A movable display device and its display method, and a robot having the same

The present invention relates to a movable display device and a robot, and relates to the display method, and more particularly, to a display method of having a device for displaying an image according to the user's point of view a robot having the same. The present invention to accomplish this is to the user as a zoom to install that it can move the apparatus for displaying an image according to the user's point of view, and by installing the movable display device on a robot with mobility and motion of the robot accurately displaying an image according to the user's point of view can provide more convenient and extension services, and, by changing the displayed image according to the user's changing point is able to receive service in a three-dimensional image is felt through the display device in two dimensions.