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Molecular Crystals and Liquid Crystals Volume 550, 2011 - Issue 1: Proceedings of the 14th International Symposium on Advanced Display Materials and Devices (ADMD2010): Part I of II
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LCD Articles

Alignment Characteristics of Liquid Crystal Molecules on Titanium Dioxide Thin Film

Hyun-Jae Na Information Display Device Laboratory, Department of Electrical, Electronic Engineering Yonsei University, 262 Seongsanno, Seodaemun-gu, Seoul, 120-749, Republic of Korea
,
Hee-Jun Lee Information Display Device Laboratory, Department of Electrical, Electronic Engineering Yonsei University, 262 Seongsanno, Seodaemun-gu, Seoul, 120-749, Republic of Korea
,
Iee-Gon Kim Information Display Device Laboratory, Department of Electrical, Electronic Engineering Yonsei University, 262 Seongsanno, Seodaemun-gu, Seoul, 120-749, Republic of Korea
,
Hong-Gyu Park Information Display Device Laboratory, Department of Electrical, Electronic Engineering Yonsei University, 262 Seongsanno, Seodaemun-gu, Seoul, 120-749, Republic of Korea
,
Young-Hwan Kim Information Display Device Laboratory, Department of Electrical, Electronic Engineering Yonsei University, 262 Seongsanno, Seodaemun-gu, Seoul, 120-749, Republic of Korea
,
Byoung-Yong Kim Information Display Device Laboratory, Department of Electrical, Electronic Engineering Yonsei University, 262 Seongsanno, Seodaemun-gu, Seoul, 120-749, Republic of Korea
,
Jeong-Yeon Hwang Information Display Device Laboratory, Department of Electrical, Electronic Engineering Yonsei University, 262 Seongsanno, Seodaemun-gu, Seoul, 120-749, Republic of Korea
,
Jeong-Min Han Department of Electronic, Seoil University, Seoildaehak-gil 22, Jungnang-gu, Seoul, 131-702, Republic of Korea
,
Tae-Kyu Park LG Components R&D Center, 1271, Sa3-dong, Sangrok-gu, Ansan-si, Gyeonggi-do, 426-791, Korea
&
Dae-Shik Seo Information Display Device Laboratory, Department of Electrical, Electronic Engineering Yonsei University, 262 Seongsanno, Seodaemun-gu, Seoul, 120-749, Republic of Korea
 show all
Pages 45-50 | Published online: 18 Oct 2011
 
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Abstract

We present the characteristics of titanium dioxide (TiO2) inorganic film deposited by RF magnetron sputtering for liquid crystal display applications in this paper. TiO2 films supported vertically aligned liquid crystal (LC) molecules based on ion-beam (IB) irradiation time dependence. Uniform alignment was obtained only when the incident time was two minutes with 1.8 keV of incident energy and an incident angle of 45°. Energy from uniform high-density plasma by IB irradiation affected the interaction between the TiO2 layer and LC molecules to produce vertical alignment of the LC molecules.

Acknowledgment

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).

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