Liquid crystal device, liquid crystal device driving method, and electronic apparatus
摘要
說明書
Furthermore, as indicated in Example 3, the average of the periods of the AC signal is preferably an integer multiple (n times) of 6 of the first period of the COM signal, and the AC signal repeating a period of n×(6+1) and a period of n×(6?1) is preferably applied to the peripheral electrode 120.
In this case, in each of the first electrode 121, the second electrode 122, and the third electrode 123 being the peripheral electrode 120, the duration in which the AC signal has a positive potential and the duration in which the AC signal has a negative potential are equalized, and bias in the polarity of the potential of the peripheral electrode 120 can be eliminated. By eliminating bias in the polarity of the potential of the peripheral electrode 120, ionic impurities attracted toward the peripheral electrode 120 can be swept to the outside of the display region E1 without stagnating.
Moreover, when the AC signal indicated in Example 2 is output from, for example, the driving IC 103, the AC signal in Example 2, which has a maximum potential of +10 V and a minimum potential of ?5 V, has a potential width, 10 V?(?5 V)=15 V. Furthermore, estimating 3 V as a circuit margin, the driving IC 103 substantially requires a breakdown voltage of 18 V.
In contrast, in Example 1 and Example 3, 5 V suffices as the amplitude of the COM signal, the amplitude of the driving signal, and the amplitude of the data signal. Even when 3 V is estimated as a circuit margin and added to 5 V, 8 V suffices as the breakdown voltage of the driving IC 103. Thus, power consumption can be reduced to from ? to ? of that in Example 2. Also, the driving IC 103 can be reduced in size.
