Patent · US Expired

Dispersion for electrophoretic display, and electrophoretic display device

US7511876B2 · kind B2 · utility

0Cited by
5References
6Claims
0Family size

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Key dates

Filing dateMay 27, 2003
Grant dateMar 31, 2009
Priority date
Expiry dateJan 24, 2025

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG02F1/167
  • WIPO fieldOptics
  • WIPO sectorInstruments

Abstract

In a dispersion for electrophoretic display, used in an electrophoretic display device having i) charged electrophoretic particles and ii) a dispersion medium in which the charged electrophoretic particles stand dispersed, the dispersion medium contains at least one of an ethylene acrylate copolymer and a styrene copolymer. The styrene copolymer is in a content of from 0.0001 part by weight to 3 parts by weight based on 100 parts by weight of the dispersion medium.

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