Toner particles and a dry-powder electrophoretic display employing such
particles are disclosed herein. The toner particles adapted for a
dry-powder electrophoretic display comprise emulsion/aggregation
particles having a negative charge. At least a portion of the toner
particles include a surface coating, comprising a methacrylate polymer,
disposed on the surface of the toner particles to impart a positive
charge to a set of toner particles. The emulsion/aggregation toner
particles have a particle size generally less than about 10 micrometers
that allows for improved image quality as compared to conventional toners
utilized in dry-powder electrophoretic displays.