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LEDs (light-emitting diodes) have been around for decades, but their introduction into HD TV design and availability on the high street is a fairly recent development. LED televisions are basically LCD TVs with one crucial difference – the handful of traditional back light lamps that illuminate the screen have been replaced by hundreds of smaller LEDs. LED TVs still employ standard LCD TV technology; Light from behind the screen is shone through the television screen's matrix of tiny coloured liquid crystal cells. Signals control each cell, letting varying amounts of colour through, and a picture is built up. LED TVs are slimmer, more energy efficient and picture quality, to date, has generally been impressive. FAST FREE UK MAINLAND DELIVERY ON ALL ITEMS PLUS MANUFACTURERS STANDARD WARRANTY. |
