Low-leakage off-angle in E-polarizers

— New thin‐film polarizers have been developed for use in optical applications. The polarization technology is based upon liquid‐crystalline material built from dichroic dyes that can be deposited on virtually any substrate. Theoretical calculations and experimental results on viewing‐angle characte...

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Bibliographic Details
Published in:Journal of the Society for Information Display 2001-06, Vol.9 (2), p.101-105
Main Authors: Lazarev, Pavel I., Paukshto, Michael V.
Format: Article
Language:English
Subjects:
contrast ratio
leakage of light
liquid-crystal polarizers
ordinary- and extraordinary-type polarizers
Polarization
refractive index
transmittance
viewing angle
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Summary:— New thin‐film polarizers have been developed for use in optical applications. The polarization technology is based upon liquid‐crystalline material built from dichroic dyes that can be deposited on virtually any substrate. Theoretical calculations and experimental results on viewing‐angle characterization of conventional O‐type polarizers and new E‐type polarizers are presented. At large viewing angles, the E‐type polarizers demonstrate lower light leakage, higher contrast ratio, and higher efficiency. Spectral performance depends on the composition of the dye mixture that is used to produce the polarizer coating. The new polarizers exhibit enhanced viewing angle and more design flexibility, providing new opportunities for the liquid‐crystal‐display industry.
ISSN:1071-0922
1938-3657
DOI:10.1889/1.1828769