Method and system for controlling an aircraft display

A control system for controlling a display, the control system comprising a palm rest, fixed relative to a structure, the palm rest being provided with:

• a support face configured to receive a palm of a hand of an operator;
• two lateral faces situated on either side of the palm rest, one of the two lateral faces being reachable by a thumb of the hand resting on the palm rest;
• and
• a front face reachable by at least one other finger of the hand resting on the palm rest,
• wherein the control system comprises the following four controls:
• at least one wheel projecting from one lateral face among the two lateral faces, the wheel being provided with at least three degrees of freedom, including at least one degree of freedom in rotation, with respect to the palm rest;
• at least one push-button;
• a rotary ring able to rotate relative to the palm rest about a main axis, the rotary ring being positioned on the front face;
• a trackball, arranged at the center of the rotary ring and concentrically to the rotary ring, the trackball being able to rotate relative to the palm rest about two complementary axes distinct from the main axis;
• and
• a computer configured to generate control commands to control the display according to the actions on the four controls.