High-precision measurement of polar anchoring strength and elastic constant ratio using hybrid alignment nematic cell

Takahiro Ishinabe; Yuji Ohno; Tetsuya Miyashita; Tatsuo Uchida

doi:10.1143/JJAP.47.8892

High-precision measurement of polar anchoring strength and elastic constant ratio using hybrid alignment nematic cell

Takahiro Ishinabe, Yuji Ohno, Tetsuya Miyashita, Tatsuo Uchida

ENG - Electronic Engineering

Tohoku University

Research output: Contribution to journal › Article › peer-review

6 Citations (Scopus)

Abstract

The surface polar anchoring strength is the most crucial element which controls the alignment distribution of a liquid crystal (LC) cell. We devised a new measurement method for the surface polar anchoring strength and the elastic constant using a hybrid aligned nematic LC (HAN) cell. We obtained these parameters from the measurement of the angle dependence of the phase difference and the amplitude ratio in the direction perpendicular to the alignment plane of a HAN cell and confirmed that these parameters can be measured with a high degree of accuracy.

Original language	English
Pages (from-to)	8892-8897
Number of pages	6
Journal	Japanese Journal of Applied Physics
Volume	47
Issue number	12
DOIs	https://doi.org/10.1143/JJAP.47.8892
Publication status	Published - 2008 Dec 19

Keywords

Elastic constant ratio
Hybrid alignment
Liquid crystal
Polar anchoring strength

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10.1143/JJAP.47.8892

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abstract = "The surface polar anchoring strength is the most crucial element which controls the alignment distribution of a liquid crystal (LC) cell. We devised a new measurement method for the surface polar anchoring strength and the elastic constant using a hybrid aligned nematic LC (HAN) cell. We obtained these parameters from the measurement of the angle dependence of the phase difference and the amplitude ratio in the direction perpendicular to the alignment plane of a HAN cell and confirmed that these parameters can be measured with a high degree of accuracy.",

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AU - Miyashita, Tetsuya

AU - Uchida, Tatsuo

PY - 2008/12/19

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N2 - The surface polar anchoring strength is the most crucial element which controls the alignment distribution of a liquid crystal (LC) cell. We devised a new measurement method for the surface polar anchoring strength and the elastic constant using a hybrid aligned nematic LC (HAN) cell. We obtained these parameters from the measurement of the angle dependence of the phase difference and the amplitude ratio in the direction perpendicular to the alignment plane of a HAN cell and confirmed that these parameters can be measured with a high degree of accuracy.

AB - The surface polar anchoring strength is the most crucial element which controls the alignment distribution of a liquid crystal (LC) cell. We devised a new measurement method for the surface polar anchoring strength and the elastic constant using a hybrid aligned nematic LC (HAN) cell. We obtained these parameters from the measurement of the angle dependence of the phase difference and the amplitude ratio in the direction perpendicular to the alignment plane of a HAN cell and confirmed that these parameters can be measured with a high degree of accuracy.

KW - Elastic constant ratio

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KW - Liquid crystal

KW - Polar anchoring strength

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High-precision measurement of polar anchoring strength and elastic constant ratio using hybrid alignment nematic cell

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Keywords

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