Force sensing sheet

A flexible force sensing array comprising:

• a first elastically stretchable sheet;
• a plurality of first conductive paths supported on said first elastically stretchable sheet, said first conductive paths being parallel to each other;
• an intermediate elastically stretchable sheet positioned in contact with said first elastically stretchable sheet, said intermediate elastically stretchable sheet including sensing material thereon that has an electrical characteristic that varies in response to applied physical forces;
• a layer of semiconductive material positioned in contact with said intermediate elastically stretchable sheet to thereby form with said sensing material a PN junction;
• a second elastically stretchable sheet;
• and
• a plurality of second conductive paths supported on said second elastically stretchable sheet and in electrical contact with said semiconductive material, said second conductive paths being parallel to each other and transverse to said first conductive paths.