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    • 35. 发明授权
    • Power supply circuit for liquid crystal display device that changes durations of control signals
    • 用于改变控制信号持续时间的液晶显示装置的电源电路
    • US08854354B2
    • 2014-10-07
    • US12909272
    • 2010-10-21
    • Yong Sung AhnJung Min ChoiSang Rok ChaDae Keun HanHyung Seog OhYong Suk Kim
    • Yong Sung AhnJung Min ChoiSang Rok ChaDae Keun HanHyung Seog OhYong Suk Kim
    • G09G5/00G09G3/36
    • G09G3/3696G09G3/3677G09G2330/02G09G2330/06
    • A power supply circuit of a liquid crystal display device includes a first positive polarity charge charging unit including a first capacitor connected to positive and negative power terminals through switches to charge a charge, a second positive polarity charge charging unit including a second capacitor connected to the positive power terminal and a ground terminal through switches to charge a charge, a first positive polarity charge loading unit loading the charge supplied through the positive power terminal to a negative polarity terminal, a second positive polarity charge loading unit loading the charge charged in the first capacitor to a negative polarity terminal, a third positive polarity charge loading unit loading the charge charged in the second capacitor, and a positive polarity charge charging/loading control unit outputting charging control signals with a same phase to the switches, and periodically or irregularly changing durations of the charging and loading control signals.
    • 液晶显示装置的电源电路包括第一正极性充电充电单元,其包括通过开关对正电源端子和负电源端子连接的第一电容器进行充电;第二正极性充电单元,包括连接到 正电源端子和接地端子,通过开关对电荷充电,第一正极性电荷负载单元将通过正电源端子提供的电荷负载到负极端子;第二正极性电荷负载单元,负载在第一 电容器连接到负极端子,第三正极性电荷负载单元加载充电在第二电容器中的电荷;以及正极性充电充电/负载控制单元,向开关输出具有相同相位的充电控制信号,并周期性地或不规则地改变 充电和加载控制的持续时间 诺尔斯