Touch panel driving device, touch panel device, touch panel driving method

A touch panel device comprising:

• a touch panel;
• a touch panel driving device configured to sequentially perform a scanning of selecting a pair of adjacent transmission signal lines from N number of transmission signal lines and a pair of adjacent reception signal lines from M number of reception signal lines arranged on the touch panel wherein M and N are a natural number of 3 or more, and wherein the touch panel driving device includes a reception circuit configured to respectively receive, from the pair of adjacent reception signal lines of the touch panel, reception signals whose waveforms are changed due to a capacitance change caused by a touch operation and generate a detection value for detecting the touch operation on the touch panel by comparing the reception signals;
• and
• a plurality of noise filters each of which is configured to perform a filtering operation of the same filtering characteristics on each of the reception signals supplied from the pair of adjacent reception signal lines to the reception circuit.

A touch panel driving method comprising:

• sequentially performing a scanning of selecting a pair of adjacent transmission signal lines and a pair of adjacent reception signal lines arranged on a touch panel;
• performing a filtering operation of the same filtering characteristics on each of reception signals supplied from the pair of adjacent reception signal lines to a reception circuit on signal paths from the M number of reception signal lines of the touch panel to the reception circuit;
• and
• allowing the reception circuit to respectively receive, from the pair of adjacent reception signal lines of the touch panel, the reception signals whose waveforms are changed due to a capacitance change caused by a touch operation and generate a detection value for detecting the touch operation on the touch panel by comparing the reception signals.