Capacitive touch sensor
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United States of America Patent
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Sep 22, 2015
Grant Date -
Nov 27, 2014
app pub date -
May 21, 2013
filing date -
May 21, 2013
priority date (Note) -
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Abstract
An apparatus including a first layer having a first substrate, first capacitive sensors on the first substrate and first electrical leads on the first substrate; and a second layer having a second substrate, second capacitive sensors on the second substrate and second electrical leads on the second substrate. The first layer is located on top of the second layer. The first capacitive sensors are arranged in a substantially ring-shaped pattern. 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. The second layer includes electrically conductive material spaced from the second capacitive sensors and the second electrical leads. 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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