EYE-LCD-1700/2100-HB-BC
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9.4 Chronological Effects
False installation or use of the display during operating
time may bring forth undesirable partly visible effects.
The intern structure of imaging part (panel) may be
changed by outside influences with partly visible effects.
9.4.1 “Image Sticking”
This phenomenon which named alternatively “Image Retention”, „Ghost Image“, „Memory Effect“ or “Remanent
Image” and appears if the fluid crystals of the panel depart from the initial position. This effect may have
different causes, which are not clarified technologically. This underisable effect may occur if same content are
continual showed for months and thereafter the content change. Then possibly old content are still visible as
„shade“. These effects are wear marks, which may be intensify by unsuitable usage. It is not a defect!
Image Sticking must not confuse with „Burn-in“, which is a known fact of plasma displays and cathode ray tubes
and is based on completely different physical mechanisms. Heavy „Image Sticking“ may be reversed by long
switch off of the LCD/TFT displays, but they appear later again.
„Image Sticking“ of TFT panels is excluded from the warranty.
9.4.2 „Mura“
Further effect is Mura (a Japanese term for unevenness), which is visible as cloud formation. These clouds are
particularly visible at low brightness. The main reason for the occurrence of Mura is operating the system in
wrong temperature specifications. These may generally be caused by to high ambient temperature as well as
poor air supply caused by wrong installation or polluted ventilation system.
„Mura“ of TFT panels is excluded from the warranty.
9.4.3 Shade formation
Dust particle may build up inside the panel caused by high ambient pollution level. These particles climb
up in the panel. This effect starts mostly in corner of the rim through the different layers by convention and
capillary formation. These pollutions may be reversed by resolving and cleaning of the panel components in our
cleanroom.
Shade formation of TFT panels by pollution is excluded from the warranty.
