ecrã 42" ou 46" -LCd ou Plasma, que diferenças?

Não é bem isso que é dito...
In dark scenes the Samsung LN46A950 approached the depth of black delivered by the current black-level champion, Pioneer's PDP-5020FD plasma, and beat the other displays in the room to a greater or lesser extent. At the 33:36 mark in the film, for example, showing a suburban lane lit by a couple of streetlights, the A950's letterbox bars, along with the black shadows of an unlit house and the side of a tree, all appeared darker than the other displays aside from the Pioneer, although they were just barely better than the Panasonic plasma. During the brief times when the screen faded entirely to black, the Samsung's LEDs turned off completely and its screen was darker than the Pioneer's. In other extremely dark shots, such as 55:40 and 57:35 into the film, the Samsung also briefly appeared darker than the Pioneer.
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It's worth mentioning here that black level performance fell off precipitously when we moved off-angle by just one seat cushion on our test couch
 
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