Take 4096 LEDs, 64 RGB microcontrollers and four Atari joysticks, throw them (with some degree of accuracy) at a coffee table, and you might get this: a four-way Pong table. The whole top surface of ...
Most of us have seen slowly-moving dark bands or thin lines when shooting video with large LED displays in the frame. The LED screen could be the focus of the shot or just in the background, but ...