Transparent Display Panel Layout to Reduce Diffraction Ghosting

The patent applies local quality by making the gaps between sub-pixels within the same pixel column have different sizes. Specifically, odd-numbered sub-pixel gaps differ from even-numbered sub-pixel gaps, creating local variations in the optical path that disrupt the uniform diffraction pattern. This local differentiation reduces the coherence of diffracted light waves, thereby minimizing ghost images while preserving transparency.

The patent employs asymmetry by intentionally creating asymmetric gap distributions between adjacent sub-pixels. The gap sizes alternate between different values (first gap size for odd positions, second gap size for even positions), breaking the symmetric periodicity that would otherwise reinforce diffraction effects. This asymmetric arrangement disrupts the constructive interference of diffracted orders, reducing ghost image visibility.

The patent implements local quality by introducing controlled variations in gap sizes at specific locations within each pixel column. Rather than using uniform gaps throughout, the design specifies that odd-numbered sub-pixel gaps have one dimension while even-numbered sub-pixel gaps have another dimension. This localized differentiation maintains manufacturing feasibility through systematic patterning while effectively reducing diffraction effects.

The patent applies parameter changes by modifying the gap size parameter between sub-pixels. Specifically, the gap size alternates between a first value and a second value along the vertical direction within each pixel column. This parameter variation disrupts the uniform optical path differences that cause strong diffraction, thereby reducing ghost images while maintaining a relatively simple manufacturing approach through periodic patterning.