Touchscreen panel, and method of initializing touchscreen panel

A touchscreen panel, comprising:

• a first resistive film having a first electrode and a second electrode provided at corresponding ends thereof in a first direction;
• a second resistive film having a third electrode and a fourth electrode provided at corresponding ends thereof in a second direction perpendicular to the first direction;
• a first resistor having a first end connected to the first electrode and a second end to a certain electric potential;
• and
• a second resistor having a first end connected to the third electrode and a second end to a certain electric potential,
• wherein the touchscreen panel is configured to have a plurality of points displayed thereon, the points being for measuring a potential with the touchscreen panel being contacted at two of the points with a predetermined potential being applied to the touchscreen panel and calculating a relational expression between the potential and the two points based on the measured potential.