Patent · US Expired

Driving ferroelectric liquid crystal printers via short circuiting

US4712876A · kind A · utility

9Cited by
7References
2Claims
0Family size

Assignee

Inventors

Key dates

Filing dateJul 5, 1985
Grant dateDec 15, 1987
Priority date
Expiry dateJul 5, 2005

Classification

  • Technology area (CPC Y)Emerging Cross-Sectional Technologies
  • CPC primaryY10S359/90
  • WIPO fieldOptics
  • WIPO sectorInstruments

Abstract

In a driving method of an optical switch element for controlling a quantity of transmission light between opposed electrodes by interposing a transparent, high dielectric material between the opposed electrodes and applying a positive or negative voltage between the opposed electrodes, the improvement wherein a period in which the opposed electrodes are substantially short-circuited is disposed in order to make it possible to either reduce or eliminate stored charge.

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