Displays that project an image that looks 3-dimensional are called 3D displays. The initial model was not really 3D and needed stereoscopic glasses. One major limitation is that the hologram is designed so that it can only be seen from one angle.
But research is underway to create a 3D display that focuses on optical tracking heads and is designed so that they follow the view of the viewers from around the room. Holographic projections are also studied which can be seen from more than one angle. Even though this technology has been around for decades, it will take time before it hits the shelf. You may browse 3d holographic display through https://virtualongroup.com/3d-holographic-displays/ for getting more detailed information about virtual reality.
However, the National Institute of Advanced Industrial Science and Technology in Japan has created a more sophisticated 3D display. They called it the first 'true 3D display'. The overlapping laser beam is used by this technology to create small plasma flashpoints in the air. And the human eye picks the remnants of light. A total of 100 air points are generated by the system.
Production of high-quality content to be ported to display is one of the things that is difficult in making 3D displays. Multiple camera views are required to record 3D images. To convert 2D images into 3D spatial maps, special software is needed. For this reason, it takes a while before the 3D display becomes fully feasible. Another reason is the slow adoption of high definition television, which causes companies to consider choosing where to put their research money. But no matter how long it takes, 3D technology is the future.