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Proceedings Paper

Structure of liquid crystals in a confined geometry
Author(s): Luz J. Martinez-Miranda; Elisabeth Smela; Hang Liu
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Paper Abstract

We present the results of our structural measurements on smectic liquid crystal films deposited on photolithographed gratings on both glass and silicon substrates. These gratings have periods in the range of 664 nm - 200 micrometers , and the depths of up to 2 micrometers . We found that both silicon and glass gratings are able to align the liquid crystal in the period range 664 nm - 24 micrometers , as determined using both x-ray diffraction and optical microscopy. This result sets upper and lower boundaries for grating preparation. The results of our measurements were fit to a multilayer orientational model in order to determine the thickness of the observed aligned layer. We discuss the possible impact of our results on large area display packaging and preparation.

Paper Details

Date Published: 4 April 1994
PDF: 10 pages
Proc. SPIE 2175, Liquid Crystal Materials, Devices, and Applications III, (4 April 1994); doi: 10.1117/12.172122
Show Author Affiliations
Luz J. Martinez-Miranda, Univ. of Pennsylvania (United States)
Elisabeth Smela, Univ. of Pennsylvania (United States)
Hang Liu, Univ. of Pennsylvania (United States)


Published in SPIE Proceedings Vol. 2175:
Liquid Crystal Materials, Devices, and Applications III
Ranganathan Shashidhar, Editor(s)

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