A frozen or still picture displayed on the screen for prolonged periods will result in a ghost image remaining even when you change the image. Avoid allowing a fixed image to remain on the screen for prolonged periods.
Orbiter:
Orbiter may help prevent ghost images. However, it is best not to allow any fixed image to remain on the
screen. To avoid a permanent image on the screen, the screen will move every 2 minutes.
Colour Wash:
The colour block with the screen moved a little and the white pattern are alternately displayed. It is difficult to
sense the afterimage occurred while the temporary afterimage is removed and the colour pattern is operating.
White Wash:
White wash helps remove permanent images from the screen.
Note: An excessive permanent image may be impossible to clear entirely with White Wash.
(Full details are in the user manual)