Patent · US Expired

Electrophoretic display device using a liquid crystal as a threshold device

US4305807A · kind A · utility

134Cited by
10References
7Claims
0Family size

Assignee

Inventor

Key dates

Filing dateMar 13, 1980
Grant dateDec 15, 1981
Priority date
Expiry dateMar 13, 2000

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG02F1/167
  • WIPO fieldOptics
  • WIPO sectorInstruments

Abstract

An electrophoretic display device using liquid crystals as the display elements is disclosed. Such elements provide superior threshold characteristics and enable the creation of an improved matrix display.

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