BenQ SL6501 User Manual page 93

After-Images can still be seen
on the display after the display
is powered off. (Examples of
still pictures include logos,
video games, computer
images, and images displayed
in 4:3 normal mode)
A still picture is displayed for an over
extended period of time
Cleaning and Troubleshooting
Do not allow a still image to be
displayed for an extended period of
time as this can cause a permanent
after-image to remain on the display.
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