Commissioning
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Mobile Panel 7200 User's manual V 1.01
3.9 User tips for increasing the service life of the display
3.9.1 Backlight
The service life of the backlight is specified by its "half-brightness time". An operating time of 50,000 hours would
mean that the display brightness would still be 50% after this time.
3.9.1.1 Measures to maintain backlight service life
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The display brightness can be set to the lowest level that is comfortable for the user's eyes.
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Bright images should be avoided as far as possible.
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A 50% reduction in brightness can increase the half-brightness time by about 50%.
3.9.2 Image persistence
Image persistence refers to the "burning in" of a static image on a display after being displayed for a long time. It
does not only occur with static images, however. Image persistence is also referred to in the technical literature as
screen burn-in, image retention, memory effect, memory sticking or ghost image.
There are 2 different types:
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Area type: This type can be seen in a dark gray image. The effect disappears if the display is switched
off for a long time.
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Line type: This can result in permanent damage.
3.9.2.1 What causes image persistence?
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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
3.9.2.2 How can image persistence be reduced?
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Switch continuously between static and dynamic images.
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Prevent excessive differences in brightness between foreground and background elements.
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Use colors with similar brightness.
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Use complementary colors for subsequent images.
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Use screensavers.
3.10 Pixel errors
Information:
Displays can contain faulty pixels (pixel errors) due to the manufacturing process. They are not
grounds for initiating a complaint or warranty claim.
