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Capacitive Touch Sensor

  • US 20140347573A1
  • Filed: 05/21/2013
  • Published: 11/27/2014
  • Est. Priority Date: 05/21/2013
  • Status: Active Grant
First Claim
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1. An apparatus comprising:

  • a first layer comprising a first substrate, first capacitive sensors on the first substrate and first electrical leads on the first substrate extending from the first capacitive sensors towards side edges of the first substrate; and

    a second layer comprising a second substrate, second capacitive sensors on the second substrate and second electrical leads on the second substrate extending from the second capacitive sensors towards side edges of the second substrate,where the first layer is located on top of the second layer, where the first capacitive sensors are arranged in a substantially ring-shaped pattern, where the second capacitive sensors are arranged in a pattern sized to fit under the first layer within an inside perimeter of the substantially ring-shaped pattern of the first capacitive sensors, and where the second layer comprises electrically conductive material spaced from the second capacitive sensors and the second electrical leads, where the electrically conductive material is sized and shaped to be located under the first capacitive sensors and the first electrical leads.

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