Viewing a 3D hologram gives you a sense of the real scene created in front of you and a feeling of “being there.” Displaying a hologram on a digital screen traditionally has been a bottleneck due to limitations imposed by computational load and display screens. This article describes a device capable of displaying a true three-dimensional image on a large 350-mm screen. The current prototype uses small portions of a hologram to reconstruct a required scene from the full hologram by limiting the information that reaches the viewer’s eye, essentially creating “viewing windows.” This is achieved by cleverly tracking the viewer’s eyes and limiting the requirement to display the complete data on the display screen that is not within the viewing window. A true 3D holographic display, such as this one, alleviates the visual discomfort and fatigue of the eye’s accommodation and convergence that is inherent in the conventional stereoscopic 3D displays. Improvements in image quality, brightness, and viewing experience are expected in the future development of the technology.
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