Patent ID: 6323989
Filing Date: 2001-11-27
Classification: B41J,B82Y,C09D,G02B,G02F,G03G,G04B,G09F,H01L,H05K

Abstract:
An electrophoretic display comprising a fluid and a plurality of nanoparticles having diameters substantially less than 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 comprising 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.