Patents Assigned to Teijim Limited
  • Patent number: 5378391
    Abstract: A liquid crystal film comprising a light-transmitting resin matrix and liquid crystal droplets dispersed therein, characterized in that(a) an average droplet diameter R (micrometers) of the liquid crystal droplets is 1 to 2.5 micrometers,(b) a thickness d (micrometers) of the liquid crystal film is 5 to 50 micrometers,(c) an applied voltage V.sub.0.7 (V) is less than 0.8 d when light transmittance is 70%,(d) a driving voltage V.sub.90 (V) in d=10 micrometers and an average droplet diameter R (micrometers) of the liquid crystal droplets meet the following relationshipV.sub.90 >1 (R-1.8).sup.2 +4,(e) saturated light transmittance (T.sub.100) in d=10 micrometers is at least 80% and light transmittance (T.sub.7V) in applying a voltage of 7 V is at least 90% of T.sub.100. Said liquid crystal film can be utilized in a liquid crystal display device.
    Type: Grant
    Filed: March 9, 1992
    Date of Patent: January 3, 1995
    Assignee: Teijim Limited
    Inventors: Kenji Nakatani, Satoshi Igarashi, Hiroo Inata, Horinori Matsuda