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14 May 2002 Bistable reflective cholesteric liquid crystal display with pixelated colors
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Proceedings Volume 4658, Liquid Crystal Materials, Devices, and Applications VIII; (2002) https://doi.org/10.1117/12.467460
Event: Electronic Imaging, 2002, San Jose, California, United States
Abstract
We report the fabrication of a bistable, reflective cholesteric liquid crystal display (CLCD) with pixelated colors. The bistable color CLCD is prepared, instead of using stacked color panels, by the formation of polymer barrier walls at inter-pixel areas and color tuning with a tunable chiral material (TCM), whose chirality can be rendered and reduced by exposing to various amount of UV light at a selected wavelength. The polymer barrier walls are formed at the inter-pixel areas by a photopolymerization-induced phase separation via a photomask. Some of the blue color pixels are selectively changed to reflect the green or red color by exposing the panel to various amount of UV light with the assistance of a set of photomasks. The electro-optical study of a CLCD with pixilated colors reveal that the bistable switching behavior is retained with variation in switching voltages depending on the color of cholesteric pixels.
© (2002) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
J. Cho, U. Mueller, F. Vicentini, Y. Lin, and Liang-Chy Chien "Bistable reflective cholesteric liquid crystal display with pixelated colors", Proc. SPIE 4658, Liquid Crystal Materials, Devices, and Applications VIII, (14 May 2002); https://doi.org/10.1117/12.467460
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