The digiLED Mirage Curve LED system from displayLED is based on a 500mm square platform, with a range of pixel pitches.
It is available in 5.2mm, 7.8mm, 10.4mm and 15.6mm pitches and all but the 5mm vision can created a faceted curve, with up to a 14.4 degree angle between tiles. A more cost effective option is the MK variant with no curving option.
Both systems are designed for both indoor and outdoor use and are fanlessly cooled. This makes them suitable also for TV studio applications.