| 摘要 |
<p>A highly versatile device for gradation display by applying a binary signal to a data line is provided. In eight-gradation display, a frame (1f) is divided into a first period (T1) in which a signal binarized according to the gradation data is applied to a liquid crystal layer and a second period (T2) in which H-level voltage is applied to the liquid crystal layer according to the threshold voltage of the liquid crystal. The first period (T1) is divided further into seven sub-fields (Sf1 - Sf7) according to the gradation characteristics of the electrooptic device, and the proportion of the ON period or OFF period of a pixel to the frame is controlled by writing H-level or L-level according to the gradation of the relevant pixel in each sub-field.</p> |
