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Novel Liquid Toner Electrophoretic Display

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A novel method for producing charged particles suspended in a dielectric fluid for electrophoretic display is presented. Typical charged particles for electrophoretic display contain polymer resin, color pigment, and/or charge controlling compound. Many methods for producing charged particles have been reported including the polymerization in the presence of pigment particles. In this paper, we described a method to meltmix polymer resin, pigment, and charge controlling agent all together in the dielectric fluid such as Isopar. The resulting solution contains charged color particles with average particle size about 2 μm or less. The colored particle solution was mixed with white particle solution containing titanium dioxide to form a two-color switching electrophoretic display. The display built with such two-particle solution was demonstrated. The solutions of two-color particles can be sealed between two thin plastic films with small divided compartments. A roll-to-roll manufacturing method that provides large area of small compartment with two-color particle solutions was discussed.

Document Type: Research Article

Publication date: January 1, 2009

More about this publication?
  • For more than 25 years, NIP has been the leading forum for discussion of advances and new directions in non-impact and digital printing technologies. A comprehensive, industry-wide conference, this meeting includes all aspects of the hardware, materials, software, images, and applications associated with digital printing systems, including drop-on-demand ink jet, wide format ink jet, desktop and continuous ink jet, toner-based electrophotographic printers, production digital printing systems, and thermal printing systems, as well as the engineering capability, optimization, and science involved in these fields.

    Since 2005, NIP has been held in conjunction with the Digital Fabrication Conference.

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