Patent · US Expired

Method for forming pluralities of droplets and polymer particles having low polydispersity

US5976405A · kind A · utility

70Cited by
69References
18Claims
0Family size

Assignee

Inventors

Key dates

Filing dateDec 23, 1997
Grant dateNov 2, 1999
Priority date
Expiry dateDec 23, 2017

Classification

  • Technology area (CPC Y)Emerging Cross-Sectional Technologies
  • CPC primaryY10T428/2987
  • WIPO fieldBasic materials chemistry
  • WIPO sectorChemistry

Abstract

Disclosed are uniformly sized domains of liquid crystals, a method for forming the domains, and their performance in polymer dispersed liquid crystal displays. The method provides the ability to form discrete domains of liquid crystal surrounded by a polymer shell, also known as polymer encased liquid crystals, or PELCs. Further, the method provides for the ability to make PELCs that have uniformly sized particles. Displays made comprising uniformly sized PELCs demonstrate markedly improved electro-optical performance over displays made by conventional polymer dispersed liquid crystal processes.

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