The control of electrostatic characteristics in toner type paper‐like display

The toner type paper‐like display (PLD) has been developed with two polymer particles having opposite polarity composed of polymer, colorant and external additives (nano‐sized silica). Nano‐sized silica with triboelectric charge was used for the charge control agent (CCA) and influenced on the electrostatic properties of the silica‐coated polymer particles. The surface morphology and the cohesiveness of silica‐coated polymer particles were changed with the silica coating time. From these results, it was verified that the PLD cell using silica‐coated particles (200 seconds) shows a good white appearance and low driving voltage.