LED screens are created by an array of LEDs arranged closely together.
It is now common place to see large advertising, stage back drop ligthing to be made up of LED screens. This is largely due to the brighter image that LED screens can provide in comparison to other current video technologies.
LED screens can also be arranged and sychronized to create larger possible screens and differing screen arrangements.
Update: Flexible LED Panels
UPDATE: TBG has been working with LED Panel manufacturers to create a more robust & flexible LED Panel. These are expected to feature at the 2019 G2E.