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Proceedings Paper

Device properties and polar anchoring of nematic molecules at photodimerized surfaces
Author(s): Devanand K. Shenoy; Kirsten A. Grueneberg; Jawad W. Naciri; Ranganathan Shashidhar; Y. Nastishyn; R. Pollack; Oleg D. Lavrentovich
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Paper Abstract

A photo-dimerized monolayer (PDML) has been recently developed by us for liquid crystal alignment. Electro-optic properties of a single pixel prototype device with the PDML alignment layer have been measured. Data on the contrast, threshold voltage and slope of the response curve are presented which demonstrate the efficacy of the PDML layer for LCD applications. In addition, the polar anchoring energy was measured for PDML layers differing in the chemical composition. The ability to tune this anchoring energy through chemical modification is demonstrated. It is shown that the anchoring strength is comparable to that obtained for liquid crystal cells using the mechanically rubbed polyimide alignment layer.

Paper Details

Date Published: 26 March 1999
PDF: 7 pages
Proc. SPIE 3635, Liquid Crystal Materials, Devices, and Applications VII, (26 March 1999); doi: 10.1117/12.343869
Show Author Affiliations
Devanand K. Shenoy, Naval Research Lab. (United States)
Kirsten A. Grueneberg, Geo-Centers, Inc. and Naval Research Lab. (United States)
Jawad W. Naciri, Naval Research Lab. (United States)
Ranganathan Shashidhar, Naval Research Lab. (United States)
Y. Nastishyn, Kent State Univ. (United States)
R. Pollack, Kent State Univ. (United States)
Oleg D. Lavrentovich, Kent State Univ. (United States)

Published in SPIE Proceedings Vol. 3635:
Liquid Crystal Materials, Devices, and Applications VII
Ranganathan Shashidhar, Editor(s)

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