Proface APL3000B - Node Box PC User Manual
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When the same image is displayed on the PL unit’s screen for a long period, an afterimage may appear when the image
is changed. This is an LCD characteristic and not a product defect.
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To prevent an afterimage:
* Set the PL unit’s display OFF feature when you plan to display the same screen image for a long period of time.
* Change the screen image periodically and try to not display the same image for a long period of time.