Method for adjusting head-mounted device and head-mounted device

A head-mounted device, comprising:

• a main body, wearable by a user;
• a display part, comprising a first monitor and a second monitor located on the main body;
• a detecting part, configured for detecting two pupils of the user;
• an adjusting part, connected to the first monitor and the second monitor;
• and
• a controller, connected to the first monitor, the second monitor, the detecting part, and the adjusting part, the controller causing the head-mounted device to:
• detect either or both of two pupils of a user after the head-mounted device is worn on the user, and output a pupil information;
• receive the pupil information, determine whether the head-mounted device is worn with or without deviation according to the pupil information, and output a first signal in case that the head-mounted device is determined worn with deviation, output a second signal in case that the head-mounted device is determined worn without deviation;
• display a guiding picture by the first monitor and the second monitor in response to the first signal to guide the user to adjust a position of the head-mounted device;
• control the first monitor to gradually fade the guiding picture in response to the head-mounted device being adjusted from a position with deviation to a position without deviation, and control the first monitor to stop showing the guiding picture in response to the head-mounted device is adjusted to the position without deviation, wherein the guiding picture is controlled to display a virtual line shown on a deviated side of the head-mounted device viewed from a user side of the head-mount device;
• measure a pupillary distance of the user in response to the second signal being output;
• define a first range corresponding to the measured pupillary distance, and adjust a distance between the first monitor and the second monitor within the first range.