Direct View LED displays eliminate the LCD panel, instead using a surface array of LEDs as the actual display pixels. This allows for incredible contrast, vibrant colors, and brightness levels several times that of LCDs. Direct View LED displays can also be made virtually any size, including large sizes of 100 feet or more, making them the

LED can be broken up into two further major categories: direct or back-lit LED and Edge-lit LED. Direct LED. Direct LED displays are backlit by an array of LEDs directly behind the screen. This enables focused lighting areas, meaning specific cells of brightness and darkness can be displayed more effectively for better picture quality. Edge-lit

LED Waveguides (edge emitting LED) • The edge-emitting LED’s waveguide (a) supports only certain transverse modes, whose field distributions are shown in (b). In practice, only the first mode is allowed. It is not completely confined to the active layer, thus its absorption is reduced.

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difference between edge led and direct led