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Apparatus and associated methods for touchscreen displays

  • US 9,733,706 B2
  • Filed: 12/21/2011
  • Issued: 08/15/2017
  • Est. Priority Date: 10/26/2011
  • Status: Active Grant
First Claim
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1. An apparatus comprising at least one processor and at least one non-transitory memory including computer program code, the at least one non-transitory memory and the computer program code configured to, with the at least one processor, cause the apparatus at least toprovide a first state or a second state in an electrode, with a single layer functioning both as the transmitter electrode of a mutually-capacitive touch sensor and as an electrotactile element,wherein in the first state, the electrode is configured for use in the detection of touch input,wherein in the second state, the electrode is configured for use in the provision of haptic feedback,wherein the electrode includes an upper surface area that is divided into a plurality of segments, configured to reduce capacitance of the electrode below a threshold level thereby staying within touch input measurement circuit limits, andwherein each segment further configured to provide a different amplitude of haptic feedback;

  • andswitch between providing the first state and providing the second state.

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