As stated before ( 2.1.2
The biggest single deficiency in output devices appears in the spatial vision stimuli, as displays capable of covering a high-resolution wide field of view and especially of 3D visualization are uncommon. The display resolution will be still growing and its aspect ratio may change in the future to the 16:9 from the current 4:3, allowing for greater perceptual involvement. However, stereoscopic and 3D visualization need new solutions to become practical (the difference between the stereoscopic vision and 3D is that in the latter motion parallax is carried on, that is the objects will look differently from different angles of view). The lack of spatial effects has diminishing effect on the sensation of reality and involvement in the content of the scene. A more advanced aspect of this problem is the lack of full immersion in visual scenes, which is being tried to be solved with virtual reality devices. The virtual reality technology in its present form is nonergonomic in the sense that it can be used only for a limited time during one session. Wide-field high-resolution visualization with spatial effect would be optimal from the ergonomic point of view.