Generation of pretilt angle and an alignment layer utilizing binary mixture in pl-less vertical alignment mode

  • Gwan Yong Lee
  • , Jun Hyeok Lee
  • , Seong Min Song
  • , Ramesh Manda
  • , Young Jin Lim
  • , Seung Hee Lee*
  • *Corresponding author for this work

Research output: Contribution to journalConference articlepeer-review

Abstract

We demonstrate new approach of polyimide (Pl)-less polymer stabilized vertical alignment (PS-VA) mode in which binary mixture of single kind of reactive mesogen and LC induces a VA with temperature treatment. The induced VA is fixed at first UV exposure and then a pretilt angle is generated with second UV exposure. The proposed device with two-step UV exposure exhibits excellent electro-optics such as fast response time and enhanced on-state transmittance. This approach fixes a vertical alignment physically unlike chemical bonding in conventional PI-less VA mode, giving rise to high reliability.

Original languageEnglish
Pages (from-to)1982-1985
Number of pages4
JournalDigest of Technical Papers - SID International Symposium
Volume51
Issue number1
DOIs
StatePublished - 2020
Event57th SID International Symposium, Seminar and Exhibition, Display Week, 2020 - Virtual, Online
Duration: 2020.08.32020.08.7

Keywords

  • Polyimide-less
  • Ps-va
  • Reactive mesogen
  • Vertical alignment

Quacquarelli Symonds(QS) Subject Topics

  • Engineering & Technology

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