TOUCH SENSOR WITH MULTILAYER STACK HAVING IMPROVED FLEXURAL STRENGTH
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United States of America Patent
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Issued Date -
Sep 22, 2016
app pub date -
Nov 24, 2014
filing date -
Dec 13, 2013
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Abstract
A multilayer stack for use in a touch sensor is provided, including a base substrate covering viewing and border areas of the multilayer stack and an optically opaque border layer that defines a step proximate to and extending along a perimeter of the viewing area. The multilayer stack also includes an optically transparent adhesive layer disposed on the base substrate and the border layer and covering the viewing and border areas of the multilayer stack. The multilayer stack further includes a number of discrete spaced apart optically transparent electrodes disposed on the adhesive layer, each electrode extending across the step, and a number of discrete spaced apart electrically conductive pads disposed in the border, but not the viewing, area of the multilayer stack, each pad being posed on and making physical contact with a different corresponding electrode over a contact region.
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