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Touch sensing apparatus and method for assembly

  • US 10,437,389 B2
  • Filed: 11/14/2018
  • Issued: 10/08/2019
  • Est. Priority Date: 03/28/2017
  • Status: Active Grant
First Claim
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1. A touch sensing apparatus, comprising:

  • a panel comprising a touch surface, a back surface, and an edge surface;

    a support structure comprising a first portion and a second portion;

    said first portion extending parallel to the edge surface of the panel, said first portion extending above and below the touch surface;

    said second portion extending parallel to the touch surface; and

    said first portion comprising a first opening, wherein a fixing element is configured to secure a substrate to the first portion through the first opening,wherein an emitter is positioned on the substrate and above the touch surface, said emitter configured to transmit light in a plane above the touch surface and perpendicular to a normal of the touch surface; and

    an optical element configured to be secured between the touch surface and the second portion of the support structure,said optical element comprising a first surface configured to receive the transmitted light directly from the emitter and a second surface configured to receive light propagating across a touch interacting portion of the touch surface, wherein the first surface is separated from the emitter by a spacing.

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