High pretilt angle effects on electro-optical property of ion-beam irradiated liquid crystal cells on a blended polyimide surface

Dai Hyun Kim, Hong Gyu Park, Chul Ho Ok, Young Hwan Kim, Byoung Yong Kim, Jeong Yeon Hwang, Dae Shik Seo

Research output: Contribution to journalConference article

1 Citation (Scopus)

Abstract

We investigated the high pretilt angle effects on electro-optical properties of ion beam (IB)-irradiated liquid crystal cells on a blended polyimide surface. High pretilt angle of liquid crystals IB-irradiated on a blended polyimide surface including such as 5% and 10% of homeotropic polymer contents can be achieved. The threshold voltages of IB-irradiated twisted nematic (TN) cells on a blended polyimide surface decrease with increasing the pretilt angle. Also, the rising time of IB-irradiated TN cells decreases with increasing the pretilt angle. However the decay time of IB-irradiated TN cells increases with increasing the pretilt angle. Consequently, the electro-optical properties of IB-irradiated TN cells depend strongly on the pretilt angle in a blended polyimide surface.

Original languageEnglish
Pages (from-to)8-15
Number of pages8
JournalFerroelectrics
Volume394
Issue number1
DOIs
Publication statusPublished - 2010
Event12th International Conference on Ferroelectric Liquid Crystals, FLC-09 - Zaragoza, Spain
Duration: 2009 Aug 312009 Sep 4

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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