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The light field display technology can reconstruct the virtual three-dimensional scene with high precision, providing users with a highly immersive viewing experience without any auxiliary equipment. However, one of the main challenges faced by this technology is the narrow field of view (FOV). In this paper, we present a novel autostereoscopic display utilizing Composite Lenticular Lens Array (CLLa) and Saddle Lens Array (SLa). By utilizing time-division quadruplexing, distinct contents are assigned to different pairs of viewing zones. The optical model of this scheme is simulated by ZEMAX. The FOV is expanded horizontally to 100 degrees and the crosstalk level is reduced to 0.8&#x0025;. It is worth noting that both viewing zones share the same set of pixels, which theoretically results in a spatial resolution one times higher than traditional schemes. Furthermore, this scheme has been partially verified by a 7.9-inch TFT-LCD screen, and experimental results demonstrate an effective expansion of the field of view angle by more than 16.2&#x0025; compared to traditional schemes.

Viewing zone expansion of autostereoscopic display with composite lenticular lens array and saddle lens array