Membrane Assembly for Optics in a Virtual Reality (VR) Display Device

Aspects of the present disclosure are directed to a membrane assembly including a flexible membrane that seals an interior of a head-mounted display device from foreign objects and foreign materials. The head-mounted display device can be a virtual reality (VR) head-mounted display device. The membrane assembly can include a flexible membrane and bezels attached to the flexible membrane, and configured to be attached to a frame and optics modules of the head-mounted display device. The flexible membrane is configured to extend around lenses respectively mounted in the optics modules. The optics modules can be configured to move in the frame to change and interpupillary distance (IPD) of the lenses. An inner surface of the flexible membrane includes surface deviations configured to deform when the optics modules move, thereby allowing the flexible membrane to deform, without impeding movement of the optics modules, while sealing the interior of the head-mounted display device.