06323989 is referenced by 354 patents and cites 146 patents.

An electrophoretic display comprises a fluid and a plurality of nanoparticles having diameters substantially less the wavelengths of visible light such that, when the nanoparticles are in a dispersed state and uniformly dispersed throughout the fluid, the fluid presents a first optical characteristic, but when the nanoparticles are in an aggregated state in which they are gathered into aggregates substantially larger than the individual nanoparticles, the fluid presents a second optical characteristic different from the first optical characteristic. The electrophoretic display further comprises at least one electrode arranged to apply an electric field to the nanoparticle-containing fluid and thereby move the nanoparticles between their dispersed and aggregated states.

Title
Electrophoretic displays using nanoparticles
Application Number
9/565417
Publication Number
6323989 (B1)
Application Date
May 5, 2000
Publication Date
November 27, 2001
Inventor
Ian D Morrison
Acton
MA, US
Paul S Drzaic
Lexington
MA, US
Joseph M Jacobson
Newton Centre
MA, US
Agent
David J Cole
US
Assignee
E Ink Corporation
MA, US
IPC
G09G 3/34
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