| 摘要 |
<p>A technique is described for driving a liquid crystal display device having a liquid crystal layer exhibiting a cholesteric phase and switchable between a planar state and a focal conic state according to the magnitude of an applied voltage. The technique comprises the steps of: in a first period, simultaneously applying a voltage by which a plurality of pixels arranged in a matrix array are reset to the focal conic state; in a second period after the first period, sequentially applying voltages corresponding to image data to the pixels, thereby updating the display contents of the pixels; and in a third period after the second period, retaining the display state by utilizing memory characteristics of the liquid crystal. <IMAGE></p> |
