| 摘要 |
An electrophoretic display apparatus includes a pair of substrates disposed opposite to each other, charged particles and an insulating liquid which are disposed in a spacing between the pair of substrates, a pair of electrodes for driving the charged particles, and drive means for applying to one of the pair of electrodes, a voltage for moving the charged particles, and applying to the other electrode, an AC voltage biased with a DC component. The AC voltage applied to the other electrode has a frequency which is higher than an upper limit of a frequency causing movement of the charged-particles and is lower than an upper limit of a frequency causing movement of ions contained in the insulating liquid. The ions do not remain on the surface of the substrate for a long time, thus causing no residual DC voltage.
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