Elo TouchSystems IntelliTouch SecureTouch manual Determining Touchscreen Fit

Determining Touchscreen Fit

1Position the LCD so the face is accessible.

2Next, determine if the touchscreen will fit in the bezel without modifications to the bezel. Modifications, if necessary, should be done without seriously compromising the mechanical integrity of the display. To do this:

•Lay the touchscreen face-down in the bezel, being careful not to damage the transducers. If the touchscreen will not fit flush against the lip of the bezel, do not force it. An interference fit between the edge of an IntelliTouch touchscreen and some of the plastic ribs found in display bezels can pinch and break the small wires which carry the signals along the edges of the touchscreen, or even result in fracture of the glass after reassembly.

It is often necessary to cut these ribs and struts inside the bezel. Cutting does not usually cause difficulties although the stiffness of the bezel may be reduced slightly. Try not to cut into the posts of any attachment screws.

Generally, a total clearance between the edge of the touchscreen and any ribs or struts of at least 0.25-inch (6 mm) in both axes is necessary. This prevents the interference fit problem discussed above and allows for variation in touchscreen mounting position.

3Check for adequate clearance of the transducers and the cable from the bezel structure. The preferred orientation of the IntelliTouch touchscreen is with the cable exiting from the right side, when viewed from the front of the

display. If the position of the cable causes difficulty, the touchscreen may be rotated 180° on units (that incorporate a seal). Rotation will cause an inversion of the output coordinates, which will be compensated for automatically by Elo driver software, but perhaps not by other drivers. The touchscreen must have the reflector stripes on the surface facing the user.

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