The new HLA International Clinic in Barcelona is equipped with a novel digital signage circuit comprising around thirty LED screens, making it a unique installation of its kind in a medical center.

LED-based signage and matrix displays are bringing new dimensions of versatility and eye-pleasing visual effects to a growing number of outdoor and indoor applications. Recent advances in LED ...

We know that LED is a two terminal semiconductor device. It is used in most of the electronic circuits as a sign or visual representation to the normal human to know that circuit is working properly.