| 摘要 |
A liquid crystal display device includes write gradation decision means (2, 3) for deciding write gradation data for compensating the optical response characteristic of a liquid crystal display panel (4) for input image data according to the combination of the gradation transitions before and after at least one vertical display period and achieved gradation decision means (5, 6) for outputting achieved gradation data after lapse of one vertical display period of the liquid crystal panel for the input image data according to the combination of the gradation transition before and after at least one vertical display period. The write gradation decision means (2, 3) decide the write gradation data to be supplied to the liquid crystal display panel (4) according to the achieved gradation data of the liquid crystal display panel (4) corresponding to the input image data before one vertical display period output from the achieved gradation decision means (5, 6) and the input image data of the current vertical display period. Thus, even if any kind of gradation transition is generated before and after one vertical display period, by performing overshoot drive of the liquid crystal panel by using the gradation actually reached in one vertical display period, it is possible to surely suppress generation of a residual image in a moving picture having any gradation transition and correctly display an intermediate tone.
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