Samsung 2693HM User Manual
Page 90
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Every 30 minutes, change the characters with movement.
Ex)
The best way to protect your monitor from Image retention is to set your PC or System
to operate a Screen Saver program when you are not using it.
Image retention may not occur when a LCD panel is operated under normal conditions.
Normal conditions are defined as continuously changing video patterns. When the LCD
panel is operated for a long time with a fixed pattern (-over 12 hours-), there may be slight
difference in voltage between electrodes that work the liquid crystal (LC) in a pixel. The
voltage difference between electrodes increases with time, forcing the liquid crystal to lean.
When this occurs, the previous image may be seen when the pattern is changed.
To prevent this, the accumulated voltage difference must be decreased.
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