Method and apparatus for data entry for a liquid crystal...

Details Method and apparatus for data entry for a liquid crystal... Method and apparatus for data entry for a liquid crystal...

2003-09-17

2009-08-11

Nguyen, Kevin M (Department: 2629)

Computer graphics processing and selective visual display system

Display peripheral interface input device

Touch panel

C178S018040, C367S113000

Reexamination Certificate

active

07573466

ABSTRACT:
A touch screen for LCDs which uses a plurality of shockwave detectors disposed around the periphery of the viewing area to detect the location of a touch or tap which is the point of origin of an expanding shockwave.

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Two pages entitled “Touch Screen Technology” printed from the Internet from Spire Controls web page, which Applicants admit to be prior art to the present invention.
Two pages printed from the web site “Whatis.com Target Search” defining “touch screen”, which Applicants also admit to be prior art to the present invention.

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