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Effect of out-of-plane retardation of substrate film on the viewing-angle dependence of transmittance in a display device

  • Sumin Ahn
  • , Ji Hoon Lee*
  • *Corresponding author for this work
  • Jeonbuk National University

Research output: Contribution to journalJournal articlepeer-review

Abstract

The effect of the out-of-plane retardation (Rth) of a substrate film on the viewing-angle dependence of transmittance (TR) in a display device was investigated. When the polarization state of input light deviates from the transmission axis of the polarizer, Rth of the substrate film induces inhomogeneous viewing-angle dependence of TR. The inhomogeneity of TR gets worse for greater values of of Rth. The inhomogeneous TR profile can be eliminated by inserting compensation films, which convert the input polarization state to the linear polarization state parallel to the transmission axis of the polarizer.

Original languageEnglish
Pages (from-to)45-51
Number of pages7
JournalCurrent Optics and Photonics
Volume5
Issue number1
DOIs
StatePublished - 2021

Keywords

  • Liquid crystal display
  • Out-of-plane retardation
  • Substrate film
  • Viewing angle

Quacquarelli Symonds(QS) Subject Topics

  • Physics & Astronomy

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