TOUCH SCREEN, PORTABLE ELECTRONIC DEVICE, AND METHOD OF OPERATING A TOUCH SCREEN

摘要

A touch screen (5) comprises a display (7) displaying through a front surface (27) of the display (7) and a sensor system (50). The sensor system (50) is interposed between a back surface (28) of the display (7) and a bottom surface (8) of a housing (6) in which the touch screen (5) is arranged. The sensor system (50) comprises a first electrode assembly (51) and a second electrode assembly (52) and is configured to sense capacitance between the first electrode assembly (51 ) and the second electrode assembly (52). The touch screen (5) further comprises a processor being configured to determine based on the sensed capacitance a force (101) resulting from the touch action.