Enhanced mutual capacitance touch screen display with compressive touch detection and methods for use therewith

• Main Authors: Gray, Patrick Troy, Van Ostrand, Daniel Keith, Huynh, Phuong, Derichs, Kevin Joseph, Eilers, Hans Howard, Seger, Jr., Richard Stuart, Derichs, Sarah Marie, Gray, Michael Shawn
• Format: Patent
• Language: English
• Published: 08.11.2022
• Subjects: CALCULATING; COMPUTING; COUNTING; ELECTRIC DIGITAL DATA PROCESSING; PHYSICS

A capacitive touch screen display operates by: receiving a plurality of sensed signals indicating variations in mutual capacitance associated with a plurality of cross points formed by a plurality of electrodes of a sensor layer adjacent to a compressible dielectric layer adjacent; generating capacitance image data associated with the plurality of cross points that includes positive capacitance variation data corresponding to positive variations of the capacitance image data from a nominal value and negative capacitance variation data corresponding to negative variations of the capacitance image data from the nominal value; and processing the negative capacitance variation data to determine a compressive touch condition of the touch screen display by a non-conductive object.