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

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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

Bibliographical note

Funding Information:
This research was supported by the MKE (The Ministry of Knowledge Economy), Korea under the ITRC (Information Technology Research Center) Support program supervised by the NIPA (National IT Industry Promotion Agency) (NIPA-2009-C1090-0902-0018)

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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