An electrochromic mirror includes a housing, a rearview mirror subassembly including a reflector in the housing, and an electrical circuit with switches adapted to interact with electrical systems in the vehicle. An elongated display area is formed in a face of the housing assembly, either under, aside...http://www.google.de/patents/US6420800?utm_source=gb-gplus-sharePatent US6420800 - Rearview mirror with buttons incorporating display
