Patents by Inventor Vassili V. Sergan

Vassili V. Sergan 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-patterned pre-tilt liquid crystal cells, lenses and methods
    Patent number: 8654281
    Abstract: Liquid crystal cells and lenses having a variable resulting pre-tilt across two or more areas of the cell, and in particular, cells and lenses are provided wherein a resulting pre-tilt is varied across the cell according to any desired birefringence profile that can be utilized in liquid crystalline optical elements and liquid crystal displays. Methods of fabrication of the liquid crystal cells with variable resulting pre-tilt are disclosed.
    Type: Grant
    Filed: September 2, 2010
    Date of Patent: February 18, 2014
    Assignees: California State University, Sacramento, Kent State University
    Inventors: Philip Bos, Vassili V. Sergan, Tatiana A. Sergan
  • Photo-patterned pre-tilt liquid crystal cells, lenses and methods
    Publication number: 20110170039
    Abstract: Liquid crystal cells and lenses having a variable resulting pre-tilt across two or more areas of the cell, and in particular, cells and lenses are provided wherein a resulting pre-tilt is varied across the cell according to any desired birefringence profile that can be utilized in liquid crystalline optical elements and liquid crystal displays. Methods of fabrication of the liquid crystal cells with variable resulting pre-tilt are disclosed.
    Type: Application
    Filed: September 2, 2010
    Publication date: July 14, 2011
    Applicants: Kent State University, California State University
    Inventors: Philip Bos, Vassili V. Sergan, Tatiana A. Sergan