Protected touch panel display system

Details Protected touch panel display system Protected touch panel display system

2005-03-08

2005-03-08

Shankar, Vijay (Department: 2673)

Computer graphics processing and selective visual display system

Display peripheral interface input device

Touch panel

C345S156000, C345S175000, C345S178000

Reexamination Certificate

active

06864882

ABSTRACT:
A display screen is positioned relative to the interior side of a protective barrier. Also positioned relative to the interior side of the protective barrier are emitters adapted for emitting energy beams and detectors adapted for detecting the energy beams. Emission guides positioned relative to the exterior side of the protective barrier are adapted to receive the energy beams and to channel the energy beams across the exterior side of the protective barrier and through to the interior side of the protective barrier for detection. The display screen, the emitters and the detectors may not be accessible from the exterior side of the protective barrier. A touch on the exterior side of the protective barrier will interrupt at least two energy beams. The location of the touch on the exterior side of the protective barrier may be calculated based on the interrupted energy beams.

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