| 摘要 |
A data side driving IC incorporates pull-up elements and pull-down elements to be applied with modulating voltages of +½VM and -½VM, respectively. A scanning side driving IC incorporates pull-up elements to be applied with a positive write voltage of +VW from a positive voltage supply circuit, and pull-down elements to be applied with a negative write voltage of -VW from a negative voltage supply circuit. Each data electrode is driven by a positive voltage of +½VM or a negative voltage of -½VM. Each scanning electrode is controlled so that it is applied with a positive write voltage of +VW or a negative write voltage of -VW or it assumes a ground potential or a floating potential. Since the data electrodes and the scanning electrodes can be driven with high symmetry of positive and negative polarities, the long-term reliability can be enhanced, while at the same time the peripheral circuitry can be simplified.
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