Sony KLV-40ZX1M overview
Edge-lit LED-powered displays such as this Sony and upcoming Samsung models announced at CES do not employ local dimming, so, as you might expect, their black-level performance can't match that of displays that do. On the other hand, edge-lit LED backlights allow the panels to be thinner than ever--the KLV-40ZX1M's panel, for example, measures just 1.1 inches thick. As a result, this TV looks stunningly thin and high-tech, especially when seen from the side, and its LED technology allows for improved energy-efficiency. Naturally, you'll pay a good deal more for the privilege of owning a first-generation technology.