| 摘要 |
<p>An AC driving type of display apparatus such as a matrix type of liquid crystal display apparatus, which is adapted to prohibit the application of the scanning voltage upon all the row electrodes or the partial row electrodes for a given period so as to switch the repetition period of the scanning voltage to be applied on all the row electrodes or the partial row electrodes into the integral multiple of the original repetition period, and to switch the period of the polarity inversion of the driving voltage to be applied upon the picture element in accordance with the repetition period of the switched scanning voltage, whereby, the completely AC driving operation may be effected, for example, even in a case where the signal voltage at the first repetition period of the scanning voltage is different from the signal voltage at the second repetition period.</p> |
