L-VIS User Manual
50
LOYTEC
Version 6.2
LOYTEC electronics GmbH
7 Operating L-VIS
7.1 Touch Screen
7.1.1 Operation
This section describes how to operate the touch display of the L-VIS device. Most
operations should be fairly intuitive, so that users of the device do not need to read a
manual before they are able to operate the device.
L-VIS devices use a resistive touch screen. This type of screen can only detect one touch
position at a time, that is, you cannot press two buttons at once. The screen delivers raw
data which must be converted to LCD pixel positions before it can be used; therefore a
touch screen of this type needs calibration. All devices come pre-calibrated from the factory
and should be accurate enough to operate the device out of the box. To operate a device
using very small control elements or from an unusual viewing angle, it may be necessary
for the user to re-calibrate the screen, using the built-in calibration function which is
available in the setup menu (section commands). The procedure is explained in more detail
in the next section.
The touch pressure is currently not measured and has no effect on the operation.
The touch display is able to detect three different input actions:
Touch (one point at a time)
Touch and hold (long press)
Touch and move
