Patents Assigned to Nemoptic S.A.
  • Liquid crystal device comprising anchoring means on at least one confinement plate providing a degenerated orientation
    Patent number: 6452573
    Abstract: The present invention relates to a liquid crystal display device comprising a liquid crystal material sandwiched between two confinement plates (1, 2), the device being characterized by the fact that at least one of the plates (2) is provided with treatment which defines degenerate or nearly degenerate azimuth anchoring without azimuth orientation memory.
    Type: Grant
    Filed: April 16, 1999
    Date of Patent: September 17, 2002
    Assignee: Nemoptic, S.A.
    Inventors: Philippe Martinot-Lagarde, Ivan Dozov, Eric Polossat, Eric Raspaud, Philippe Auroy, Olivier Ou Ramdane, Georges Durand, Sandrine Forget
  • Bistable liquid crystal display device in which nematic liquid crystal has monostable anchorings
    Patent number: 6327017
    Abstract: A display device including two parallel transparent plates (10, 12) having transparent electrodes on the inner surfaces thereof and containing a liquid crystal material (20). The device includes means defining a monostable anchoring for each plate (10, 12), means (40) controllable to break at least one of the anchorings, and means for thereafter inducing volume bistability.
    Type: Grant
    Filed: September 14, 1998
    Date of Patent: December 4, 2001
    Assignee: Nemoptic S.A.
    Inventors: Ricardo Barberi, Ivan Dozov, Georges Durand, Philippe Martinot-Lagarde, Maurizio Nobili, Eric Polossat, Ioannis Lelidis, Michele Giocondo