Input Device

An input device comprising:

• a plurality of electrodes corresponding to a plurality of operation areas disposed adjacent to each other, the electrodes being disposed on back sides of the plurality of operation areas;
• a detection section configured to detect capacitance values of the plurality of electrodes;
• and
• a determination section configured to determine whether an operation input has been performed by an operation body to any operation area of the plurality of operation areas based on the plurality of capacitance values detected by the detection section, wherein,
• based on a difference value obtained by subtracting, from the capacitance value of one electrode of the plurality of electrodes, a value obtained by multiplying capacitance values of electrodes adjacent to the one electrode by a coefficient k, k being 0<k<1, the determination section determines whether the operation input has been performed by the operation body on the operation area corresponding to the one electrode.