Patent · US Expired

Liquid crystal composition and liquid crystal display device

US7291368B2 · kind B2 · utility

4Cited by
3References
24Claims
0Family size

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Key dates

Filing dateApr 8, 2005
Grant dateNov 6, 2007
Priority date
Expiry dateJul 3, 2025

Classification

  • Technology area (CPC C)Chemistry; Metallurgy
  • CPC primaryC09K2323/00
  • WIPO fieldBasic materials chemistry
  • WIPO sectorChemistry

Abstract

The present invention is to provide such a liquid crystal composition that satisfies plural characteristic features selected from a wide temperature range of a nematic phase, a low viscosity, an appropriate optical anisotropy, a large negative dielectric anisotropy and a large specific resistance.The liquid crystal composition of the invention contains, as a first component, at least one compound selected from the group consisting of compounds represented by Formula (1-1) to (1-4); contains, as a second component, at least one compound selected from the group consisting of compounds represented by Formula (2-1) to (2-3); and has a negative dielectric anisotropy. In the following formulae, all the symbols are defined in claim 1

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