What does a display controller in an EFIS allow the pilot to do?

The display controller in an Electronic Flight Instrument System (EFIS) enables the pilot to choose specific system configurations suitable for the current flight situation. This functionality is crucial because it allows the pilot to customize the information displayed on the screens according to the operational needs—such as selecting navigation sources, modifying display modes for better visibility, or adapting to different phases of flight like takeoff, cruise, or approach.

By configuring the display, the pilot can ensure that the most relevant and critical data is highlighted, enhancing situational awareness and decision-making. The flexibility to adjust these configurations plays a significant role in the overall safety and efficiency of the flight.