Compliant overlay for use as an optically-based touch-sensitive screen
First Claim
Patent Images
1. A touch-sensitive overlay adapted to be overlaid on the face of a display screen, comprisinga pouch formed from a pair of transparent sheets,a body of transparent gel sealed in said pouch, andmeans for attaching said pouch to said display screen.
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Accused Products
Abstract
A resilient and deformable touch screen that is adapted to be overlaid on the surface of a CRT screen is formed from a semi-rigid plastic frame attached to a flexible plastic pouch filled with a soft resilient material which adheres to the surface of the pouch.
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Citations
6 Claims
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1. A touch-sensitive overlay adapted to be overlaid on the face of a display screen, comprising
a pouch formed from a pair of transparent sheets, a body of transparent gel sealed in said pouch, and means for attaching said pouch to said display screen.
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3. A touch-sensitive overlay adapted to be overlaid on the face of a display screen, comprising,
a frame, a pair of complaint, transparent sheets, said sheets being sealed to respective surfaces of said frame to form a pouch, a body of transparent gel sealed in said pouch, and means for attaching said frame to said face of said CRT screen.
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4. A touch-sensitive screen adapted to be overlaid on the face of a display comprising
a frame a pair of plastic sheets sealed to respective surfaces of said frame to form a pouch, a body of gel sealed in said pouch, said gel causing light signals emitted by said display to become trapped within said gel by total internal reflection when said screen is touched by a user and to travel to an outside edge of said frame, and a plurality of photodiodes disposed around said outside edge for receiving said light signals.
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5. An optically-based touch-sensitive screen in combination with a display comprising
a frame, a pair of transparent sheets sealed to respective surfaces of said frame to form a pouch, a body of transparent gel sealed in said pouch, and means for attaching said frame to said display.
Specification