Christie DS+4K, User Manual

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Section 3: Operation
3-54 User’s Manual
Figure 3.30. Examples of Poor and Ideal Synchronization
(2)
DARK INTERVAL
—
(note: not always required). For slower gating
technologies, you may also need to artificially increase the amount of dark
time between displayed frames so that shutters have even more time to
open/close and each eye sees the full display intended for it (Figure 3.30B).
Symptoms are more subtle than cross-talk—if the dark interval is too brief for
proper gating, you may notice an apparent color temperature problem, with
some whites or grays appearing with a slight red, green or blue tint. This color
artifact is particularly easy to diagnose in a grayscale test pattern displayed in
3D (stereographic) mode. In the Advanced Image Settings menu, increase the
“Dark Interval” as necessary until the grayscale is correct—you may also have
to increase the internal frame delay when using a longer Dark Interval. The
Dark Interval range of adjustment depends on the vertical frequency of your
source—the higher the frequency, the smaller the range.