When things get steamy…
You might have seen them already: thin, colored lines on LED video walls that run between rows of pixels. The cause? Humidity that created a bridge in the board electronics. The problem is that such bridges are irreversible. Once they are there, they never go away. Another problem is that replacing one module only rarely solves the full problem: once an LED video wall is powered on under humid conditions, it’s very likely that other modules will develop similar problems over time. The trick is to power the wall in a controlled and smart way.
Humidity can never build up in an active wall. The heat dissipation is enough to vaporize all moisture. But during transport or inactive periods, things are different. That is why TruePix introduces a unique dehumidifying process. If the sensors detect a high level of humidity in a module during start-up, the power will be applied very gently. This means that the module will slowly light up, making sure there is no risk of damage.
By the way, if a module is in the EcoPower standby mode, there would also be risk of moist building up inside the panel – but of course the clever Barco engineers have found a way to prevent this. Even in EcoPower standby mode the humidity is constantly monitored. If the levels reach a certain threshold, the module will heat up enough to counter this (while staying fully black), so the wall can be powered up without any issues!
The introduction of all these unique measures in TruePix clearly show Barco’s ambition to live up to their promise to create an ‘Always-on LED wall’. The next article builds further on this philosophy, diving into the service solutions offered to ensure the wall’s uptime.