Patent · US Expired

Smectic liquid crystal color display screen

US4593978A · kind A · utility

243Cited by
3References
5Claims
0Family size

Assignee

Inventors

Key dates

Filing dateMar 19, 1984
Grant dateJun 10, 1986
Priority date
Expiry dateMar 19, 2004

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG02F1/134336
  • WIPO fieldOptics
  • WIPO sectorInstruments

Abstract

Smectic liquid crystal display screens for displaying a color image. The object of the invention is to obtain a color image from filtering layers deposited on the electrodes of a matrix display screen, the configuration of the electrodes supporting these layers being such that it avoids phenomena of interlineation of the colors.

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