Electrical addressing of polymer stabilized hyper-twisted chiral nematic liquid crystals with interdigitated electrodes: Experiment and model

被引：20

作者：

Lorenz, A. ^{[1
]}

Gardiner, D. J. ^{[1
]}

Morris, S. M. ^{[1
,2
]}

Castles, F. ^{[1
]}

Qasim, M. M. ^{[1
]}

Choi, S. S. ^{[3
]}

Kim, W-S ^{[3
]}

Coles, H. J. ^{[1
]}

Wilkinson, T. D. ^{[1
]}

机构：

[1] Univ Cambridge, Dept Engn, Ctr Mol Mat Photon & Elect, Cambridge CB3 0FA, England

[2] Univ Oxford, Dept Engn Sci, Oxford OX1 3PJ, England

[3] LG Display, R&D Ctr, Paju Si 413811, Gyeonggi Do, South Korea

来源：

APPLIED PHYSICS LETTERS | 2014年 / 104卷 / 07期

关键词：

MORPHOLOGY;

D O I：

10.1063/1.4865558

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Electro-optic switching in short-pitch polymer stabilized chiral nematic liquid crystals was studied and the relative contributions of flexoelectric and dielectric coupling were investigated: polymer stabilization was found to effectively suppress unwanted textural transitions of the chiral nematic liquid crystal and thereby enhance the electro-optical performance (high optical contrast for visible light, a near ideal optical hysteresis, fast electro-optic response). Test cells were studied that possessed interdigitated electrodes to electrically address the liquid crystal. Based on simulations, a well-fitted phenomenological description of the electro-optic response was derived considering both flexoelectro-optic and Kerr-effect based electro-optic response. (C) 2014 AIP Publishing LLC.

引用

页数：5

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