Patent · US Expired

Liquid crystal composition and liquid crystal display element

US5961881A · kind A · utility

21Cited by
4References
6Claims
0Family size

Assignee

Inventors

Key dates

Filing dateNov 7, 1997
Grant dateOct 5, 1999
Priority date
Expiry dateNov 7, 2017

Classification

  • Technology area (CPC C)Chemistry; Metallurgy
  • CPC primaryC07C2601/14
  • WIPO fieldBasic materials chemistry
  • WIPO sectorChemistry

Abstract

There is provided a liquid crystal composition in particular with a low threshold voltage and a wide range of nematic phase temperature (with high TNI point and low TC), while satisfying various properties required for liquid crystal compositions for active matrix type liquid crystal display elements. The composition contains, for example, compounds represented by general formulas (1-1) and (2-1): ##STR1## where each R.sub.1 independently represents an alkyl group having 1 to 10 carbon atoms; X.sub.1 represents H or F; and each X.sub.2 independently represents F, OCF.sub.3, CF.sub.3, or OCF.sub.2 H.

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