| 摘要 |
A wave A1 is used as a signal inputted to a liquid crystal panel via an operational amplifier OP. The wave A1 is a superimposed wave made up of, for example, a first rectangular wave to be the base of a driving signal and a second wave capable of increasing respective amplitudes of the first wave in rising and falling directions. Because a wave A3 is superimposed, using the wave A1 as the driving signal of the liquid crystal panel surely results in increase in a quantity of charges with which respective pixels of the liquid crystal panel are supplied at early stages of writing, more than simply applying the wave A2 to the liquid crystal panel. Consequently, even when a charge supplying ability of a reference voltage line is considerably low, a desired charging quantity can surely be obtained in respective pixels within desired writing time, thereby preventing crosstalk having different degrees depending on a location even when a charge supplying ability for the respective pixels of the liquid crystal panel is considerably low.
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