Browse Prior Art Database

Integrated Touch Screen Monitor

IP.com Disclosure Number: IPCOM000099595D
Original Publication Date: 1990-Feb-01
Included in the Prior Art Database: 2005-Mar-15
Document File: 3 page(s) / 109K

Publishing Venue

IBM

Related People

Hiteshew, TP: AUTHOR [+2]

Abstract

This article describes a method of mounting a force- sensing touch screen (such as a piezoelectric or strain gage type) on a low-cost personal computer or workstation monitor. The touch screen monitor (TSM) described in this article provides a low-cost, esthetically pleasing alternative to existing OEM add-on touch screens. This TSM uses an existing monitor as a base with modifications made only to the bezel cover. By maintaining compatibility with a high volume monitor, the cost of adding a touch screen is minimized.

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Integrated Touch Screen Monitor

       This article describes a method of mounting a force-
sensing touch screen (such as a piezoelectric or strain gage type) on
a low-cost personal computer or workstation monitor.  The touch
screen monitor (TSM) described in this article provides a low-cost,
esthetically pleasing alternative to existing OEM add-on touch
screens.  This TSM uses an existing monitor as a base with
modifications made only to the bezel cover.  By maintaining
compatibility with a high volume monitor, the cost of adding a touch
screen is minimized.

      In general, the cover set of a monitor consists of two pieces:
the rear cover and the bezel.  This TSM keeps the rear cover intact
and modifies the bezel.  The bezel is extended approximately 0.5
inch, and molded in two parts, as shown in Fig. 2.  All other
existing parts, e.g. covers, support structure, CRT, and electronics,
are not changed. The electronics necessary for driving the touch
screen are contained on a circuit card, which is approximately 2 x 8
inches, and mounted in a "chin" on the new bezel.  See Fig. 1.  The
touch screen glass and transducers are mounted in the outer bezel.

      The TSM interfaces with a logic unit via two 6-pin mouse-type
connectors at the rear of the bezel "chin".  One connector plugs into
a port on the logic unit, which provides power for the touch screen,
and also receives touch screen signals.  The second connector allows
for simultaneous connection...