Abstract
A novel reflective display known as the QR-LPD (quick-response liquid powder display) has been developed in our recent studies. Electronic liquid powder is constructed from polymer materials and driven electrically in the gap of the parallel transparent electrodes of the QR-LPD. Proper charge control is the most important factor in the design of electronic liquid powder. In this report, accurate measurement methods for charge properties, viz., saturated charge density, charging rate, and charge relaxation, are discussed. In addition, the optimum material design of electronic liquid powder for high quality and stable performance is reported.
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