Patents by Inventor Ji-Yi Chou

Ji-Yi Chou 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).

  • Blue phase liquid crystal composition and method for forming blue phase liquid crystal
    Patent number: 8414794
    Abstract: A blue phase liquid crystal composition includes a chiral dopant, a positive liquid crystal component and a negative liquid crystal component. The positive liquid crystal component includes at least one positive liquid crystal material, has a positive dielectric anisotropy and has no blue phase properties with respect to the chiral dopant. In addition, the negative liquid crystal component includes at least one negative liquid crystal material, has a negative dielectric anisotropy and has no blue phase properties with respect to the chiral dopant, so that the blue phase liquid crystal composition has a dielectric anisotropy between 0.5 and 14 and a blue phase temperature range larger than 3° C.
    Type: Grant
    Filed: November 3, 2011
    Date of Patent: April 9, 2013
    Assignees: Feng Chia University, Chunghwa Picture Tubes, Ltd.
    Inventors: Hsin-Hung Liu, Hui-Yu Chen, Ji-Yi Chou, Jia-Liang Lai, Yu-Hsien Chen, Huai-An Li
  • BLUE PHASE LIQUID CRYSTAL COMPOSITION AND METHOD FOR FORMING BLUE PHASE LIQUID CRYSTAL
    Publication number: 20120273721
    Abstract: A blue phase liquid crystal composition includes a chiral dopant, a positive liquid crystal component and a negative liquid crystal component. The positive liquid crystal component includes at least one positive liquid crystal material, has a positive dielectric anisotropy and has no blue phase properties with respect to the chiral dopant. In addition, the negative liquid crystal component includes at least one negative liquid crystal material, has a negative dielectric anisotropy and has no blue phase properties with respect to the chiral dopant, so that the blue phase liquid crystal composition has a dielectric anisotropy between 0.5 and 14 and a blue phase temperature range larger than 3° C.
    Type: Application
    Filed: November 3, 2011
    Publication date: November 1, 2012
    Inventors: Hsin-Hung Liu, Hui-Yu Chen, Ji-Yi Chou, Jia-Liang Lai, Yu-Hsien Chen, Huai-An Li