| 摘要 |
PROBLEM TO BE SOLVED: To prevent display quality from being degraded due to crosstalk of an image signal through auxiliary capacitance of a display pixel in a liquid crystal display device using multi-phase image signals. SOLUTION: Each input circuit for the multi-phase image signals to columnar signal driving circuit 51 is provided with each single phase processing part 1-i consisting of a delay circuit 11, an adding circuit 12, and a D-A converter 13 which process digital image data VIDEOd[i]:(i=1-n). Moreover, a compensation data creating part 2 consisting of an adding circuit 21 for adding all the image data VIDEOd[i] and a multiplying circuit 22 for multiplying the addition result by a certain coefficient Ac is arranged, and the multiplication result is added to the image data VIDEOd[i] by the adding circuit 12 of each single phase processing part 1-i. The coefficient Ac is set to a value at which the multiplication result of the multiplying circuit 22 is made corresponding to the voltage variation of a base board terminal of the auxiliary capacitance, to compensate for a crosstalk portion in accordance with the image signals to be written in group units. COPYRIGHT: (C)2004,JPO&NCIPI
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