ELECTROPHORETIC MEDIA COMPRISING A CATIONIC CHARGE CONTROL AGENT

Abstract: electrophoretic media are disclosed containing a plurality of charged pigment particles, a charge control agent, and a non-polar liquid. the molecular structure of the charge control agent includes two quaternary ammonium functional groups, two or more amide functional groups or two or more ester functional groups, and two or more aliphatic biradical units, each of the two or more aliphatic biradical units comprising a ring structure.

Inventor(s): Eugene BZOWEJ, Darwin Scott BULL

CPC Classification: G02F1/167 (by electrophoresis)

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