A vehicular interior rearview mirror assembly includes a mirror head pivotally adjustable about a mirror support. The mirror head includes a mirror reflective element having a transflective mirror reflector. A video display device is disposed rearward of the mirror reflective element. A touch sensor is disposed at the mirror reflective element and is associated with circuitry at a flexible printed circuit of the video display device. The video display device is operable to display video images captured by a rearward viewing camera of the vehicle. Light emitted by the video display device passes through the transflective mirror reflector for viewing of displayed video images by the driver of the vehicle viewing the mirror reflective element. The mirror reflective element, at the reflective region of the transflective mirror reflector, reflects at least 40 percent of visible light incident at the front side of the mirror reflective element.