Patent · US Expired

Fluorescent liquid crystal display devices

US4425029A · kind A · utility

18Cited by
4References
4Claims
0Family size

Assignee

Inventors

Key dates

Filing dateMar 23, 1981
Grant dateJan 10, 1984
Priority date
Expiry dateMar 23, 2001

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG02F1/13762
  • WIPO fieldOptics
  • WIPO sectorInstruments

Abstract

A fluorescent liquid crystal display of the type for reflecting radiation comprises a fluorescent material contained within a liquid crystal material for providing fluorescence in response to absorbance, and a filter element for reflecting at least one of the fluorescence and the absorbance and, if necessary, for showing low reflection in connection with radiation except for the at least one of the fluorescence and the absorbance to thereby enhance display contrast of the display.

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