HoloWS · Large-field-of-view large-size 3D holographic displays using wave-front shaping of multiple light scattering fields (HoloWS)

Large-field-of-view large-size 3D holographic displays using wave-front shaping of multiple light scattering fields (HoloWS)

Holographic display is considered the holy-grail of three-dimensional (3D) auto-stereo displays because it generates arbitrary wavefronts providing imagery with all the 3D visual cues. Currently, holographic displays can be also widely considered as the ultimate 3D visualization technology. Holographic display has great market potential for various applications in the future, such as Holographic AR/VR, Holographic medical data, Holographic interactive displays, and Holographic 3D maps. The global holographic display market will witness a sharp increase over the next few years because the growing use of holographic displays in numerous industrial verticals is a major factor driving the growth of the universal holographic display market. To create high-performance, dynamic 3D holographic displays with a large size and wide field-of-view angle (FOVA), a spatial light modulator (SLM) should be enough good to display a large optical extent (the product of size and FOVA) hologram. However, the information content of a hologram with a large optical extent is much greater than the display capabilities of current SLMs due to these SLM’s low space bandwidth product (SBP)(a small diffraction angle range and limited pixel number limiting the FOVA and holographic image size). Therefore, the SLM’s low display capabilities hinder the realization of dynamic 3D displays of holograms with a large optical extent. To solve the above issue, the HoloWS project would like to develop a novel holographic display method based on the wavefront shaping of multiple light scattering fields to augment both limited viewing angle and image size without the aforementioned drawbacks. The goal of HoloWS is to develop novel holographic displays with wavefront shaping of multiple light scattering fields through based on optical-transfer-function (OTF)-engineering metasurfaces to break the constant constrain of the product between the field-of-view and size, a thus far unaddressed issue in holography. This could extend the scope of holography to new settings, as well as providing it with new tools to attack old problems.

Data: CORDIS, © European Union