At the Beijing Institute of Technology, researchers have crossed a threshold that has long defined the limits of night vision: the ability to see the invisible not merely as brightness, but as color. By bonding a quantum dot infrared detector to a carefully engineered dual-layer OLED display, they have created a device that translates the hidden wavelengths of the night into a shifting palette of red and cyan — encoding more of the world's truth into a single glance. It is a small architectural decision, a deliberate energy barrier between two light-emitting layers, that makes the difference b