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    • 10. 发明授权
    • Gamma control circuit and method thereof
    • 伽玛控制电路及其方法
    • US07696967B2
    • 2010-04-13
    • US11544161
    • 2006-10-06
    • Ji-Hyun Lee
    • Ji-Hyun Lee
    • G09G3/36
    • G09G3/2007G09G2310/027G09G2320/0673
    • A gamma control circuit includes a first gray-scale voltage selection unit that selects and outputs a highest gray-scale voltage and a lowest gray-scale voltage from among a plurality of first voltages present between a first supply voltage and a second supply voltage. A second gray-scale voltage selection unit receives the highest and lowest gray-scale voltages and selects and outputs a first intermediate voltage and a second intermediate voltage between the highest and lowest gray-scale voltages. A third gray-scale voltage selection unit receives the highest and lowest gray-scale voltages and the first and second intermediate voltages and generates a plurality of reference voltages from the received voltages. A gray-scale voltage generation unit receives the highest and lowest gray-scale voltages and the plurality of reference voltages and outputs a plurality of gray-scale voltages.
    • 伽马控制电路包括第一灰度电压选择单元,其从在第一电源电压和第二电源电压之间存在的多个第一电压中选择并输出最高灰度电压和最低灰度电压。 第二灰阶电压选择单元接收最高和最低灰度电压,并选择并输出最高和最低灰度级电压之间的第一中间电压和第二中间电压。 第三灰阶电压选择单元接收最高和最低灰度电压以及第一和第二中间电压,并从接收的电压产生多个参考电压。 灰度级电压产生单元接收最高和最低的灰度电压和多个参考电压并输出多个灰度级电压。