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    • 4. 发明授权
    • AC plasma display unit and its device circuit
    • 交流等离子体显示单元及其器件电路
    • US5654728A
    • 1997-08-05
    • US661024
    • 1996-06-10
    • Yoshikazu KanazawaTomokatsu Kishi
    • Yoshikazu KanazawaTomokatsu Kishi
    • G09G3/291G09G3/20G09G3/288G09G3/296G09G3/298G09G3/28
    • G09G3/2965G09G3/298G09G3/293G09G3/294
    • 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.
    • 分离电路244连接在扫描电压电路241之间,扫描电压电路241将选择的电压V1提供给线路SU,未选择的电压V2提供给线路SD,以及维持电压电路242,其选择性地提供维持电压Vs和0V 到一条线SC。 电源恢复电路243连接到线路SC。 在分离电路244中,开关SW16连接在线SD与线SC和线SC之间,开关SW17连接在线SU与线SC之间。 在寻址期间,开关SW16和SW17断开,在维持期间,开关SW16导通/断开,SW17导通。 开关SW16由二极管构成,而开关SW17由MOS晶体管构成。 当未选择的电压V2为负时,可以省略开关SW16或SW17。