PDLC optical displays with LC encapsulated in polymerized vesicles

Andrzej Teperek; Wojciech Czajkowski; Wojciech Fabianowski

doi:10.1117/12.215574

2 August 1995 PDLC optical displays with LC encapsulated in polymerized vesicles

Andrzej Teperek, Wojciech Czajkowski, Wojciech Fabianowski

Proceedings Volume 2372, Liquid Crystals: Materials Science and Applications; (1995) https://doi.org/10.1117/12.215574
Event: Liquid Crystals: Materials Science and Applications, 1994, Zakopane, Poland

Abstract

Optical displays with polymer dispersed liquid crystals have a diffused interphase region between LC droplets and polymer, composed mostly from LC swelling polymer matrix. This interphase region has a different optical characteristic comparing to the bulk material inside LC droplets. For the purpose of reducing volume occupied by the interphase region, we have adopted a procedure used in the liposome reserach. LC with dichroic dye was encapsulated in the vesicles formed by the polymerizable amphiphilic compound Dimethyldioctadecylammonium Methacrylate. After encapsulation, vesicles with LC/dye system inside were UV polymerized and dispersed in the poly(vinyl alcohol) PVA matrix. Changes of the optical transmittances of obtained thin films versus applied electrical field showed symmetrical s-shaped curves but low transmittance changes.

Citation Download Citation

Andrzej Teperek, Wojciech Czajkowski, and Wojciech Fabianowski "PDLC optical displays with LC encapsulated in polymerized vesicles", Proc. SPIE 2372, Liquid Crystals: Materials Science and Applications, (2 August 1995); https://doi.org/10.1117/12.215574

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