Holographically formed liquid‐crystal/polymer device for reflective color display

Abstract

Abstract— A new optical device whose reflection intensity can be electrically controlled at specific wavelengths has been demonstrated. This device has a liquid‐crystal/polymer multilayer structure formed by holography. The diffraction efficiency for Ar‐laser light is about 70%. The reflection intensity can be electrically controlled with a response time of less than 1 ms.

Reflective liquid crystal color display technologies

“…HPDLC is a volume hologram of PDLC [19,20]. The volume hologram theoretically exhibits 100% reflectance for a specific wavelength and has high wavelength selectivity.…”

Mueller matrix method for determining morphology of polymer dispersed liquid crystal

“…The PDLC combines optical properties typical for the LCs with such general properties of polymer matrices as plasticity, flexibility, lack of fluidity, and reliability. In addition, PDLCs are well governed by electric fields and are used, e.g., in displays [2,3], windows with controlled transparency [2,4], light shutters [2,5] and systems including controlled microlenses for coupling radiation into fibres [2,5]. Widespread utilisation of PDLC composites requires examination of their morphology, in particular the shapes and sizes of anisotropic LC droplets and isotropic polymer part.…”

Electrically Switchable Two-Dimensional Penrose Quasi-Crystal

“…One-dimensional gratings have been prepared for displays applications [11], telecommunications [12,13], strain gauges [14], beam steering [15], and lasing [16,17].…”