The first transistor 131 coupled to the first electrode 121 is controlled using the control signal C1 to be ON (coupled state) and OFF (uncoupled state). Thus, since the potential (COM potential) of the COM signal stays at the first potential (5 V) between the time t0 and time t1, and the control signal C1 is ON as illustrated in FIG. 7, the driving signal S1 is applied to the first electrode 121 through the first transistor 131. At this time, the potential of the driving signal S1 stays at the fourth potential (0 V), and hence, the potential of the first electrode 121 relative to the COM potential is ?5 V as illustrated in FIG. 8. Since the COM potential stays at the second potential (0 V) between the time t1 and time t2, and the control signal C1 is ON as illustrated in FIG. 7, the driving signal S1 is applied to the first electrode 121 through the first transistor 131. At this time, the potential of the driving signal S1 stays at the third potential (5 V), and hence, the potential of the first electrode 121 relative to the COM potential is +5 V as illustrated in FIG. 8. Since the COM potential stays at the first potential (5 V) between the time t2 and time t3, and the control signal C1 is OFF as illustrated in FIG. 7, the driving signal S1 is not applied to the first electrode 121. At this time, the potential of the first electrode 121 is maintained to be at a potential charged between the time t1 and the time t2 using the liquid crystal capacitor including the counter electrode 23 disposed to oppose the first electrode 121 by interposing the liquid crystal layer 50, and hence, the potential of the first electrode 121 relative to the COM potential is +5 V as illustrated in FIG. 8.
