Head mounted display system

摘要

An image display device (100) including a body (101) configured to be wearable on a specific portion of a human body; a camera (121) coupled to the body (101) and configured to capture a video; a display unit (151) coupled to the body (101) and configured to display a preview screen for capturing the video; and a controller (180) configured to receive a first input for setting a first region on the preview screen, display a first graphic object indicating the set first region on the display unit (151), capture the video for the first region according to a capture signal, and when a viewing angle of the preview screen including the set first region deviates more than a predetermined reference range, suspend capturing the video and display a second graphic object indicating an extent of the deviation.