Recent Advances and Applications of Holographic 3D Display

Due to the importance of vision in human lives, 3-dimensional (3D) display has become a key and hot topic in the field of information research. With the advancement of computer science technology, holographic 3D display, capable of fully recording and reconstructing the complete wavefront information of 3D scenes, is considered as one of the most ideal 3D display technologies and has long been pursued by researchers. In recent years, substantial breakthroughs have been achieved in holographic 3D display; however, some bottlenecks continue to constrain its applications, such as slow hologram generation speed and limited space-bandwidth product. Here, the technical bottlenecks restricting the further development of holographic display are comprehensively analyzed. The latest development and progress of the key technologies of holographic 3D display are summarized. First, different fast generation methods for computer-generated holograms are analyzed. Then, the latest progress of holographic 3D display with high space-bandwidth product and low speckle noise is summarized. Finally, various application fields of holographic 3D display technology and its future development trends are discussed. This is aimed to summarize and analyze the key issues and progress in holographic 3D display technology and gain a deeper understanding of the cutting-edge developments in this rapidly developing field, providing assistance for its future applications in holographic near-eye display, virtual reality, augmented reality, optical encryption, and other fields.