1. A method of operating a display device, the method comprising: displaying a first image corresponding to a first frame of first content, wherein the first content is video and the first image includes a target object; receiving, from a second display device, information on a second coordinate of the target object included in a second image corresponding to a second frame of the first content, wherein the second frame is temporally later than the first frame within the first content; acquiring an image tracking the target object from the second image based on the information on the second coordinate of the target object; and displaying the acquired image, wherein the acquired image tracking the target object comprises a region where the target object is located within the second image acquired by the display device based on the information on the second coordinate of the target object.