Touch sensing apparatus and method for assembly
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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Abstract
A touch sensing apparatus is disclosed comprising a panel that defines a touch surface, a plurality of light emitters and detectors arranged along a perimeter of the panel. The light emitters are arranged to emit a respective beam of emitted light that travels above the touch surface, wherein the light detectors are arranged to receive detection light from the emitted light. The plurality of light emitters and detectors are arranged above the touch surface and are connected to a substrate extending in a direction parallel with a normal axis of a plane in which the panel extends. A method of assembling a touch sensing apparatus is also disclosed.
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Citations
9 Claims
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1. A touch sensing apparatus, comprising:
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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. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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Specification