Patents by Inventor Jeong-Yoon Han

Jeong-Yoon Han 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).

  • PHOTO-ALIGNMENT POLYMER, ALIGNMENT LAYER AND LIQUID CRYSTAL RETARDATION FILM COMPRISING THE SAME
    Publication number: 20150210792
    Abstract: Disclosed herein is a photo-alignment polymer, which can be preferably applied to an alignment layer or the like of a three-dimensional display device because its alignment direction is easily changed depending on the polarization direction, and an alignment layer and liquid crystal retardation film including the same. The photo-alignment layer includes a cyclic olefin repeating unit substituted with one or more photoreactive groups, and has an absorbance ratio of 0.
    Type: Application
    Filed: September 5, 2013
    Publication date: July 30, 2015
    Inventors: Jeong Yoon Han, Dong Woo Yoo, Sung Kyoung Lee, Sung-Ho Chun, Dai Seung Choi
  • Photo-curable composition, optical anistropic film and its preparation method
    Patent number: 9052548
    Abstract: The present invention relates to a photo-curable composition that can provide a film, etc. showing excellent optical anisotropy even without need for separately forming a liquid crystal layer and an alignment layer, an optical anisotropic film using the same, and its preparation method. The photo-curable composition comprises a photo-alignable polymer, a noncrosslinkable liquid crystal compound and a photo-curable binder.
    Type: Grant
    Filed: November 26, 2012
    Date of Patent: June 9, 2015
    Assignee: LG CHEM, LTD.
    Inventors: Dai-Seung Choi, Dong-Woo Yoo, Sung-Ho Chun, Mi-Ra Hong, Jeong-Yoon Han, Hyeong-Bin Jang