#4981. Large field-of-view holographic display method with speckle noise suppression based on time multiplexing

July 2026publication date
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Journal’s subject area:
Cultural Studies;
Political Science and International Relations;
Information Systems;
Management Information Systems;
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Abstract:
In this paper, we propose a method to enlarge the field of view (FOV) in holographic display with speckle noise suppression. Different from the traditional method, several subcomputer-generated holograms (sub-CGHs) with large size are generated in the proposed method. Through pixel separation, the recorded object is separated into multiple object point groups. The information of each object point group is recorded on different sub-CGHs with independent initial random phases. In the holographic reconstruction, three spatial light modulators (SLMs) in a planar configuration are used to load the sub-CGHs. The image is reconstructed through time multiplexing. The FOV is enlarged because the light distribution size of each image point is increased. Meanwhile, the speckle noise of the image is suppressed through the average effect and the separation of the adjacent image points. Experimental results prove the feasibility of the proposed method.
Keywords:
field of view; holographic display; speckle noise; time multiplexing

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