Cross-cockpit collimated display
A cross-cockpit collimated display (CCCD) is a display system used in full flight simulators (FFS) to provide the crew with a high-fidelity out-the-window view of the simulated environment around the aircraft. It is called cross-cockpit collimated because the light from a projected distant object is composed of rays that remain parallel or near-parallel across the cockpit (which typically sits two pilots side-by-side).
Source: Wikipedia — Cross-cockpit collimated display (CC BY-SA 4.0)