In this paper, a novel method with high-speed angular steering device is presented to realize high angular resolution forthe multi-projection based multi-view and light field 3D displays. The state-of-art multi-projection based multi-view andlight field 3D displays always employ projector array with multi-layer structure to achieve high angular resolution, butthe projector’s physical size still limits the angular resolution of 3D displays. To enhance the angular resolution of multiviewand light field displays, a special designed angular steering optical device is integrated into the screen part of thedisplay system, which is capable to deflect rays in a limited angular range to increase the density of projectorsequivalently. A high-speed angular steering device is developed to deflect rays in a small angle based on the birefrigenteffect of liquid crystal (LC), which mainly includes cascade structure of the pi cell LC and the birefringent LC microprismarray. Furthermore, the steering angle control of this device can be well synchronized with the frame rate ofprojector array. With time-multiplexing of the steering angle, high angular resolution of multi-view and light field 3Ddisplays with single-layer projector array are implemented. In our experiments, the developed angular steering devicewith steering angles of 0° and ±1° was successfully integrated into twelve-projector based multi-view and light fielddisplay systems to enhance the angular resolution respectively. The experimental results show that the angular resolutionof the two different types of 3D displays is significantly enhanced to provide better visual experience for users.
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