3d image display device

Provided is a 3D image display device having a compact structure and enabling the images displayed on a screen of the image display device to be enjoyed as 3D images. A 3D image display device (3) has a body case for mounting the image display device, and a mirror device comprising a mirror case formed integrally with the body case and in which a plurality of mirrors are disposed in parallel in the depth direction at prescribed intervals and at prescribed angles. The body case has a guide for guiding the image display device when mounting or removing the image display device, and a position determination unit that, when the image display device is mounted by the guide, appropriately positions on the plurality of mirrors a plurality of image regions formed on the screen of the image display device. When 3D images are displayed in a state where the image display device has been guided by the guide and positioned in an appropriate position by the position determination unit, in a state where the plurality of mirrors have been inclined at a specific angle towards the viewer side with respect to the image display device screen, the images displayed on the plurality of image display regions of the image display device are reflected by the plurality of mirrors and displayed as 3D images to the viewer.