Display apparatus, movable body apparatus, producing method of the display apparatus, and display method

A producing method of a display apparatus for displaying a virtual image in a display area on a display surface of a transmissive reflector so that the virtual image overlaps with scenery outside a movable body, the producing method comprising:

• setting a reference viewpoint in the movable body;
• and
• setting a position of the display area of the virtual image to include a given distance range in the scenery from the reference viewpoint so that a difference between a first convergence angle to a target object present in the given distance range and a second convergence angle to the virtual image displayed in the display area on the display surface of the transmissive reflector is at most one degree.

A display method for displaying a virtual image in a display area on a display surface of a transmissive reflector so that the virtual image overlaps with scenery outside a movable body, the display method comprising:

• setting a reference viewpoint in the movable body;
• setting a position of the display area of the virtual image to include a given distance range in the scenery from the reference viewpoint so that a difference between a first convergence angle to a target object present in the given distance range and a second convergence angle to the virtual image displayed in the display area on the display surface of the transmissive reflector is at most one degree;
• displaying the virtual image in the display area having the set position.