Highly Accurate Method for Measuring Ordinary and Extraordinary Refractive Indices of Liquid Crystal Materials, Cell Thickness, and Pretilt Angle of Liquid Crystal Cells Using Ellipsometry
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概要
- 論文の詳細を見る
A new method for measuring the ordinary and extraordinary refractive indices of liquid crystal materials with high accuracy was devised by considering the multiple interferences in the liquid crystal cell. Refractive indices, liquid crystal cell thickness, and pretilt angle can be obtained from the numerical fitting between the measured and calculated values of the wavelength–amplitude ratio characteristics at one incidence and the wavelength–phase retardation characteristics at three incidences. We also devised a new extended Jones matrix method that considers multiple interferences. We experimentally confirmed the validity of our new method: the multiple-interference tri incidence (MITI) method. Highly accurate parameters can be obtained using the MITI method, and it is effective for the design of high-quality liquid crystal displays.
- Published by the Japan Society of Applied Physics through the Institute of Pure and Applied Physicsの論文
- 2009-05-25
著者
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Uchida Tatsuo
Department Of Chest Surgery Aichi Cancer Center Aichi Hospital
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Miyashita Tetsuya
Department Of Electronic Engineering Faculty Of Engineering Tohoku University
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Ishinabe Takahiro
Department of Electronic Engineering, Graduate School of Engineering, Tohoku University, Sendai 980-8579, Japan
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Ohno Yuji
Department of Electronic Engineering, Graduate School of Engineering, Tohoku University, Sendai 980-8579, Japan
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Miyashita Tetsuya
Department of Electronic Engineering, Graduate School of Engineering, Tohoku University, Sendai 980-8579, Japan
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Uchida Tatsuo
Department of Electronic Engineering, Graduate School of Engineering, Tohoku University, Sendai 980-8579, Japan
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