Avc Technology Co., Ltd.

Ippei Tahara

Takayuki Tajiri

Nobumichi Takaba

Shingo Arikawa

A touch panel device () includes a panel main body () including a plurality of first electrodes (X) extending parallel to one another and a plurality of second electrodes (Y) intersecting with the first electrodes (X), and a detection section (). The detection section () includes a transmission section () for sequentially applying a driving signal to the first electrodes (X), and a current-voltage conversion section () configured to scan the second electrodes (Y) and convert a current flowing through the second electrode (Y) to a voltage signal, an AD conversion section () configured to sample the voltage signal and convert it to digital data, and a touch determination section () for determining a touch position from the converted digital data. The AD conversion section () samples the induced signal for a sampling period which occurs after a preset time which is determined for each of the first electrodes (X) elapses since the application of the driving signal and which includes a peak of a waveform of the induced signal.

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Hokkaido, Japan

Ippei Tahara