Touch panel

摘要

A touch panel includes an upper electrode substrate having a rectangular shape and having an upper conductive film formed thereon, a lower electrode substrate having a rectangular shape and having a lower conductive film formed thereon, a first power feeding terminal, a second power feeding terminal, a third power feeding terminal, and a fourth power feeding terminal disposed on the lower conductive film at four respective corners of the lower electrode substrate, a first potential detecting unit configured to detect a potential of the second power feeding terminal, a second potential detecting unit configured to detect a potential of the fourth power feeding terminal, and a third potential detecting unit configured to detect a potential of the third power feeding terminal.

主权项

1. A touch panel, comprising:
an upper electrode substrate having a rectangular shape and having an upper conductive film formed thereon; a lower electrode substrate having a rectangular shape and having a lower conductive film formed thereon; a first power feeding terminal, a second power feeding terminal, a third power feeding terminal, and a fourth power feeding terminal disposed on the lower conductive film at four respective corners of the lower electrode substrate; a first switch situated between the second power feeding terminal and a ground potential; a second switch situated between the third power feeding terminal and the ground potential; a first resistor and a third switch that are series-connected between the second power feeding terminal and a power supply potential; a first potential detecting unit configured to detect a potential of the second power feeding terminal; a second resistor and a fourth switch that are series-connected between the fourth power feeding terminal and the power supply potential; a second potential detecting unit configured to detect a potential of the fourth power feeding terminal; a third resistor and a fifth switch that are series-connected between the third power feeding terminal and the power supply potential; and a third potential detecting unit configured to detect a potential of the third power feeding terminal.