Simple method to obtain accurate pretilt angles for thin twisted nematic liquid-crystal cells

Sheng Yan Wang, Kei-Hsiung Yang

Research output: Contribution to journalArticle

3 Scopus citations

Abstract

Modern thin-film-transistor-driven twisted nematic (TN) products on the market require thin cell gaps below the value to satisfy the condition of the Gooch-Tarry first minimum in transmission for fast response times and wide viewing angles. For the first time to our knowledge, we have developed a simple experimental method based on a new configuration of out-of-plane cell rotation and analyzed our data by extended Jones matrix method to obtain accurate pretilt angles for such thin TN cells where the well-accepted configuration of the out-of-plane cell rotation method analyzed by Birecki and Kahn [ The Physics and Chemistry of Liquid Crystal Devices (1980), p. 115] was insufficient to address. (C) 2013 Optical Society of America
Original languageEnglish
Pages (from-to)219-225
Number of pages7
JournalApplied Optics
Volume52
Issue number2
DOIs
StatePublished - 10 Jan 2013

Keywords

  • JONES MATRIX REPRESENTATION; POLARIMETER; PARAMETERS

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