Patents by Inventor Victor C Hui

Victor C Hui 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).

  • Liquid crystal device
    Patent number: 7053975
    Abstract: Liquid crystal devices are described that exhibit bistable, tri-stable or other multistable operation. The stable liquid crystal configurations are attained using a surface alignment grating (144) on the internal surface of at least one cell wall (142). The surface profile of the surface alignment grating comprises three or more defect sites per grating period and permit the liquid crystal molecules to adopt any one of two or more stable pretilt angles in the same azimuthal plane. Application of a suitable voltage causes the liquid crystal material to switch between the stable configurations.
    Type: Grant
    Filed: July 18, 2001
    Date of Patent: May 30, 2006
    Assignee: ZBD Displays Limited
    Inventors: Emma L Wood, Guy P Bryan-Brown, Victor C Hui, John C Jones, Carl V Brown
  • Liquid crystal device
    Publication number: 20040191427
    Abstract: Liquid crystal devices are described that exhibit bistable, tri-stable or other multistable operation. The stable liquid crystal configurations are attained using a surface alignment grating (144) on the internal surface of at least one cell wall (142). The surface profile of the surface alignment grating comprises three or more defect sites per grating period and permit the liquid crystal molecules to adopt any one of two or more stable pretilt angles in the same azimuthal plane. Application of a suitable voltage causes the liquid crystal material to switch between the stable configurations.
    Type: Application
    Filed: October 16, 2003
    Publication date: September 30, 2004
    Inventors: Emma L Wood, Victor C Hui, John C Jones, Carl V Brown