ROE of China had a focus on the advantages of black LEDs. The company was the first to talk to us about this topic at last year’s event and this year it had set up a display with a very bright lamp with adjustable output. The firm was able to show how in low ambient, both a display with black LEDs and one with regular LEDs looked good. However, turning up the lamp showed a big degradation in the contrast of the regular LED display. The company was also showing its Carbon series which are for indoor or outdoor use and is currently in 8mm – used for a recent U2 tour. There was also a new touring dolly to help to speed assembly and logistics. Cabinets can be loaded two at a time to speed packing.
The company also showed new LED bar displays which use a black diffuser to get high contrast and so ‘off is off’. Dual LEDs are installed to make the illumination very even. The output is 7,000 cd/m² and the modules are certified to IP65. Lengths available are 30/ 60/ 90 and 120 cm and the units can be rotated, with the controller automatically taking this account for simple image mapping. The LEDs were used for the MTV Awards presentation in Europe.
The firm is also developing curved corner modules and external corners.