Datapath Launches Low Cost Video Wall Build
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UK company Datapath Ltd has brought out a new standalone Video Wall Controller and Multi Display adapter, the Datapath x4, which is set to offer businesses a flexible and low cost entry for building large video display walls, and expand their creative displays in new ways.

Splitting a single DVI input into 4 independent monitor outputs, the Datapath x4 accepts dual link DVI, single link or HDMI input and has the flexibility to drive four displays from any selected region of the imput image.

It also supports DVI and analogue RGB output monitors and the multiple units can be used for larger wall configurations.

The new technology allows complex display wall arrangements for mixed displays in landscape or portrait.  Multiple units can also be combined to form larger video walls using Datapath’s Image4 graphics card to support up to 160 displays, says the company.

Digital signage applications are also made simple with no need for on location programming.

Steve De’Ath, Research director at Datapath said: “With Datapath’ X4 you can use your imagination to create stunning display solutions for both video wall and signage applications. You can build any combination of portrait and landscape display formats with overlap or bezel correction. The X4 is totally programmable, totally flexible.”

Each output monitor can take its input from any region of the input DVI image, since all the required cropping, scaling, rotation and frame-rate conversion is handled by the x4 hardware. These regions can overlap to allow any output to replicate another, or they can be configured to support any creative splice of the source material. This allows the support of many non-rectangular screen arrangements with uneven gaps, and any mix of monitor orientations.


Dual-Link DVI input will support high resolution pixel-perfect source images for display. The Datapath x4 can additionally present a default native resolution to the source to allow still higher custom resolutions at reduced frame rate, but still remain within the capabilities of the Dual-Link interface.

Most standard graphics card sources will output at this native resolution. Since the x4 will scale and frame-rate convert, using a triple-buffered capture architecture, the output monitors can still be driven at their preferred frame rates and resolutions.

At high resolution, DVI signals cannot normally be guaranteed beyond 5m cable interconnects due to the nature of the signal losses inherent in the DVI cables and connectors.

However, new active equalization hardware on the input is able to compensate for these losses and support cable lengths, of up to 20m even at full dual-link resolutions (330MHz pixel clocks).  Lower resolutions will allow even longer cable lengths.

Additionally, because different manufacturers’ cables can differ greatly in terms of losses, the Datapath x4 control application allows user configuration of the equalisation levels, to guarantee that any combination of input cable length and cable type can be adjusted for optimum quality.

The x4 supports simple editing of custom input and output configurations via a USB connection to a PC. Once configured, the x4 will run stand-alone, without the need for the USB connection, and will auto detect input resolutions and adjust internal scaling appropriately to drive the output monitors in a consistent manner.


The Datapath x4 will also auto-sense input and output frame rates and automatically genlock when possible. Four identical output monitors will automatically be driven genlocked and if the input timings match they are additionally genlocked and clock-locked to the source signal.

The Datapath x4 comes with a three year warranty, and effective customer support options.