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发明授权
CN101622656B 等离子体显示面板的驱动装置、驱动方法及等离子体显示装置 失效 - 权利终止

等离子体显示面板的驱动装置、驱动方法及等离子体显示装置
摘要：
本发明的等离子体显示面板的驱动装置包括：开关电路(Q1、Q2)，该开关电路(Q1、Q2)选择性地使第一节点(N1)及第二节点(N2)的一方与扫描电极(SC1)连接；电压保持电路(200)，该电压保持电路(200)用于使所述第一节点(N1)和所述第二节点(N2)之间保持在第一电压(Vscn)，且设于所述第一节点(N1)和第三节点(N3)之间；及保护电路(300)，该保护电路(300)设于所述第二节点(N2)和所述第三节点(N3)之间，使所述第一节点(N1)的电位变化，所述保护电路(300)包括：保护电阻(R1)；整流电路，该整流电路与所述保护电阻(R1)并联连接，且由电容(C1)、充电限制电阻(R2)及二极管(Da)构成；两个放电电阻(R3、R4)，这两个放电电阻(R3、R4)与所述电容(C1)并联连接；及晶体管(Q10)，该晶体管(Q10)根据所述两个放电电阻(R3、R4)的连接点(N7)的电位产生异常检测信号(SOS)。
摘要（英）：

A device for driving a plasma display panel which is equipped with switching circuits (Q1, Q2) connecting a first node (N1) or a second node (N2) selectively with a scanning electrode (SC1), a voltage holding circuit (200) provided between the first node (N1) and a third node (N3) for holding the voltage between the first node (N1) and the second node (N2) at a first voltage (Vscn) and a protective circuit (300) provided between the second node (N2) and the third node (N3), and in which the potential of the first node (N1) is varied. The protective circuit (300) is equipped with a protective resistor (R1), a rectifier circuit connected with the protective resistor (R1) in parallel and composed of a capacitor (C1), a charging restriction resistor (R2) and a diode (Da), two discharging resistors (R3, R4) connected with the capacitor (C1) in parallel, and a transistor (Q10) which generates an abnormality detection signal (SOS) depending on the potential at the node (N7) of the two discharging resistors (R3, R4).

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