Abstract
In order to minimize moiré patterns in autostereoscopic parallax displays, the optical component, which is used for forming viewing zones, is analyzed with varying period and slant angle. First, horizontal-parallax autostereoscopic displays (HPAD) can be approximated as the superposition of three corresponding binary gratings. Referring to the unification of indicial equation method and Fourier analysis, a singular state and two stable moiré-free states are obtained according to the superposition of the equivalent grating of LCD and special radial grating. Two stable moiré-free states are valid for HPAD. For full-parallax autostereoscopic displays (FPAD), a special radial grid grating is introduced to simulate a 2D optical component with progressively varying period and slant angle. Similarly, two corresponding stable moiré-free states for FPAD can be used for eliminating moiré patterns.
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