Compact large size colour 3D dynamic holographic display using liquid crystal display panel

Large three-dimensional (3D) scene reconstruction is a challenge for current colour holographic displays. In this study, we develop a compact display system to reconstruct a large 3D scene using a 21-inch liquid crystal display (LCD) panel that serves as a spatial light modulator (SLM). We utilise a Fresnel lens instead of a conventional lens to reduce the complexity of the system. A spatial multiplexing colour filter attached to the SLM is used to simplify the structure of the colour display. Additionally, an independent block holographic algorithm is developed to record accurate depth information. Numerical simulations and optical experiments are performed to verify the proposed system. The optically reconstructed 3D colour scene is 480 mm × 300 mm × 500 mm in size. Therefore, the proposed display system represents development toward a commercial product for its low device requirements.