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Research illustrates 3D-printed diffraction gratings improving color displays through additive mixing.
Structural Coloration In the Research Article (e14857), Jung Woo Lee, Jaeyeon Pyo, and co-workers illustrate 3D-printed multi-layer nanowire diffraction gratings for advanced structural coloration. A nanoscale nozzle directly writes orthogonally aligned nanowire arrays for illumination angle-selective light diffraction. Superimposing these gratings enables additive colour mixing to produce extra-spectral colours, allowing a significant increase in pixel density for multi-channel colour displays.
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Bae et al. (2026) studied this question.
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