Patent · US Expired

Smectic liquid crystal display device without a nematic phase

US4464020A · kind A · utility

7Cited by
8References
5Claims
0Family size

Assignee

Inventors

Key dates

Filing dateAug 20, 1982
Grant dateAug 7, 1984
Priority date
Expiry dateAug 20, 2002

Classification

  • Technology area (CPC C)Chemistry; Metallurgy
  • CPC primaryC09K19/58
  • WIPO fieldBasic materials chemistry
  • WIPO sectorChemistry

Abstract

The invention relates to matrix access display devices using a mixed thermal and electric effect and provides a display device with mixed thermal-electric drive using a smectic liquid crystal deprived of a nematic phase by addition of appropriate dopes.

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