Stereoscopic image display device

A stereoscopic image display device comprising:

• a display device having a screen;
• a camera provided in front of the display device to detect the position of a viewpoint of a user who is viewing the display device;
• a rotation device which rotates the display device around a rotation axis;
• and
• an information processing device connected to the display device, the camera and the rotation device to receive the position of the viewpoint of the user and turn the display device by driving the rotation device responsive to movement of the viewpoint in order not to change the direction of the viewpoint relative to the screen of the display device,
• wherein the information processing device controls the display device to display a three-dimensional object which is defined on a world coordinate system which is fixed relative to the real world even when the display device rotates, and
• wherein when the viewpoint is moved, the information processing device controls the display device to display an image of the three-dimensional object as viewed from the moved viewpoint.