Title

Periodically Aligned Liquid Crystal: Potential Application For Projection Displays

Keywords

Circular polarization; Diffractive displays; Liquid crystals

Abstract

A nematic liquid crystal (NLC) layer with the anisotropy axis modulated at a fixed rate q in the transverse direction is considered. If the layer locally constitutes a half-wave plate, then the thin-screen approximation predicts 100% efficient diffraction of a normal incident wave. The possibility of implementing such a layer via anchoring at both surfaces of a cell with thickness L is studied as a function of parameter qL, and threshold values of this parameter are found for a variety of cases. Distortions of the structure of the director in comparison with the ideal profile are found via numerical modeling. Freedericksz transition is studied for this configuration. Coupled-mode theory is applied to light propagation through such a cell allowing to account for walk-off effects and effects of nematic distortion. In summary, this cell is suggested as a means for projection display; high efficiency is predicted.

Publication Date

8-1-2006

Publication Title

Molecular Crystals and Liquid Crystals

Volume

451

Issue

1

Number of Pages

1-19

Document Type

Article

Personal Identifier

scopus

DOI Link

https://doi.org/10.1080/154214090959957

Socpus ID

33645705646 (Scopus)

Source API URL

https://api.elsevier.com/content/abstract/scopus_id/33645705646

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