Influence of ion transport on liquid crystal switching

Richard James; Goran Stojmenovik; Chris Desimpel; Stefaan Vermael; F. Aníbal Fernández; Sally E. Day; Kristiaan Neyts

doi:10.1109/JDT.2006.879839

Influence of ion transport on liquid crystal switching

Richard James^*, Goran Stojmenovik, Chris Desimpel, Stefaan Vermael, F. Aníbal Fernández, Sally E. Day, Kristiaan Neyts

^*Corresponding author for this work

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

22 Citations (Scopus)

Abstract

The coupled interaction between the reorientation of a liquid crystal and the migration of ionic impurities in the presence of an applied electric field is investigated for two device types commonly used in displays, the planar and the in-plane switching (IPS) cell. Simulated optical measurements and transient currents are compared to experimental results in order to discover means to alleviate the problems associated with ion migration. IPS cells have a lower electrode surface area than planar cells, and are therefore more sensitive to the movement of a given ion concentration. As a means to reduce this sensitivity, the effect of altering the electrode width and gap is studied.

Original language	English
Article number	1677548
Pages (from-to)	237-245
Number of pages	9
Journal	IEEE/OSA Journal of Display Technology
Volume	2
Issue number	3
DOIs	https://doi.org/10.1109/JDT.2006.879839
Publication status	Published - Sept 2006
Externally published	Yes

Keywords

IPS
Ion transport
Liquid crystals (LCs)

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10.1109/JDT.2006.879839

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title = "Influence of ion transport on liquid crystal switching",

abstract = "The coupled interaction between the reorientation of a liquid crystal and the migration of ionic impurities in the presence of an applied electric field is investigated for two device types commonly used in displays, the planar and the in-plane switching (IPS) cell. Simulated optical measurements and transient currents are compared to experimental results in order to discover means to alleviate the problems associated with ion migration. IPS cells have a lower electrode surface area than planar cells, and are therefore more sensitive to the movement of a given ion concentration. As a means to reduce this sensitivity, the effect of altering the electrode width and gap is studied.",

keywords = "IPS, Ion transport, Liquid crystals (LCs)",

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AU - James, Richard

AU - Stojmenovik, Goran

AU - Desimpel, Chris

AU - Vermael, Stefaan

AU - Fernández, F. Aníbal

AU - Day, Sally E.

AU - Neyts, Kristiaan

PY - 2006/9

Y1 - 2006/9

N2 - The coupled interaction between the reorientation of a liquid crystal and the migration of ionic impurities in the presence of an applied electric field is investigated for two device types commonly used in displays, the planar and the in-plane switching (IPS) cell. Simulated optical measurements and transient currents are compared to experimental results in order to discover means to alleviate the problems associated with ion migration. IPS cells have a lower electrode surface area than planar cells, and are therefore more sensitive to the movement of a given ion concentration. As a means to reduce this sensitivity, the effect of altering the electrode width and gap is studied.

AB - The coupled interaction between the reorientation of a liquid crystal and the migration of ionic impurities in the presence of an applied electric field is investigated for two device types commonly used in displays, the planar and the in-plane switching (IPS) cell. Simulated optical measurements and transient currents are compared to experimental results in order to discover means to alleviate the problems associated with ion migration. IPS cells have a lower electrode surface area than planar cells, and are therefore more sensitive to the movement of a given ion concentration. As a means to reduce this sensitivity, the effect of altering the electrode width and gap is studied.

KW - IPS

KW - Ion transport

KW - Liquid crystals (LCs)

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DO - 10.1109/JDT.2006.879839

M3 - Journal Article

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VL - 2

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EP - 245

JO - IEEE/OSA Journal of Display Technology

JF - IEEE/OSA Journal of Display Technology

IS - 3

M1 - 1677548

ER -

Influence of ion transport on liquid crystal switching

Abstract

Keywords

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