Aperiodic Cell Pattern for Moiré Reduction in Appearance Devices

The patent applies asymmetry by using an aperiodic cell pattern instead of a periodic one. The cells have varying shapes, sizes, and orientations arranged in a non-repeating pattern, which eliminates the formation of moiré effects when viewed against periodic structures. This asymmetric arrangement maintains manufacturing feasibility while significantly improving aesthetic appearance by removing the harmful moiré artifacts.

The patent applies local quality by designing cells with varying local characteristics (different shapes, sizes, and orientations) that are specifically adapted to their positions in the overall pattern. This local variation allows the aperiodic pattern to naturally accommodate curvature and deformation when applied to curved surfaces, as each cell can deform independently without creating uniform moiré patterns. The spacer structure is also designed with varying thickness to maintain proper cell spacing during deformation.

The patent applies local quality by creating a heterogeneous cell structure where cells of different sizes coexist in the aperiodic pattern. Smaller cells are strategically placed in regions requiring faster switching or finer detail, while larger cells occupy areas where slower switching is acceptable. This local variation in cell size optimizes the trade-off between coverage area and switching speed across different regions of the device.