Patent · US Expired

Liquid crystal display device and preparation and use thereof

US5331448A · kind A · utility

3Cited by
2References
14Claims
0Family size

Assignee

Inventors

Key dates

Filing dateOct 5, 1992
Grant dateJul 19, 1994
Priority date
Expiry dateOct 5, 2012

Classification

  • Technology area (CPC C)Chemistry; Metallurgy
  • CPC primaryC09K19/544
  • WIPO fieldBasic materials chemistry
  • WIPO sectorChemistry

Abstract

A liquid crystal device having a pair of electrodes at least one of which is transparent and a mixture film of a side chain type liquid crystalline polymer and at least two low molecular weight liquid crystals which film is sandwiched between said pair of electrodes, wherein said mixture film contains 0.005 to 1% by weight of an electrolyte based on a total weight of the mixture film. This liquid crystal device has a high response speed and memory and is used in a variable traffic control sign, a light-adjusting window, a liquid crystal glare-proof mirror, and the like.

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