Patent ID: 11886641
Assignee: NORTHWESTERN UNIVERSITY
Field: Computer technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 4:
5. The surface haptic display of claim 1, wherein a first set of the plurality of conductive islands in the area under the fingertip is substantially capacitively coupled to the positive trace and a second set of the plurality of conductive islands in the area under the fingertip is substantially capacitively coupled to the negative trace, wherein one of the positive trace and negative trace substantially capacitively coupled to each of the respective one of the first set and second set of the plurality of conductive islands in the area under the fingertip is configured to transmit a signal to each of the respective one of the first set and second set of the plurality of conductive islands in the area under the fingertip and another of the positive trace and negative trace substantially capacitively coupled to each of the respective other of the first set and second set of the plurality of conductive islands in the area under the fingertip is configured to receive the signal from each of the respective other of the first set and second set of the plurality of conductive islands in the area under the fingertip.