DESCRIZIONE
To provide a head-mounted display that can be mounted on a helmet which can take various shapes, that permits adjustments of a mounting position with respect to the helmet to any desired position, that facilitates mounting and removal, and that permits disposition of a display at any position. A head-mounted display includes a mounting portion that can be removed from a helmet, a connector that is connected with the mounting portion and that allows a position to be freely adjusted. A display is disposed at a distal end of the connector, the display includes a positioner, and a positioned portion at which the positioner is positioned is fixed to the helmet such that a position can be freely adjusted.