TOUCHSCREEN APPARATUS, INTEGRATED CIRCUIT DEVICE, ELECTRONIC DEVICE AND METHOD THEREFOR

摘要

A method for identifying multiple touch user interaction with a touchscreen device. The method includes receiving an indication that a touch has been detected on the touchscreen device, applying a first voltage across a first conductive layer of the touchscreen device and measuring first and second voltage signals at first and second electrical contacts of a second conductive layer of the touchscreen device, applying a second voltage across the second conductive layer of the touchscreen device and measuring third and fourth voltage signals at third and fourth electrical contacts of the first conductive layer of the touchscreen device, and interpreting the user interaction with the touchscreen device and identifying multiple touch gestures based at least partly on at least one of a difference between the first and second voltage signals, and a difference between the third and fourth voltage signals.