From what I've read here and talking to a Samsung rep I've gathered "Direct LED" or "DLED" is not the same as full array; it's actually cheaper to produce than edge LED and uses fewer diodes across the span of the panel than a true full array set does, e.g. Sharp sets and the XBR, hence the lower price. IMO they still look pretty good, though.
ht Panasonic TC-P60ZT60, Monitor Audio: Silver RX6, RX Centre, Radius 90HD; Martinlogan Dynamo 700, Marantz SR5006, PS3, Oppo BDP-103D
2ch Marantz PM8004, Sony BDP-S1000ES, JVC T-X3 tuner, Monitor Audio Silver RX1, REL T3, Apple TV, Peachtree Audio DAC•iT
lr Panasonic 50ST60, Sony BDP-S5100