×

LIQUID CRYSTAL DISPLAY

  • US 3,837,729 A
  • Filed: 05/14/1973
  • Issued: 09/24/1974
  • Est. Priority Date: 05/14/1973
  • Status: Expired due to Term
First Claim
Patent Images

1. A liquid crystal electro-optical display comprising a layer of liquid crystal material of positive dielectric anisotropy disposed between front and rear transparent parallel plates, both of said plates being coated with films of transparent conducting material on the sides thereof facing said liquid crystal layer, the films of transparent conducting material on said front plate being on only selected areas thereof, means for effecting a twisted nematic structure in said layer of liquid crystal material, a polarizer on the side of said layer of liquid crystal material adjacent said front plate, said polarizer being the only one in said display, and a reflector assembly disposed on the other side of said layer of liquid crystal material adjacent said rear plate, the reflector assembly being such as to cause at least a portion of the light passing through areas of the front plate not coated with the conducting material to be returned from the reflector assembly so as to intersect an area of the front plate which is coated with conducting material.

View all claims
  • 0 Assignments
Timeline View
Assignment View
    ×
    ×