Input device having electrodes shaped to enhance capacitive sensitivity at a given position
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United States of America Patent
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Jan 5, 2016
Grant Date -
Sep 19, 2013
app pub date -
Aug 19, 2011
filing date -
Aug 25, 2010
priority date (Note) -
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Abstract
In order to improve operability when operating a target key, an input device has a plurality of keys arranged in a column direction. Each of the plurality of keys comprises a key indication mark (211) formed on an operation surface and an electrode plate (221) of a capacitive touch sensor disposed behind the operation surface, and the electrode plates (221a, 221b and so on) has a shape in which the top edge and the bottom edge are V-shaped and bend downwards so that the center of gravity of the electrode plate is positioned downwards in the column direction from a center of a minimum rectangle region enclosing the corresponding key indication marks (221a, 221b and so on).
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