VIZIO's Full-Array LED backlight technology delivers brilliant picture quality as it distributes LEDs across the entire screen for superior light uniformity and picture performance. Active LED Zones x5 (local dimming) dynamically adjust the LED backlighting in each area of the screen to match the content on the screen providing unparalleled picture contrast and crystal-clear detail with deep, pure black levels. Deliveres superior light uniformity and picture performance. Connect with high-speed wireless for easy, clutter-free Internet access. So buy this TV and Get $20 Off + $100 promotional eGift card with the purchase of the VIZIO 40 Inch LED Smart TV E400I-B2 HDTV for just $377.99! Free shipping!