| 摘要 |
A separating circuit 244 is connected between a scanning voltage circuit 241, which supplies a selected voltage V1 to a line SU and an unselected voltage V2 to a line SD, and a sustaining voltage circuit 242, which selectively supplies a sustaining voltage Vs and 0 V to a line SC. A power recovery circuit 243 is connected to the line SC. In the separating circuit 244, a switch SW16 is connected between the line SD and the line SC and line SC, and a switch SW17 is connected between the line SU and the line SC. During an address period, the switches SW16 and SW17 are turned off and during a sustain period the switch SW16 is turned on/off and SW17 is turned on. The switch SW16 is constituted with a diode whereas the switch SW17 is constituted with a MOS transistor. When the unselected voltage V2 is negative, either the switch SW16 or SW17 may be omitted.
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