US Patent 9335547 Head-mounted display device and method of controlling head-mounted display device

A transmissive head-mounted display device includes an image display unit that generates image light representing an image, allows a user to visually recognize the image light, and transmits outside scenery when worn on a head of a user, a detection unit that detects at least one of a line-of-sight direction of the user and a shielding object that is located at a predetermined distance from an eye of the user and shields a line of sight of the user, and a control unit that performs control of the image light based on the detected detection result.