292AppendixAppendixPrevention of Afterimage Burn-inWhat is afterimage burn-in?Afterimage burn-in should not occur when the LCD panel is operating normally. Normal operation refersto a continuously changing video pattern. If the LCD panel displays a fixed pattern for an extended periodof time (more than 12 hours), a slight voltage difference may occur between the electrodes in pixels thatcontrol 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. Powering Off, Screen Saver and Power Saving Mode Power off the product for 2 hours after using it for 12 hours. Power off the product for 4 hours after using it for 20 hours. Go to Display Properties > Power Supply on your PC and set the product to power off asrequired. Using a screen saver is recommended.It is best to use a single-colour or moving-image screen saver.Black MatrixSource DrainData Bus-Line{m{Gate Pixel Electrode (ITO) StorageCapaccitor (Cs)Color-FilterCommonElectrode (ITO)