Patent · US Expired

Ferroelectric liquid crystal cell

US5078477A · kind A · utility

34Cited by
1References
1Claims
0Family size

Assignee

Inventors

Key dates

Filing dateNov 8, 1989
Grant dateJan 7, 1992
Priority date
Expiry dateNov 8, 2009

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG02F1/1416
  • WIPO fieldOptics
  • WIPO sectorInstruments

Abstract

A ferroelectric liquid crystal cell comprising a ferroelectric liquid crystal having an antiferro-electric phase (S.sub.m C.sub.A.sup.*) or its composition and a pair of substrates having electrodes and holding said liquid crystal or its composition therebetween, characterized in that the layer structure of said liquid crystal in the antiferro-electric phase (S.sub.m C.sub.A.sup.*) has once been changed from a chevron structure to a bookshelf structure by application of a voltage to the electrodes.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.