| 摘要 |
A color display device based on dielectrophoresis is described. The device includes a dielectrophoretic mixture comprising semi-insulating particles of each of the subtractive primary colors cyan ( 32 ), magenta ( 34 ) and yellow ( 36 ) in a semi-insulating liquid ( 24 ). The dielectrophoretic frequency characteristics of the particles are the same or similar for particles of the same color but different between the three colors. In particular, the transition frequency (f<SUB>0</SUB>) is different for each color, or two colors may have the same transition frequency (f<SUB>0</SUB>) if one has a reversed sense dielectrophoretic frequency characteristic. Also the speeds of the particles are the same for particles of the same color but different between the three colors. The pixels are driven with alternating voltages of different frequencies (f<SUB>1</SUB>, f<SUB>2</SUB>, f<SUB>3</SUB>, f<SUB>4</SUB>) and duration determined such that different proportions of the different colors of particles are moved, dependent upon their transition frequencies and speeds. A reflective, saturated full color display device may thereby be provided.
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