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• Creating enough space between the CRT and the bezel to accommodate the
touchscreen. Adequate spacing can normally be accomplished by:
1
trimming or milling the inside of the bezel
2
using spacers to move the CRT back in the chassis
3
using spacers to move the bezel away from the touchscreen.
A combination of moving the CRT back with spacers and trimming the bezel
is the usual solution.
• Depending on the touchscreen selected, avoidance of contact between the
display bezel and the active area of the touchscreen may be necessary. The
active area is that portion of the touchscreen inside the solid line. This "line"
can be easily seen on the touchscreen itself as the edge of a piece of
translucent material which is between the touchscreen glass and cover
sheet.A small force applied to the cover sheet in the active area will produce
contact between the glass and cover sheet registering a touch. A permanent
touch, such as one produced by a bezel, will defeat the normal operation of
the touchscreen. (It is permissible for the display bezel or a gasket to make
permanent contact with the inactive border region of the touchscreen, and
this often produces a more attractive solution.) Some AccuTouch
touchscreens are sized so the active area is larger than typical bezel openings,
so bezel contact often produces a touch.
Some of the popular touchscreen sizes are available with a wider inactive
border region. This will allow you to install the touchscreen with the display
bezel in contact with the touchscreen. The factors you should consider when
selecting this installation method are:
•
Spacer Selection - Spacers between the bezel and CRT cannot be
eliminated using this method, and in fact should be chosen carefully. The
desired result is to have the bezel just touch the touchscreen, but put little
or no pressure on it.
•
Sealing - Sealing touchscreens in the inactive border region will be easier.
Caulks and gaskets of almost any type may be used to make a seal between
the touchscreen and bezel in this region.
Double-sided tape and foam sealing tape are included in the Elo touchscreen
installation kit (P/N 458095-000). The following steps assume you will use
these materials to mount the touchscreen to the CRT.
Содержание AccuTouch 821615-000
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