Touch input system using light guides
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United States of America Patent
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Mar 6, 2012
Grant Date -
Jun 1, 2006
app pub date -
Nov 30, 2004
filing date -
Nov 30, 2004
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A touch input system includes a light-emitting device, a bent light guide and a light detector. The light-emitting device emits light. The bent light guide receives the light emitted by the light-emitting device and guides the light to travel in a direction across a face of a display screen. The light detector detects the light.
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