Servicing and maintenance
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Panel PC 2100 user's manual V1.17
7.2 Tips for extending the service life of the display
7.2.1 Backlight
The service life of the backlight is specified by its "half-brightness time". An operating time of 50,000 would mean
that the display would still retain 50% of its brightness after this time.
7.2.1.1 How can the service life of backlights be extended?
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Setting the display brightness to the lowest value that is still comfortable for the eyes
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Using dark images
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Reducing the brightness by 50% can increase the half-brightness time by approximately 50%.
7.2.2 Image persistence
Image persistence refers to the "burning in" of a static image on a display after being displayed for a prolonged
period of time. This not only occurs with static images, however. Image persistence is also referred to in the
technical literature as burn-in effect, image retention, memory effect, memory sticking or ghost image.
There are basically 2 types:
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Area type: This type is characterized by a dark gray image. The effect disappears if the display is switched
off for a long period of time.
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Line type: Can result in permanent damage.
7.2.2.1 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
7.2.2.2 How can image persistence be reduced?
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Constantly switching between static and dynamic images
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Avoiding excessive brightness differences between foreground and background elements
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Using colors with similar brightness
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Using complementary colors in consecutive images
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Using screensavers
7.3 Pixel errors
Information:
Displays may contain defective pixels (pixel errors) that result from the manufacturing process. They
are not grounds for initiating a complaint or warranty claim.
