Patents Assigned to D.D. Tech, Inc.
  • Polymer assemble liquid crystal used in liquid crystal display
    Patent number: 6579470
    Abstract: A polymer assemble liquid crystal includes equal to or less than 40 wt % of a liquid crystal mixture of ferroelectric and antiferroelectric liquid crystals and equal to or more than 60 wt % of a polymer. The polymer is obtained by polymerizing urethane acrylate oligomer and (meth)acrylate. A ratio of the ferroelectric liquid crystal to the antiferroelectric liquid crystal in the liquid crystal mixture is about 3:1.
    Type: Grant
    Filed: June 27, 2000
    Date of Patent: June 17, 2003
    Assignee: D.D. Tech, Inc.
    Inventor: Young-Jae Jeon