| 摘要 |
<p>A data signal-line driver (30) that outputs, to source lines (22) of a liquid-crystal panel (20), data signals that are in accordance with gradation data, as adjacent outputs with opposite polarities; wherein the data signal-line driver (30) is provided with a polarity-switching control circuit (44) that reverses the polarities of adjacent outputs of polarity-reversal switching circuits (33, 41), based on a control signal (Ctrl_REV); an output short-circuiting control circuit (45) that short-circuits adjacent outputs of short-circuit switching circuits (40), based on a control signal (Ctrl_CS); and an assessing circuit (43) that successively obtains gradation data, and selectively outputs the control signal (Ctrl_REV) and the control signal (Ctrl_CS), based on a display pattern, consisting of penetrating-states and non-penetrating-states at adjacent outputs, of the majority of the one-line's worth of gradation data that was obtained the last time, and a display pattern of the majority of the one-line's worth of gradation data that was obtained currently. In such a way, current consumption is reduced, and heating due to this current consumption is reduced, when displaying a peculiar image upon source-block reversal driving.</p> |
