In each of the above-described exemplary embodiments, to achieve low power consumption by combining the above-described Ion-Surf driving and common inversion driving, and to effectively sweep ionic impurities from the display region E1 to the outside, when the common signal (COM signal) has a frequency of 60 Hz to 240 Hz, the AC signals preferably have a frequency of 0.1 mHz to 5 mHz that is smaller than 12 mHz obtained in consideration of the above-described value of the mobility μ of the ionic impurities. Note that, when the common signal (COM signal) has a frequency of 60 Hz, the first period is 16.7 milliseconds (ms), and when the common signal has a frequency of 240 Hz, the first period is 4.2 milliseconds (ms). On the other hand, when the AC signal has a frequency of 0.1 mHz, the second period is 10000 seconds, and when AC signal has a frequency of 5 mHz, the second period is 200 seconds.
In each of the above-described exemplary embodiments, the three electrodes 121, 122, and 123 (peripheral electrode 120) configured for ion trapping are preferably disposed to have frame shapes (ring shapes) surrounding the display region E1. With this configuration, regardless of alignment control of the liquid crystal molecules LC, ionic impurities, which enter the liquid crystal layer 50 from different directions and diffuse, can be swept to the outside of the display region E1.
Electronic Apparatus