Samsung UN40D6500 E-Manual page 236

Issues
You may notice a small
amount of screen flickering
when watching 3D images in
poor light conditions (from a
strobe light, etc.), or under a
fluorescent lamp (50Hz ~ 60Hz)
or 3 wavelength lamp.
The ideal viewing distance
should be three times or more
the height of the screen.
◀
If you leave 3D glasses on,
battery lifespan is shortened.
Solutions and Explanations
•
If so, dim the light or turn the lamp off.
•
We recommend sitting with viewer's eyes on a level with the screen.
•
Turn off 3D glasses while not using them.
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