POSITION DETECTION METHOD IN TOUCH PANEL AND TOUCH PANEL

摘要

A position detection method that includes calculating a distance between 2 contact points in a first direction by measuring a potential of a first electrode in a state where a power supply voltage is applied to the first electrode and a second electrode is grounded, calculating a distance between 2 contact points in a second direction by measuring a potential of a third electrode in a state where a power supply voltage is applied to the third electrode and a fourth electrode is grounded, and correcting the distance between the 2 contact points in the first direction obtained by the potential of the first electrode in accordance with the distance between the 2 contact points in the second direction obtained by the potential of the third electrode.

主权项

1. A position detection method in a touch panel that includes a first resistance film having first and second electrodes provided one on each end in a first direction and a second resistance film having third and fourth electrodes provided one on each end in a second direction orthogonal to the first direction, the position detection method comprising:
calculating a distance between 2 contact points in the first direction by measuring a potential of the first electrode in a state where a power supply voltage is applied to the first electrode and the second electrode is grounded; calculating a distance between 2 contact points in the second direction by measuring a potential of the third electrode in a state where a power supply voltage is applied to the third electrode and the fourth electrode is grounded; and correcting the distance between the 2 contact points in the first direction obtained by the potential of the first electrode in accordance with the distance between the 2 contact points in the second direction obtained by the potential of the third electrode.