A method includes obtaining, by a head mounted display, a trigger instruction and determining coordinates of a line of sight focus of a user on a screen of a portable electronic device, where the trigger instruction is used to instruct the head mounted display to perform a display operation, sending the coordinates to the portable electronic device, when the coordinates trigger the portable electronic device to determine that an object corresponding to the coordinates can be processed by the portable electronic device, obtaining, by the portable electronic device, related content of the object, obtaining the related content of the object of the portable electronic device, and displaying the related content of the object on a virtual screen.