×

Field effect mode liquid crystal display

  • US 4,521,080 A
  • Filed: 10/18/1982
  • Issued: 06/04/1985
  • Est. Priority Date: 07/01/1974
  • Status: Expired due to Term
First Claim
Patent Images

1. A liquid crystal display cell including a layer of liquid crystal material sandwiched between a pair of opposing parallel plates each carrying an electrode coating, said liquid crystal display cell further comprising:

  • a first micro groove structure consisting of a multiplicity of grooves provided at the interfacial surface of the electrode coating in contact with the liquid crystal layer for defining the direction of the liquid crystal molecules in the liquid crystal layer in the plane of said interfacial surface; and

    a second micro groove structure of a multiplicity of substantially saw-tooth micro grooves at the interfacial surface of the electrode coating in contact with the liquid crystal layer, said substantially saw-tooth micro grooves having a profile for defining the inclination of the liquid crystal molecules in the liquid crystal layer with respect to said plane of said interfacial surface.

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