One of the ideas about patents is that the idea should be non obvious.
I saw this sort of display guidance 15 years ago on video games.
TomTom files patent for camera sat nav
By James Sherwood
Published Wednesday 4th July 2007 12:20 GMTTomTom is attempting to move up a gear in the in-car sat nav biz. It recently filed a patent for a GPS device that incorporates a camera to show the driver exactly where to turn off the road ahead.
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Here is the picture of their device:
Does anyone remember the specific video game that had these sorts of arrows?