first electrode; a first common layer over the subpixels and covering the first electrode and the bank; a light-emitting layer on the first common layer and corresponding to the emission part of each of the subpixels; and a second common layer and a second electrode stacked on the light-emitting layer over the plurality of subpixels.
    Type: Application
    Filed: June 26, 2019
    Publication date: January 2, 2020
    Applicant: LG Display Co., Ltd.
    Inventors: Dong-Hyeok LIM, Song-Yi JEONG, Kyu-Il HAN, Nam-Seok YOO, Yu-Ri PARK
  • Publication number: 20190207122
    Abstract: Provided are an organic light emitting device with improved UV lifespan, based on changed configuration of an electron transport layer, and an organic light emitting display including the same.
    Type: Application
    Filed: December 11, 2018
    Publication date: July 4, 2019
    Inventors: Dong-Hyeok LIM, Jin-Ho PARK
  • Patent number: 9385345
    Abstract: Disclosed herein are an organic light emitting display device includes first to third sub-pixels realizing different colors, wherein each of the first to third sub-pixels includes first and second electrodes disposed on a substrate so as to face each other, an emission layer formed between the first and second electrodes, a multi-layered hole transporting layer formed between the first electrode and the emission layer to be in contact with the first electrode and the emission layer, and an electron transporting layer formed between the second electrode and the emission layer, wherein multi-layered hole transporting layer of at least one of the first to third sub-pixels includes an at least two-layered first hole transporting layer formed of a hole host and a p-type dopant having a doping concentration of 1 to 10% and a second hole transporting layer formed of the hole host.
    Type: Grant
    Filed: December 19, 2013
    Date of Patent: July 5, 2016
    Assignee: LG DISPLAY CO., LTD.
    Inventors: Heui-Dong Lee, Kwan-Soo Kim, Dae-Gwon Song, Jin-Ho Park, Sung-Ji Yoon, Dong-Hyeok Lim
  • Publication number: 20140183493
    Abstract: Disclosed herein are an organic light emitting display device includes first to third sub-pixels realizing different colors, wherein each of the first to third sub-pixels includes first and second electrodes disposed on a substrate so as to face each other, an emission layer formed between the first and second electrodes, a multi-layered hole transporting layer formed between the first electrode and the emission layer to be in contact with the first electrode and the emission layer, and an electron transporting layer formed between the second electrode and the emission layer, wherein multi-layered hole transporting layer of at least one of the first to third sub-pixels includes an at least two-layered first hole transporting layer formed of a hole host and a p-type dopant having a doping concentration of 1 to 10% and a second hole transporting layer formed of the hole host.
    Type: Application
    Filed: December 19, 2013
    Publication date: July 3, 2014
    Applicant: LG Display Co., Ltd.
    Inventors: Heui-Dong LEE, Kwan-Soo KIM, Dae-Gwon SONG, Jin-Ho PARK, Sung-Ji YOON, Dong-Hyeok LIM