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Dielectric breakdown of fast switching LCD shutters

  • EuroLCDs
  • Riga Technical University
  • University of Latvia

Research output: Chapter in Book/Report/Conference proceedingConference paperResearchpeer-review

2 Citations (Scopus)

Abstract

Fast liquid crystal optical shutters due to fast switching, vibrationless control and optical properties have found various applications: substitutes for mechanical shutters, 3D active shutter glasses, 3D volumetric displays and more. Switching speed depends not only on properties of liquid crystal, but also on applied electric field intensity. Applied field in the shutters can exceed >10 V/micron which may lead to dielectric breakdown. Therefore, a dielectric thin film is needed between transparent conductive electrodes in order to reduce breakdown probability. In this work we have compared electrical and optical properties of liquid crystal displays with dielectric thin films with thicknesses up to few hundred nanometers coated by flexo printing method and magnetron sputtering. Dielectric breakdown values show flexographic thin films to have higher resistance to dielectric breakdown, although sputtered coatings have better optical properties, such as higher transmission and no coloration.

Original languageEnglish
Title of host publicationAdvances in Display Technologies VII
EditorsTae-Hoon Yoon, Sin-Doo Lee, Liang-Chy Chien
PublisherSPIE
ISBN (Electronic)9781510606937
DOIs
Publication statusPublished - 2017
EventConference on Advances in Display Technologies VII, ADT 2017 - San Francisco, United States
Duration: 1 Feb 20172 Feb 2017

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume10126
ISSN (Print)0277-786X
ISSN (Electronic)1996-756X

Conference

ConferenceConference on Advances in Display Technologies VII, ADT 2017
Country/TerritoryUnited States
CitySan Francisco
Period1/02/172/02/17

Keywords

  • dielectric breakdown
  • fast switching
  • high voltage
  • LCD
  • shutters
  • silicon dioxide
  • Thin films

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