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Proceedings Paper

Color filter with optical activity in PDLC
Author(s): Mario Perez-Cortes; Arturo Olivares-Perez; Jose Luis Juarez-Perez; Maria Rocio Gomez-Colin; Bernardina Pinto-Iguanero; Mauricio Ortiz-Gutierrez
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Paper Abstract

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.

Paper Details

Date Published: 14 May 2002
PDF: 7 pages
Proc. SPIE 4658, Liquid Crystal Materials, Devices, and Applications VIII, (14 May 2002); doi: 10.1117/12.467454
Show Author Affiliations
Mario Perez-Cortes, Instituto Nacional de Astrofisica Optica y Electronica (Mexico)
Arturo Olivares-Perez, Instituto Nacional de Astrofisica Optica y Electronica (Mexico)
Jose Luis Juarez-Perez, Instituto Nacional de Astrofisica Optica y Electronica (Mexico)
Maria Rocio Gomez-Colin, Instituto Nacional de Astrofisica Optica y Electronica (Mexico)
Bernardina Pinto-Iguanero, Instituto Nacional de Astrofisica Optica y Electronica (Mexico)
Mauricio Ortiz-Gutierrez, Univ. Michoacana de San Nicolas de Hidalgo (Mexico)


Published in SPIE Proceedings Vol. 4658:
Liquid Crystal Materials, Devices, and Applications VIII
Liang-Chy Chien, Editor(s)

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