| 摘要 |
<p>According to the present invention, a touch input device includes: a touch sensor panel which includes a plurality of driving electrodes, a plurality of receiving electrodes, and a plurality of node capacitors formed by the driving electrodes and the receiving electrodes; a driving unit which applies a driving signal to the driving electrodes; a data processing unit which includes a capacitance-voltage amplifier, which receives and integrates a signal including information on capacitance of the node capacitors through the receiving electrodes; and a control unit which controls a gain of the capacitance-voltage amplifier to be set to a first value such that the capacitance-voltage amplifier can integrate the signal first, and controls a gain of the capacitance-voltage amplifier to be set to a second value different from the first value such that the capacitance-voltage amplifier can integrate the signal second. The data processing unit can obtain touch information on the touch sensor panel using the first integral data and the second integral data.</p> |
