Noritake are the displays I use.They have a full line with parallel interface, as well as some with a serial interface.Their serial displays are becoming harder to find in small quantities.They seem to pop up on Ebay once a month or so, and for very reasonable prices.As far as optics, after you get the angle correct, they will project very well, even in sunlight.My guess is, its the safety laminate in automotive windshields that helps reflect the image.If mounting options limit the possible angles, you can put a small piece of aluminized(UV protected) window tint in the projection area.