METHOD AND APPARATUS FOR REAL MULTI TOUCH SENSING OF TOUCH SCREEN

摘要

PURPOSE: A real multi touch sensing apparatus of a touch screen is provided to embody ten fingers recognition technology by changing mutual cap components. CONSTITUTION: A sensor unit senses touch signals. A Tx unit contacts to one shaft of the sensor unit. An Rx unit contacts to other shaft of the sensor unit. A control unit provides timing signals to the Tx unit and the Rx unit. The control unit acquires mutual cap values formed by the two shafts of the sensor unit. The control unit determines the touch signal based on the mutual cap values.