Novel Color Electrophoretic Imaging Display Based on Movement of Particles Using Two Driving Electrodes

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Abstract:

We are studying a color electrophoretic imaging display. This display has an electrophoretic liquid, which contains nonelectrophoretic particles, positively and negatively charged electrophoretic particles. We fabricated five kinds of white, black and magenta electrophoretic particles using chemical polymerization technique, and developed two types of electrophoretic dispersion liquid. One type contains positively charged electrophoretic magenta particles, negatively charged electrophoretic black particles, and non-electrophoretic white particles. The other type contains negatively charged electrophoretic magenta particles, positively charged electrophoretic black particles, and non-electrophoretic white particles. This display has three colored states, which are controlled by two driving electrodes. The two driving electrodes and a common transparent electrode were set on the back and front glass plate in this display cell, respectively. For the first state, the two driving electrodes were set at positive voltage so that negatively charged electrophoretic particles appeared at the visual surface. For the second state, the two driving electrodes were set at negative voltage so that positively charged electrophoretic particles appeared at the visual surface. For the third state, the two driving electrodes were set at opposite voltages to each other so that non-electrophoretic white particles appeared at the visual surface.

Document Type: Research Article

Publication date: January 1, 2008

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  • 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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