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热词
    • 10. 发明授权
    • Power circuit and liquid crystal display having the same
    • 电源电路和液晶显示器具有相同的功能
    • US08310477B2
    • 2012-11-13
    • US12391734
    • 2009-02-24
    • Ok-Kwon ShinSeung-Hwan MoonSun-Kyu Son
    • Ok-Kwon ShinSeung-Hwan MoonSun-Kyu Son
    • G09G5/00G09G3/36
    • G09G3/3696G09G3/006G09G2310/0291G09G2330/021
    • A power circuit for a liquid crystal display includes a voltage divider which generates a voltage-divided voltage between a first power source and a second power source, an operational amplifier which receives the voltage-divided voltage to output a driving voltage, a first switch connected between the first power source and a common node, and a second switch connected between the second power source and the common node. The first switch provides a first current path between the first power source and the common node in response to the driving voltage, and the second switch provides a second current path between the second power source and the common node in response to the driving voltage.
    • 液晶显示器的电源电路包括:分压器,其产生第一电源和第二电源之间的分压电压;运算放大器,其接收分压电压以输出驱动电压;第一开关, 在第一电源和公共节点之间,以及连接在第二电源和公共节点之间的第二开关。 所述第一开关响应于所述驱动电压而在所述第一电源和所述公共节点之间提供第一电流路径,并且所述第二开关响应于所述驱动电压而在所述第二电源和所述公共节点之间提供第二电流路径。