| 摘要 |
In a liquid crystal display device having a plurality of pixels arranged in the form of a matrix, with groups of the pixels being arranged in lines along respective gate signal lines, the present invention provides for accumulating both signal levels of pixel data for odd-numbered lines of the pixels and for even-numbered lines of the pixels separately in every frame period, obtaining a subtracted value obtained by subtracting one of the accumulated values of the signal levels from the other, and transmitting an alternation signal which changes the voltage polarity applied to a liquid crystal layer by modifying the phase thereof on the basis of the subtracted value, so that flicker appearing on a display screen is efficiently suppressed.
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