Patent · US Expired

Field sequential color display system using optical retardation

US4582396A · kind A · utility

192Cited by
17References
31Claims
0Family size

Assignee

Inventors

Key dates

Filing dateMay 9, 1983
Grant dateApr 15, 1986
Priority date—
Expiry dateMay 9, 2003

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG02F1/03
  • WIPO fieldOptics
  • WIPO sectorInstruments

Abstract

A field sequential color display system incorporates a color switch which includes a zero to half-wave optical retarder and pleochroic filters to provide an image with high color contrast and resolution over a broad range of display sizes. In a preferred embodiment, a liquid crystal cell which operates between two states of optical retardation comprises the variable retarder to provide a color switch with substantially reduced optical response times.

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