Patent · US Expired

Liquid crystalline charge transport material

US6224787A · kind A · utility

14Cited by
9References
11Claims
0Family size

Assignee

Inventors

Key dates

Filing dateMar 6, 1998
Grant dateMay 1, 2001
Priority date
Expiry dateMar 6, 2018

Classification

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

Abstract

A novel liquid crystalline charge transport material is provided which simultaneously has advantages of an amorphous material, that is, evenness in a large area, and advantages of a crystalline material having molecular alignment, is excellent in high-quality charge transport capability, film forming properties, various types of durability and the like, and permits the alignment to be regulated by external stimulation. The liquid crystalline charge transport material has smectic liquid crystallinity and an electron mobility of not less than 1.times.10.sup.-5 cm.sup.2 /v.s.

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