Most people would argue that a LED TV produces superior quality to a LCD TV. While this is probably true, actually a LED TV is not actually a different type of television at all. A LED TV is simply a LCD television that uses an LED backlight.
The first and the standard LCD televisions used Cold Cathode Fluorescent Lamps (more commonly referred to simply as CCFL) as a means of creating the backlight. More recently, manufacturers have replaced CCFl with LED backlights.
Used LED TVs for sale tend to be even thinner than LCD models and are lighter too. The reason for this is that with LED the light source goes around the screen edges and takes a layer of hardware out of the mix. But the biggest advantage to LED TVs is improved picture quality. Local dimming, which ensures that specific areas of the screen can be dark or lit separately produces the absolute best quality as it creates even deeper quality to blacks and brighter, vivid colours.
So with LED technology deeper black and brighter whites can occur together on the same frame on the screen and the improved contrast ratio that is gained is a real plus point in terms of picture quality with second hand LED TVs for sale. LEDs can be turned off if required which can be a great effect, especially when watching a movie.
The beauty of a used LED TV is that the limitations of a LCD television's ability to create extreme shade and brightness are no longer an issue.
As LEDs are usually placed around the edge of the screen, the light shines across the back of the screen and is bounced towards the viewer by specifically placed and angled mirrors, with fantastic results.
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