Although at first glance looking very similar, used plasma TVs for sale utilise very different technology to both LCD and LED televisions.
Essentially, a plasma display is made up of a number of miniscule gas cells that are sandwiched between two panes of glass. Each tiny cells ways as if it was a fluorescent tube by emitting ultraviolet light which hits blue, green and red spots on the actual screen. These colours glow to from the picture itself.
Plasma purists would still maintain, despite the fact that in many ways plasma technology has been overtaken, that a plasma is still the ultimate in terms of deep blacks and natural colours - and that only a plasma can deliver spectacular movie picture quality. When LED first came onto the scene, there was probably an element of truth in that particular argument, but as LED (and OLED) technology has continued to develop and improve, this argument has diminished slightly as differences between them have become less obvious and less pronounced.
Plasma TVs also suffered because of its comparatively poor performance in terms of energy efficiency - more than double the annual running cost, typically, when put alongside LED televisions. This is largely the reason why most major manufacturers have stopped altogether, or at the very least scaled back their production of plasma screens and focused on LED and OLED.
But plenty of plasma TV aficionados still exist and there is a thriving market in second hand plasma TVs for sale. Such fans will still point together the perceived advantages of plasma technology, such as their ability to produce deeper blacks and a superior contrast ratios.
Certainly when compared to LCD models, viewing angles of plasma TVs are better - especially at wider angles as images have less degradation than LCDs. Plasmas often have less obvious and visible motion blur and benefit from high refresh rates and particularly quick response times - making fast paced action especially good to view on a second hand plasma TV.
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