×

Haptic display with simultaneous sensing and actuation

  • US 10,120,447 B2
  • Filed: 06/17/2014
  • Issued: 11/06/2018
  • Est. Priority Date: 06/24/2013
  • Status: Active Grant
First Claim
Patent Images

1. A touch interface having simultaneous sensing and actuation comprising:

  • an insulating substrate having a front surface and a rear surface;

    a plurality of electrodes disposed on the rear surface arranged in a first pattern;

    a plurality of electrodes disposed on the front surface arranged in a second pattern that mirrors the first pattern, wherein the electrodes on the front surface have a substantial mutual capacitance with corresponding mirrored electrodes on the rear surface,wherein when a transmitted signal is applied to at least one of the electrodes on the rear surface, the transmitted signal passes through the insulating substrate via the mutual capacitance to the at least one electrode on the front surface such that when a user'"'"'s finger is disposed contiguous with the front surface the finger modulates a strength of reception of the transmitted signal from the at least one electrode on the front surface to at least one other electrode on the front surface as a received signal;

    wherein the received signal passes through the insulating substrate via the mutual capacitance to at least one electrode on the rear surface so that a location of the user'"'"'s finger is determined from the strength of reception of the received signal.

View all claims
  • 2 Assignments
Timeline View
Assignment View
    ×
    ×