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    • 33. 发明申请
    • GAMMA VOLTAGE GENERATION DEVICE FOR A FLAT PANEL DISPLAY
    • 用于平板显示器的GAMMA电压发生装置
    • US20100295874A1
    • 2010-11-25
    • US12564921
    • 2009-09-23
    • Shang-I LiuWing-Kai Tang
    • Shang-I LiuWing-Kai Tang
    • G06F3/038G09G5/10
    • G09G3/3696G09G2300/0426G09G2320/0276
    • A gamma voltage generation device for a flat panel display includes a first voltage dividing circuit coupled between a high voltage and a low voltage, for generating a plurality of primary voltages, a plurality of primary selectors coupled to the first voltage dividing circuit, each of the plurality of primary selectors for selecting a primary voltage from the plurality of primary voltages according to an original digital value, a second voltage dividing circuit coupled to the plurality of primary voltages, for generating a plurality of secondary voltages, and a plurality of secondary selectors coupled to the second voltage dividing circuit, each of the plurality of secondary selectors for selecting a secondary voltage to be a reference grayscale voltage of a gamma curve from a predetermined number of secondary voltages of the plurality of secondary voltages according to a target digital value.
    • 用于平板显示器的伽马电压产生装置包括耦合在高电压和低电压之间的用于产生多个初级电压的第一分压电路,耦合到第一分压电路的多个初级选择器, 多个初级选择器,用于根据原始数字值从多个初级电压中选择初级电压;耦合到多个初级电压的第二分压电路,用于产生多个次级电压;以及多个辅助选择器, 所述第二分压电路中的每一个,用于根据目标数字值从所述多个次级电压的预定数量的次级电压中选择二次电压为伽马曲线的参考灰度电压。