Eye movement detecting device, electronic device and system

A display method for a wearable device comprising a detector configured to detect a convergence angle at which a line of sight of a right eye of a user wearing the wearable device and a line of sight of a left eye of the user intersect, the display method comprising:

• displaying a first binocular augmented reality image including a first right image and a first left image with a first interval between the first right image and the first left image when the detector detects a first convergence angle;
• and
• displaying a second binocular augmented reality image including a second right image and a second left image with a second interval between the second right image and the second left image when the detector detects a second convergence angle, wherein
• the first interval is related to the first convergence angle,
• the second interval is related to the second convergence angle,
• the second convergence angle is different from the first convergence angle,
• the second binocular augmented reality image is different from the first binocular augmented reality image,
• the first convergence angle is detected when the use looks at a first distance,
• the second convergence angle is detected when the use looks at a second distance,
• a display position of the first binocular augmented reality image is based on the first distance, and
• a display position of the second binocular augmented reality image is based on the second distance.

A system comprising:

• a wearable device;
• and
• a mobile terminal configured to send a binocular augmented reality image to the wearable device, wherein
• the binocular augmented reality image includes a right image and a left image;
• and
• the wearable device comprises:
• a detector configured to detect a convergence angle at which a line of sight of a right eye of a user wearing the wearable device and a line of sight of a left eye of the user intersect;
• and
• a display configured to display a first binocular augmented reality image and a second binocular augmented reality image, wherein
• the first binocular augmented reality image includes a first right image and a first left image with a first interval between the first right image and the first left image when the detector detects a first convergence angle,
• the first interval is related to the first convergence angle,
• the second binocular augmented reality image includes a second right image and a second left image with a second interval between the second right image and the second left image when the detector detects a second convergence angle,
• the second interval is related to the second convergence angle,
• the second convergence angle is different from the first convergence angle,
• the second binocular augmented reality image is different from the first binocular augmented reality image,
• the detector is configured to detect the first convergence angle when the use looks at a first distance,
• the detector is configured to detect the second convergence angle when the use looks at a second distance,
• a display position of the first binocular augmented reality image is based on the first distance, and
• a display position of the second binocular augmented reality image is based on the second distance.