A display module comprises a support, a plurality of light-emitting elements coupled to the support and a latch mechanism to removeably couple the support to a chassis. The latch mechanism includes a movable member, a latch member, and a linkage mechanism. The movable member is moved from a first position to a second position when magnetically engaged by a tool magnet. The latch member moves between a first latch member position and a second latch member position and can engage a chassis mating structure when in the first latch member position. The linkage mechanism mechanically connects the movable member to the latch member so that they move together such that the latch member is in the first latch member position when the movable member is in the first position and is in the second latch member position when the movable member is in the second position.