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Surface polymer-stabilised in-plane field driven vertical alignment liquid crystal device

Journal article
Authors S. W. Kang
Y. E. Choi
B. H. Lee
J. H. Lee
S. Kundu
H. S. Jin
Y. K. Yun
S. H. Lee
Lachezar Komitov
Published in Liquid Crystals
Volume 41
Issue 4
Pages 552-557
ISSN 0267-8292
Publication year 2014
Published at Department of Physics (GU)
Pages 552-557
Language en
Keywords vertical alignment, in-plane field, polymer stabilisation, positive dielectric anisotropy, ELECTROOPTIC CHARACTERISTICS, LIGHT EFFICIENCY, SWITCHING MODE, DISPLAY
Subject categories Physical Sciences


In-plane field driven vertical alignment device using a liquid crystal with positive dielectric anisotropy has been studied. In the device, the distance between inter-digital electrodes needs to be increased to achieve higher transmittance; however, such a design results in an increase in operating voltage and slower response time. In this work, we use polymer stabilisation technique, which generates surface tilt angle other than 90(o), to improve upon these drawbacks. As a result, the proposed device shows lower operating voltage and faster response time while keeping transmittance at the same level, compared to those prior to polymer stabilisation.

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