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Driving issues of large area liquid crystal devices.

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Title: Driving issues of large area liquid crystal devices.
Authors: Gao, Boxuan1 (AUTHOR) boxuan.gao@ugent.be, De Jong, Ties2 (AUTHOR), Nie, Chuan2 (AUTHOR), Osterodt, Jens2 (AUTHOR), Neyts, Kristiaan1 (AUTHOR), Beeckman, Jeroen1 (AUTHOR)
Source: Liquid Crystals. Jan2021, Vol. 48 Issue 2, p281-294. 14p.
Subjects: Liquid crystal devices, Electrochromic windows, Optical measurements, Nematic liquid crystals, Electric measurements, Smart materials, Liquid crystals
Abstract: The surface area of liquid crystal (LC) devices in different applications, such as displays, signage devices and smart windows is becoming larger and larger. The electrical driving of such devices does not pose many problems when working on centimetre sized devices. Different types of driving issues arise when up-scaling such devices to areas of several square metre, due to the fact that the thin-film transparent conductors used in these devices exhibit a finite sheet conductivity. One of the resulting issues is the non-uniformity of the electric field across the area of the device and the resulting non-uniform optical behaviour. In this work, we present a simulation model that is able to predict the optical and electrical behaviour of large-sized liquid crystal devices with different applied voltage signals, including the power consumption. The simulation results are compared with optical and electrical measurements on a liquid crystal device of 1.5 m by 1.2 m. [ABSTRACT FROM AUTHOR]
Copyright of Liquid Crystals is the property of Taylor & Francis Ltd and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
Database: Engineering Source
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DbLabel: Engineering Source
An: 148883093
AccessLevel: 6
PubType: Academic Journal
PubTypeId: academicJournal
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  Data: <searchLink fieldCode="JN" term="%22Liquid+Crystals%22">Liquid Crystals</searchLink>. Jan2021, Vol. 48 Issue 2, p281-294. 14p.
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  Data: <searchLink fieldCode="DE" term="%22Liquid+crystal+devices%22">Liquid crystal devices</searchLink><br /><searchLink fieldCode="DE" term="%22Electrochromic+windows%22">Electrochromic windows</searchLink><br /><searchLink fieldCode="DE" term="%22Optical+measurements%22">Optical measurements</searchLink><br /><searchLink fieldCode="DE" term="%22Nematic+liquid+crystals%22">Nematic liquid crystals</searchLink><br /><searchLink fieldCode="DE" term="%22Electric+measurements%22">Electric measurements</searchLink><br /><searchLink fieldCode="DE" term="%22Smart+materials%22">Smart materials</searchLink><br /><searchLink fieldCode="DE" term="%22Liquid+crystals%22">Liquid crystals</searchLink>
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  Data: The surface area of liquid crystal (LC) devices in different applications, such as displays, signage devices and smart windows is becoming larger and larger. The electrical driving of such devices does not pose many problems when working on centimetre sized devices. Different types of driving issues arise when up-scaling such devices to areas of several square metre, due to the fact that the thin-film transparent conductors used in these devices exhibit a finite sheet conductivity. One of the resulting issues is the non-uniformity of the electric field across the area of the device and the resulting non-uniform optical behaviour. In this work, we present a simulation model that is able to predict the optical and electrical behaviour of large-sized liquid crystal devices with different applied voltage signals, including the power consumption. The simulation results are compared with optical and electrical measurements on a liquid crystal device of 1.5 m by 1.2 m. [ABSTRACT FROM AUTHOR]
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  Data: <i>Copyright of Liquid Crystals is the property of Taylor & Francis Ltd and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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        Value: 10.1080/02678292.2020.1777474
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      – Code: eng
        Text: English
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        PageCount: 14
        StartPage: 281
    Subjects:
      – SubjectFull: Liquid crystal devices
        Type: general
      – SubjectFull: Electrochromic windows
        Type: general
      – SubjectFull: Optical measurements
        Type: general
      – SubjectFull: Nematic liquid crystals
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      – SubjectFull: Electric measurements
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      – SubjectFull: Smart materials
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      – SubjectFull: Liquid crystals
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      – TitleFull: Driving issues of large area liquid crystal devices.
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              M: 01
              Text: Jan2021
              Type: published
              Y: 2021
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