Maintenance and service • Pixel errors
Chapter 6
Maintenance and service
Automation Panel 9x3 User's Manual V1.00
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2 Tips for extending the service life of the display
2.1 Backlight
The service life of the backlight is specified by its "half-brightness time". For example, a specified operating time
of 50,000 hours means that the display would still retain 50% of its brightness after this time.
2.1.1 How can the service life of the backlight be extended?
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By setting the display brightness to the lowest value that is still comfortable for the eyes
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By using dark images
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By reducing the brightness by 50%, which can result in an approximately 50% increase in the half-bright-
ness time
2.2 Screen burn-in
Screen burn-in refers to the "burning in" of a static image on a display after being displayed for a prolonged period
of time. Nevertheless, static images are not the only cause of screen burn-in. Screen burn-in is also referred to as
burn-in effect, image retention, memory effect, memory sticking or ghost image.
There are basically two types:
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Area type: This type of screen burn-in is indicated by a dark gray image. The effect will disappear if the
display is switched off for a long period of time.
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Line type: This type of screen burn-in can cause lasting damage.
2.2.1 What causes screen burn-in?
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Static images
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No screensaver
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Sharp transitions in contrast (e.g. black/white)
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High ambient temperatures
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Operation outside of specifications
2.2.2 How can screen burn-in be avoided?
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By constantly changing between static and dynamic images
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By avoiding excessive brightness differences between foreground and background elements
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By using colors with similar brightness
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By using complementary colors in follow-up images
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By using a screensaver
3 Pixel errors
Information:
Displays may contain defective pixels (dead/stuck pixels) that result from the manufacturing process.
These flaws are not grounds for claiming reclamation or warranty.
