Touch sensing in a device having a flexible/foldable touch screen display

A device comprising:

• a flexible display configured to display images in at least a first touch area, a second touch area, and a third touch area, wherein the first touch area is configured to rotate with respect to the second touch area along a first folding axis, and the third touch area is configured to rotate with respect to the second touch area along a second folding axis;
• a first plurality of column electrodes and a first plurality of row electrodes integrated into the first touch area of the flexible display;
• a second plurality of column electrodes and a second plurality of row electrodes integrated into the second touch area of the flexible display;
• a third plurality of column electrodes and a third plurality of row electrodes integrated into the third touch area of the flexible display;
• a plurality of drive-sense circuits operable, when enabled, to drive sensor signals on the first plurality of column electrodes, the second plurality of column electrodes, the third plurality of column electrodes, the first plurality of row electrodes, the second plurality of row electrodes, and the third plurality of row electrodes;
• and
• a processing module coupled to the plurality of drive-sense circuits, the processing module configured to:
• sense, based on the sensor signals, an electrical characteristic of at least one row electrode and at least one column electrode of the first touch area, the second touch area or the third touch area;
• and
• determine, based on the electrical characteristic, a proximal touch to at least one of the first touch area, the second touch area or the third touch area.

A device comprising:

• a flexible display configured to display images in at least a first touch area and a second touch area, wherein the first touch area is configured to rotate with respect to the second touch area along a folding axis;
• a second display disposed, at least in part, on an opposing side of the device from at least one of the first touch area or the second touch area of the flexible display, the second display configured to display images in a third touch area;
• a first plurality of column electrodes and a first plurality of row electrodes integrated into the first touch area of the flexible display;
• a second plurality of column electrodes and a second plurality of row electrodes integrated into the second touch area of the flexible display;
• a third plurality of column electrodes and a third plurality of row electrodes integrated into the third touch area of the second display;
• a plurality of drive-sense circuits operable, when enabled, to drive sensor signals on the first plurality of column electrodes, the second plurality of column electrodes, the third plurality of column electrodes, the first plurality of row electrodes, the second plurality of row electrodes, and the third plurality of row electrodes;
• and
• a processing module coupled to the plurality of drive-sense circuits, the processing module configured to:
• sense, based on the sensor signals, an electrical characteristic of at least one row electrode and at least one column electrode of the first touch area, the second touch area or the third touch area;
• and
• determine, based on the electrical characteristic, a proximal touch to at least one of the first touch area, the second touch area, or the third touch area.