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Appendix
Prevention of Afterimage Burn-in
What is afterimage burn-in?
Afterimage burn-in should not occur when the LCD panel is operating normally. Normal
operation refers to a continuously changing video pattern. If the LCD panel displays a xed
pattern for an extended period of time (more than 12 hours), a slight voltage difference may
occur between the electrodes in pixels that control the liquid crystals.
Such a voltage difference between electrodes increases with time and makes the liquid
crystals thinner. When this occurs, a previous image can remain on the screen when the
pattern changes. To prevent this, the accumulated voltage difference should be reduced.
Black Matrix
Source Drain
Data Bus-Line
TFT
Gate
Pixel Electrode (ITO)
Storage
Capaccitor (Cs)
Color-Filter
Common
Electrode (ITO)
• Powering Off, Screen Saver and Power Saving Mode
• Power off the product for 4 hours after using it for 20 hours.
• Power off the product for 2 hours after using it for 12 hours.
• Go to Display Properties > Power Supply on your PC and set the product to power off
as required.
• Using a screen saver is recommended.
It is best to use a single-color or moving-image screen saver.
• Regular color Change
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Type 1 Type 2
NOTE
Use 2 colors
Switch between 2 colors every 30 minutes as shown above.
• Avoid combinations of a text color and background color of contrasting brightness.
Avoid using grey as it may contribute to afterimage burn-in.
Avoid using colors of contrasting brightness (black and white; grey).
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• Regular Text color Change
• Use bright colors of similar brightness.
Interval: Change text color and background color every 30 minutes
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