Patents by Inventor Choi Sang Un

Choi Sang Un 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 display with polymer aligned-film
    Publication number: 20010012082
    Abstract: The arrangement of the moleculars of the optical activity compound such as polymer including azo-dye is changed by the polarization state of the pump beam applied to the polymer. The polymer is polyvinyl alcohol including methyl orange as azo-dye. The anisotropy of the molecular arrangement of the azo-dye is induced by the polarized incident beam and then the liquid crystal cell is made. Thereafter, the liquid crystal is inserted to the cell, aligning the liquid crystal.
    Type: Application
    Filed: April 2, 2001
    Publication date: August 9, 2001
    Inventors: Choi Sang Un, Kim Tae Kwon