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Optimum Picture Quality And Afterimage Burn-in Prevention; Optimum Picture Quality; Prevention Of Afterimage Burn-in - Samsung OH75F User Manual

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Optimum Picture Quality and Afterimage
Burn-in Prevention

Optimum Picture Quality

Due to the nature of the manufacturing of this product, approximately 1 pixel per million
(1ppm) may be brighter or darker on the panel. This does not affect product performance.
– The number of sub-pixels by panel type: 6,220,800
Leaving the screen fixed on a stationary image for an extended period of time may cause
afterimage burn-in or defective pixels.
– Activate power-saving mode or a dynamic screen saver if you will not be using the
product for an extended period of time.

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 fixed
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.
― Afterimage burn-in should not occur when an LCD panel is operating in proper conditions.
Black Matrix
Common
Electrode (ITO)
Source
Drain
Gate
TFT
Data Bus-Line
Color-Filter
Storage
Pixel Electrode (ITO)
Capaccitor (Cs)
120

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