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    • 7. 发明申请
    • CAPACITANCE SENSING DEVICE
    • 电容传感装置
    • US20150091845A1
    • 2015-04-02
    • US14097977
    • 2013-12-05
    • SAMSUNG ELECTRO-MECHANICS CO., LTD.
    • Tah Joon PARK
    • G06F3/044
    • G06F3/044G06F3/0416G06F3/0418
    • A capacitance sensing device includes a panel unit including first electrodes arranged in columns extending in a first direction, and second electrodes arranged in rows extending in a second direction intersecting the first direction; a driving circuit unit applying driving signals to the first electrodes arranged in the columns, wherein levels of driving signals applied to first electrodes in a part of the columns are different from levels of driving signals applied to first electrodes in the other columns; a sensing circuit unit sensing a change in capacitance from the second electrodes arranged in the rows; a variable gain controller adjusting levels of signals output from the sensing circuit unit to be same; an analog-to-digital converter (ADC) converting analog signals output from the variable gain controller into digital signals; and an operation unit detecting a touch made by a user based on an output from the ADC.
    • 电容感测装置包括:面板单元,包括以沿第一方向延伸的列布置的第一电极和沿与第一方向相交的第二方向延伸的列排列的第二电极; 驱动电路单元,将驱动信号施加到布置在列中的第一电极,其中施加到列的一部分中的第一电极的驱动信号的电平不同于施加到其它列中的第一电极的驱动信号的电平; 感测电路单元,感测从布置在行中的第二电极的电容变化; 调节从感测电路单元输出的信号电平相等的可变增益控制器; 将从可变增益控制器输出的模拟信号转换成数字信号的模数转换器(ADC); 以及操作单元,其基于来自所述ADC的输出来检测由用户进行的触摸。