Patents Assigned to Kent Display Systems, Inc.
  • Bistable cholesteric liquid crystal displays with very high contrast and excellent mechanical stability
    Patent number: 5570216
    Abstract: A structurally stabilized bistable cholesteric display. The display has a back plate and a front plate with a liquid crystal material disposed therebetween. The liquid crystal material is homeotropically aligned at least at the substrate and is held in alignment by a securement matrix forming agent. The material is thermally annealed to align the helix axis of the liquid crystal molecules parallel to the substrates and a polymer may be used to secure the molecules in this position.
    Type: Grant
    Filed: April 14, 1995
    Date of Patent: October 29, 1996
    Assignee: Kent Display Systems, Inc.
    Inventors: Minhua Lu, Haiji Yuan