| 摘要 |
In a method of driving a bistable nematic dot-matrix liquid crystal display panel, from the facts that a write waveform contains a DC component and that liquid crystal molecules have not yet reached a stable state of anchoring force immediately after the end of writing but gradually become the stable state, it is considered that charges still remain in liquid crystal even at the time point when a COM electrode and a SEG electrode have become GND. Although the residual charges resulting from single writing cause no problem because its period is short, the residual charges after writing break down the bistable liquid crystal display panel as the number of rewriting increases. Immediately after a waveform for rewriting the bistable liquid crystal display panel was applied, an AC waveform of a voltage lower than the last pulse of a drive waveform was applied. Further, the voltage was allowed to gradually approach 0 V.
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