Patent · US Expired

Compliant overlay for use as an optically-based touch-sensitive screen

US4816811A · kind A · utility

24Cited by

11References

6Claims

0Family size

Assignees

American Telephone and Telegraph, Co. · US
AT&T Technologies Incorporated · US
AT&T Information Systems Inc. · US
AT&T Bell Laboratories · US

Inventors

Eric Bogatin · Olathe, US
Xina Quan · Saratoga, US
Thomas A. Schwartz · Red Bank, US
Wesley P. Townsend · Lawrence, US

Key dates

Filing date	Mar 15, 1985
Grant date	Mar 28, 1989
Priority date	—
Expiry date	Mar 15, 2005

Classification

Technology area (CPC G)Physics
CPC primaryG06F3/0421
WIPO fieldComputer technology
WIPO sectorElectrical engineering

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.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.