Remember Top Gun?
I’ve always been curious how those displays worked. Were they splashed across the windshield? If so, what projected the image up there and where was the projector located? How did it work?
There is, in fact, a separate screen that drops down in front of the pilots and serves as an interface between the pilot and the clear view out of the windshield in the front.
You can see the display screen clearly in this photograph:
Here is a good view of the HUDS system itself: