Abstract: An electronic device such as a head-mounted display or other display system may have a transparent display. The transparent display may be formed from a transparent display panel or a display device that provides images to a transparent optical coupler. A user may view real-world objects through the transparent display. Control circuitry can direct the transparent display to display computer-generated content over selected portions of the real-world objects. The head-mounted display may have adjustable components through which the user may view the real-world objects. The adjustable components may include an adjustable light modulator, an adjustable color filter, and an adjustable polarizer. The control circuitry may adjust these components based on information from a front-facing camera that captures images of the real-world objects, based on information from a gaze tracking camera, and based on other input.

Abstract: A head-mounted display includes a display assembly and a head. The head support includes a first hinge portion coupled to a first side of the head-mounted display and a second hinge portion coupled to a second side of the head-mounted display, which are movable between a first and second states. The head support also includes a first elongated portion coupled to the first hinge portion and a second elongated portion coupled to the second hinge portion, which are rigid and movable with the first hinge portion and the second hinge portion, respectively, between the first and second states. A strap portion is flexible, elastic, and extends between the first elongated portion and the second elongated portion. The first elongated portion and the second elongated portion, when in the second state, extend along a rearward side of the display assembly toward each other and do not overlap.