Patent · US Expired

Ferroelectric optical modulation device and driving method therefor wherein electrode has delaying function

US4747671A · kind A · utility

87Cited by
6References
38Claims
0Family size

Assignee

Inventors

Key dates

Filing dateNov 17, 1986
Grant dateMay 31, 1988
Priority date
Expiry dateNov 17, 2006

Classification

  • Technology area (CPC Y)Emerging Cross-Sectional Technologies
  • CPC primaryY10S359/90
  • WIPO fieldAudio-visual technology
  • WIPO sectorElectrical engineering

Abstract

An optical modulation device is disclosed, which includes: a first substrate having thereon a signal transmission electrode connected to a signal source and a first electrode having a delay function connected to the transmission electrode; a second substrate having thereon a second electrode disposed opposite to said first electrode; and an optical modulation material, particularly a ferroelectric liquid crystal, disposed between the first and second electrodes. An optical modulation system, particularly a gradational display system, utilizing the delay function is also disclosed.

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