US Patent 10095275 Band connecting device and head mounted display including the same

A head mounted display device is provided. A head mounted display device includes a main frame including surface formed to face a facial side of a user and an opposite surface on which an external electronic device is mounted; a connecting device connected to the main frame; and a support part connected to the connecting device that fixes the head mounted display device to the facial side of the user. At least a portion of a surface of the connecting device, which is connected to the support part, forms an angle with a direction in which the main frame faces the facial side of the user.