| 摘要 |
<p>PROBLEM TO BE SOLVED: To accurately detect a pressed (touched) position with no influence of the temperature. SOLUTION: The touch panel controller consists of a horizontal resistance film 1 and a vertical resistance film 2 and detects the voltage at each end part of both films 1 and 2 in a non-touch state to store these detected voltage in a RAM 12. Then, the voltage detected in a touch state is corrected by the voltage stored in the RAM 12, and the variance component of the voltage that is caused by the temperature of the voltage detected in a touch state is eliminated. Thus a touched position can be accurately detected with no influence of the temperature since the touched position is detected based on the corrected voltage.</p> |
