An interior rearview mirror assembly for a vehicle includes a prismatic mirror element and a display element. The prismatic mirror element includes a wedge-shaped prism element having a front surface and a rear surface and a second element having a transflective reflector on a first surface thereof....http://www.google.de/patents/US7338177?utm_source=gb-gplus-sharePatent US7338177 - Mirror reflective element for a vehicle
