POSITIONING, STABILISING, AND INTERFACING STRUCTURES AND SYSTEM INCORPORATING SAME

A head-mounted display system comprising: a positioning and stabilizing structure constructed and arranged, in use, to hold a display unit in an operational position above a user's face; and an interface structure for the display unit constructed and arranged in a relative relationship with the user's face. The interface structure includes a substantially continuous face-engaging surface adapted to contact a user's face about a perimeter of the user's eyes. The interface structure includes a silicone. The interface is configured and arranged such that forces exerted on the user's face are distributed around its perimeter. The interface structure includes a first compliance at the first region and a second compliance at the second region, where the first region and the second region are configured to surround a perimeter of the interface structure to allow for selective distribution of forces onto a user's face.