A display mirror assembly for a vehicle includes a front shield having a first side and a second side. A partially reflective, partially transmissive element is mounted on the first side. A rear shield is disposed behind the front shield. A display module is mounted between the front shield and the rear shield and includes in order from the front shield: a display; an optic block; a heat sink having an edge lit PCB mounted along a top edge thereof; and a PCB. The front shield is secured to at least one component of the display module with a first retaining feature and the rear shield is secured to at least one component of the display module with a second retaining feature. A housing at least partially surrounds the partially reflective, partially transmissive element, the front shield, carrier plate, display module, and rear shield.