UD100 User Guide Document: UD100-3
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value by new input resolution 3840+500*2=4840 to get correct video wall Overlap value. User can
also continuously increase overlap value in both projectors to a point that can get clear image.
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The adjustment range of 1800 pixels is calculated according to the signal source resolution. If the
signal source is 4k/2k and the adjustment value is 1200 pixels, when switching to 1080p input
signal, the adjustment value will be converted to 600 pixels automatically to maintain the same
image position. If the input signal source is 1080p and the adjustment value is 1000 pixels, when
switching to 4k/2k input signal, the adjustment value should be 2000 pixels. However due to the
maximum adjustment value is only 1800 pixels, the final image will follow 1800 pixels but not 2000
pixels for 4k input. It means the image aspect ratio will not the same as 1080p input source.
13. Miscellaneous settings
13.1. Helpful tips for edge blending
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UD100 can support interlaced signal source (i.e. 1080i). However, if user rotates or flips the
image, there will be no 3D motion adaptive de-interlaced function. User may see some small flick
image while the input is still image. We recommend applying progressive signal to avoid this kind
of issue.
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In the application with short throw ratio projector on curved screen, there will be big image
distortion. User needs to apply big geometry alignment and degrade the video quality.
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Image position drift will cause blurred image in overlapped region. For edge blending application,
please select one projector with less Thermal drift. It can be judge through comparing image
position shift between Power on and after 20 minutes running time.
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Mark the final image position. Once the position shift in the future, it can be recovered through
[2x2] corner adjustment via remote controller easily.
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Native contrast ratio is important in edge blending. The higher contrast ratio will have less light
leakage with less banding in overlapped region under dark environment.
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Ultra-short throw projector is not suitable for edge blending due to big reflection angle and easy
to cause color banding effect while watching from different viewing angle, especially under high
gain screen.
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Select projector models for edge blending in advance will make sure to get the best final quality.
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DLP Laser projector is recommended for edge blending due to accurate color calibration and
high native contrast ratio.
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During system settings, the output signal may be temporarily lost and cause projector re-
searching input signal and the image disappears shortly. User can disable [Frame Sync] function
to avoid this kind of effect. After finishing system setup, user need to set [Frame Sync] at
[Normal] position to get perfect synchronization in all output channels.
