Touch sensor having waveguides and display device including the touch sensor
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United States of America Patent
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Aug 13, 2019
Grant Date -
Jan 25, 2018
app pub date -
Jul 6, 2017
filing date -
Jul 20, 2016
priority date (Note) -
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status (Latency Note)
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Abstract
Disclosed is a touch sensor including a plurality of first optical waveguides arranged in a stripe form, a plurality of second optical waveguides located over the plurality of first optical waveguides, arranged in a stripe form, and intersecting the plurality of first optical waveguides, and an intermediate layer between the plurality of first optical waveguides and the plurality of second optical waveguides. Each of the plurality of first optical waveguides and the plurality of second optical waveguides includes a core including an elastomer as well as a clad in contact with the core other than side surfaces of the core perpendicular to a longitudinal direction of the core. The intermediate layer has a modulus of elasticity higher than that of the elastomer.
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