Homogeneously Aligned Liquid Crystals on Activated a-Al₂O₃ Surfaces with Strong Van Der Waals Forces

Jong-Jin Lee Information Display Device Laboratory, Department of Electrical and Electronic Engineering, Yonsei University, 262 Seongsanno, Seodaemun-gu, Seoul, 120-749, Republic of Korea

Dai-Hyun Kim Information Display Device Laboratory, Department of Electrical and Electronic Engineering, Yonsei University, 262 Seongsanno, Seodaemun-gu, Seoul, 120-749, Republic of Korea

Young-Hwan Kim Information Display Device Laboratory, Department of Electrical and Electronic Engineering, Yonsei University, 262 Seongsanno, Seodaemun-gu, Seoul, 120-749, Republic of Korea

Hae-Yoon Jung Information Display Device Laboratory, Department of Electrical and Electronic Engineering, Yonsei University, 262 Seongsanno, Seodaemun-gu, Seoul, 120-749, Republic of Korea

Hong-Gyu Park Information Display Device Laboratory, Department of Electrical and Electronic Engineering, Yonsei University, 262 Seongsanno, Seodaemun-gu, Seoul, 120-749, Republic of Korea

Jin-Woo Lee Components & Materials Evaluation Team, Korea Evaluation Institute of Industrial Technology, 305, Teheran-Ro, Gangnam-Gu, Seoul, 135-080, Republic of Korea

Dae-Shik Seo Information Display Device Laboratory, Department of Electrical and Electronic Engineering, Yonsei University, 262 Seongsanno, Seodaemun-gu, Seoul, 120-749, Republic of Korea

show all

Abstract

This report discusses homogeneously aligned liquid crystals (LCs) subjected to ion-beam (IB) irradiation of the amorphous(a)-Al₂O₃ alignment layer. We studied the relationship between LC alignment and IB alignment conditions acting on homogeneous surfaces. We attained homogeneous LC orientations on a- Al₂O₃ alignment layer by optimization between the van der Waals interactions caused by Al-O bonding breaking with x-ray photoelectron spectroscopy. The voltage-transmittance characteristics of the twisted nematic – liquid crystal displays (LCDs) on the a-Al₂O₃ film indicate potential for use as the LC alignment layer in various LCD display applications.

Keywords:

Acknowledgments

This research was supported by 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-2011-C1090-1111-0002).

Reprints and Corporate Permissions

Please note: Selecting permissions does not provide access to the full text of the article, please see our help page How do I view content?

To request a reprint or corporate permissions for this article, please click on the relevant link below:

Order Reprints Request Corporate Permissions

Academic Permissions

Please note: Selecting permissions does not provide access to the full text of the article, please see our help page How do I view content?

Obtain permissions instantly via Rightslink by clicking on the button below:

Request Academic Permissions

If you are unable to obtain permissions via Rightslink, please complete and submit this Permissions form. For more information, please visit our Permissions help page.

Homogeneously Aligned Liquid Crystals on Activated a-Al₂O₃ Surfaces with Strong Van Der Waals Forces

Information for

Open access

Opportunities

Help and information

Homogeneously Aligned Liquid Crystals on Activated a-Al2O3 Surfaces with Strong Van Der Waals Forces

Abstract

Acknowledgments

Reprints and Corporate Permissions

Academic Permissions

Related research

To cite this article:

Download citation

Information for

Open access

Opportunities

Help and information

Keep up to date

Your download is now in progress and you may close this window

Login or register to access this feature

Homogeneously Aligned Liquid Crystals on Activated a-Al₂O₃ Surfaces with Strong Van Der Waals Forces