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14 May 2002 Color filter with optical activity in PDLC
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Proceedings Volume 4658, Liquid Crystal Materials, Devices, and Applications VIII; (2002)
Event: Electronic Imaging, 2002, San Jose, California, United States
Since recent years some activity has developed and characterized the field of research on polymers dispersed liquid crystals (PDLC's). They are useful for a variety of electro-optical applications including windows, displays and other devices. We presented a color filter with PDLC optical activity. This PDLC device was doped with cholesteric liquid crystal. This substance rotates the plane of polarization of a beam of light traversing through them and they are said to be optically active. The mixtures make an uniform behavior pitch in each micro-droplet of the PDLC. The scattering do not destroyed the optical activity of the cholesteric liquid crystal. It is not necessary to observed colors by reflection; we can observe them by across linear polarizers. When the PDLC is on, the colors disappear and when the PDLC is off, colors return.
© (2002) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Mario Perez-Cortes, Arturo Olivares-Perez, Jose Luis Juarez-Perez, Maria Rocio Gomez-Colin, Bernardina Pinto-Iguanero, and Mauricio Ortiz-Gutierrez "Color filter with optical activity in PDLC", Proc. SPIE 4658, Liquid Crystal Materials, Devices, and Applications VIII, (14 May 2002);

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