NEC X554UN2 (X554UN-2) 55 Inch LED Backlit Display. The 55” NEC X554UN-2 sets the standard for video walls. With perfect picture quality and high product reliability, these displays are designed for the rigors of 24/7 operation. Advanced technologies of this model include direct LED backlighting for improved uniformity, full high-definition resolution (1920 x 1080) and a 5.7mm distance bezel width. NEC's vast experience in the video wall market is evident in the design of this product with features that reduce cost, ease installations and improve the visual impact of content in control rooms, broadcast studios, retail installations and as digital signage.