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LED screen Definition

LED TV is a type of LCD tv that utilizes light-emitting diodes (LEDs) to backlight the display rather than the cold cathode fluorescent lights (CCFLs) used in standard LCD tvs. Light-emitting Diode TVs are far more officially called LED-backlight LCD tv.

An LED is a semiconductor product that gives off noticeable light whenever an electric current passes through it. The light isn't particularly bright, in many LEDs it is monochromatic, occurring at an individual wavelength. When compared to fluorescent lights, LEDs have actually considerably reduced energy demands and convert capacity to light more efficiently so less is lost as heat and focus it much more specifically making sure that there was less light leakage, that could cause fuzziness. An LED also lasts considerably longer than almost every other lighting effects technologies.

You will find three different LED technologies used. The essential popular of this three is edge-lit Light-emitting Diode, by which white LEDs are situated all over side of the display and a diffusion panel employed to illuminate the display uniformly. Edge-lit Light-emitting Diode displays can be quite thin. Another kind is powerful RGB LED, which are placed behind the panel. RGB LEDs be able to focus on places for dimming more specifically, which contributes to truer reproduction of blacks and whites. In the third kind of screen, full-array LED, LEDs are placed behind the panel much like the direction they are with RGB LED shows but there is no capacity for localized dimming.

Vendors of LED TVs consist of Kogan, LG, Panasonic, Philips, ProScan, Samsung, Toshiba and Vizio.

Benefits: make use of less energy and produce less heat than plasma or any other LCD TVs. RGB LED: Brighter, sharper show and much better comparison ratio than other LCD TVs. Edge-lit LED: Thinner structure.

Source: whatis.techtarget.com
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