The LED vs LCD video wall debate is usually framed as a contest with a winner. In real projects it is a sizing and distance problem. A team that needs a small wall in a meeting room and a team that needs a twelve metre wall in an atrium are not choosing between the same products, even if both call them video walls.
The common myth is that LED is simply the newer, better technology and LCD is what you buy when the budget runs short. That oversimplification produces LED walls too small to justify their cost and LCD walls stretched past the point where the seams dominate the picture. This article sets out the decision rules: where each technology wins, where the crossover sits, and what to check before committing.