Patent · US Expired

Two particle electophoretic systems, electronic displays including two particle electophoretic systems, and methods for producing the two particle electophoretic systems

US7193769B2 · kind B2 · utility

3Cited by
8References
16Claims
0Family size

Assignee

Inventors

Key dates

Filing dateMay 13, 2005
Grant dateMar 20, 2007
Priority date
Expiry dateMay 31, 2025

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG02F1/16757
  • WIPO fieldOptics
  • WIPO sectorInstruments

Abstract

An electrophoretic display includes a transparent polymeric film including at least one cavity including a first particle species and a second particle species. Application of an electrical field causes the first particle species and the second particle species to separate from one another, and align on opposite sides of the cavity. Subsequent electric field applications cause migration of the first and second particle species, affecting a color state of the display. The electrophoretic display may be fabricated from multiple display cells arranged on a substrate.

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