Patent · US Expired

Liquid crystal display device

US3982820A · kind A · utility

18Cited by
5References
4Claims
0Family size

Assignee

Inventors

Key dates

Filing dateAug 26, 1975
Grant dateSep 28, 1976
Priority date
Expiry dateAug 26, 1995

Classification

  • Technology area (CPC C)Chemistry; Metallurgy
  • CPC primaryC09K2323/053
  • WIPO fieldOptics
  • WIPO sectorInstruments

Abstract

A liquid crystal display device comprising a pair of transparent substrates each provided with a transparent conductive film on the interior surface, boron nitride coating layers disposed on inner surfaces of the substrates and the conductive films, and a liquid crystal material interposed between the coating layers, the boron nitride layer being given preferred directions for aligning the molecules of the liquid crystal material. This structure increases the chemical stability and improves the alignment of the molecules of the liquid crystal material to a great extent.

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