Patents by Inventor Jae Geun Park

Jae Geun Park 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).

  • Cinnamate-containing photopolymer for orientation film of liquid crystal display (LCD) and method of forming the orientation film using the photopolymer
    Patent number: 5998101
    Abstract: The present invention provides novel photopolymers for use in liquid crystal display. The photopolymers are cinnamate-containing photopolymers wherein a mesogen, preferably containing a benzene ring, is introduced between a polyvinyl main chain and a cinnamate group, and also wherein the cinnamate group can be substituted with a cyanide group, an alkyl group, a halogen atom or a fluorocarbonyl group. The cinnamate-containing photopolymers have improved stability and photoelectric properties, and improved pre-tilt angle. The photopolymers can be used to form an orientation film for an LCD in a non-rubbing process, and can be used alone or with a cross linking agent.
    Type: Grant
    Filed: October 16, 1997
    Date of Patent: December 7, 1999
    Assignee: Samsung Display Devices Co., Ltd.
    Inventors: Jae Geun Park, Do Yun Kim, Hwan Jae Choi, Joo Young Kim