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Colorful patterns with a black background are realized based on piecewise reflection tuning of cholesteric liquid crystals induced by a newly designed photoresponsive tristable chiral switch. In article number 1704941, Yanlei Yu and co‐workers find that the three stable configurations of the chiral switch endow the system with two continuous and adjacent tuning periods of the reflection, covering...
Cholesteric liquid crystals (CLCs) exhibit selective reflection that can be tuned owing to the dynamic control of inherent self‐organized helical superstructures. Although phototunable reflection is reported, these systems hitherto suffer from a limitation in that the tuning range is restricted to one narrow period and the optically addressed images have to sacrifice one color in the visible spectrum...
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