Patents by Inventor Ji-yun Chun

Ji-yun Chun 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).

  • MASK, MASK ASSEMBLY INCLUDING THE MASK, AND METHDO OF FABRICATING DISPLAY DEVICE
    Publication number: 20240301543
    Abstract: A mask includes a plurality of deposition pattern portions, each of the plurality of deposition pattern portions including rib portions disposed between the plurality of deposition pattern portions. A plurality of openings is defined in each of the plurality of deposition pattern portions, the mask has a width in a first direction and a length in a second direction which intersects the first direction, sides of each of openings which are parallel to the first direction, among the plurality of openings, have a first taper angle, and the first taper angle is about 54 degrees or less.
    Type: Application
    Filed: November 15, 2023
    Publication date: September 12, 2024
    Inventors: Se Il KIM, Sang Min YI, Seung Jin LEE, Ji Yun CHUN
  • Novel anthracene typed compound and the organic electroluminescence display device using the same
    Publication number: 20100133996
    Abstract: The present invention relates to an anthracene compound and an organic electroluminescent display device using the same. Particularly, the present invention relates to an anthracene compound which has good blue light emitting property, transports holes and electrons efficiently to enable an organic electroluminescent display device to have a low voltage, high brightness and long lifetime, and an organic electroluminescent display device using the same.
    Type: Application
    Filed: May 7, 2008
    Publication date: June 3, 2010
    Applicant: Dongjin Semichem Co., Ltd
    Inventors: Hyoung-don Moon, Tae-jin Park, Hyun-cheol An, Jong-hyub Baek, Hoe-taek Yang, Sang-ook Kang, Won-sik Han, Kyung-ryang Wee, Ji-yun Chun