Refresh Rates (30 Hz Versus 60 Hz); Supporting Other Resolutions - SMART Board 4000 Series Installation Best Practices

CHAPTER 3
CONFIGURING THE PRODUCT
Resolution Pixels
4K UHD 3840 × 2160
(8.3 megapixels)
SMART advises against the use of an analog video connection for displaying FHD or 4K UHD
because analog video connections can not display high-resolution images with adequate picture
quality. If you want to use FHD or 4K UHD resolutions and the source device supports only an
analog video connection, you will likely need to upgrade the source device.

Refresh rates (30 Hz versus 60 Hz)

Displays can support different refresh rates, typically 30 Hz or 60 Hz. Higher refresh rates can result
in smoother, flicker-free video. This is most evident when using 4K UHD.
Most computers support a refresh rate of 60 Hz. Using the highest frame refresh rate possible will
provide a better experience when using the SMART product, provided the connected device
supports the refresh rate. If it doesn't, you may need to set the device's display settings to a lower
refresh rate.
NOTE
To display 4K UHD at 60 Hz on the SMART product, use the Display Port (if available) or HDMI 2.0
input. The standard HDMI 1.4 input supports only 30 Hz at 4K UHD.

Supporting other resolutions

If the connected device doesn't support FHD or 4K UHD, refer to the SMART product's
documentation for other supported resolutions. Using a resolution other than the SMART product's
native resolution can cause the pixels to be scaled, resulting in slightly blurry text and images. If the
connected computer is using a different aspect ratio than the SMART product's, the image can also
appear stretched or compressed.
23 smarttech.com/kb/171035
Details
A 4K UHD display has greater pixel density than an FHD
display. A 4K UHD display can show up to four times as
much visual information as FHD displays.
NOTES
Some video hardware described as "4K" or "UHD"
l
may be capable of displaying a 3840 × 2160
image but will not perform well with video at the
same resolution. See the knowledge base article,
Minimum requirements for Ultra High Definition or
4K on your interactive flat
SMART software may have additional
l
requirements. See
more information.
panel.
smarttech.com/downloads for