An LED display is a flat panel display that uses an array of LEDs as pixels for the video display. Their brightness allows them to be used outdoors, where they are visible in the sun for shop signs and billboards. In recent years, they have also become widely used in public transport destination signs, as well as variable information signs on motorways.
LED displays can provide general lighting in addition to visual display, such as when used for stage lighting or other decorative (as opposed to informational) purposes. LED displays can offer a higher contrast ratio than a projector and are thus an alternative to traditional projection screens and can be used for large continuous (no visible mesh emerging from the bezels of individual displays) video walls.
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