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During normal operation of a LCD panel, pixel image retention doesn't occur. However, if
the same image is displayed for a long time, a slight difference in electric charge accumu-
lates between the two electrodes which encase the liquid crystal. This may cause the liquid
crystal to build up in a certain areas of the display. Thus, the previous image is retained
when switching to a new video image. All display products, including LCD, are subject to
image retention. This is not a product defect.
Please follow the suggestions below to protect your LCD from image retention.
Power Off, Screen Saver, or Power Save Mode
Ex)
• Turn the power off when using a stationary pattern.
• Turn the power off for 4 hours after 20 hours in use
• Turn the power off for 2 hours after 12 hours in use
• Use a Screen saver if possible
• Screen saver in one color or a moving image is recommended.
• Set the Monitor to power off with the PC Display Properties Power Scheme.
Suggestions for specific applications
Ex) Airports, Transit Stations, Stock Markets, Banks, and Controlling Systems We recom-
mend that you follow set up of your display system program as below:
Display Information together with Logo or Moving image cycle.
Ex) Cycle : Display Information for 1 hour followed by a Display Logo or moving image
for 1 minute.
Change the Color Information periodically (Use 2 different colors).
Ex) Rotate the Color Information with 2 colors every 30 minutes.
Avoid using a combination of characters and background color with large difference in
luminance.
Avoid using Grey colors, which can cause Image retention easily.
• Avoid: Colors with big difference in luminance (Black & White, Grey)
Ex)
Information
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