Photoreactive Spacer Prepared Using Electrohydrodynamic Printing for Application in a Liquid Crystal Device

Electrohydrodynamic (EHD)-printed photoreactive spacers were applied to liquid crystal displays (LCDs) as a substitute for conventional silica bead or column spacers. We produced uniform SU-8 spacers using the jet mode of EHD printing. SU-8 was demonstrated to be a suitable substitute material with...

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Bibliographic Details
Published in:ECS solid state letters 2013-01, Vol.2 (12), p.R52-R54
Main Authors: Park, Hong-Gyu, Byun, Sang-Un, Jeong, Hae-Chang, Lee, Jin-Woo, Seo, Dae-Shik
Format: Article
Language:English
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Summary:Electrohydrodynamic (EHD)-printed photoreactive spacers were applied to liquid crystal displays (LCDs) as a substitute for conventional silica bead or column spacers. We produced uniform SU-8 spacers using the jet mode of EHD printing. SU-8 was demonstrated to be a suitable substitute material with a high transparency and thermal resistance. The LC cell with the EHD-printed SU-8 spacer had a homogeneous LC orientation and a regular pretilt angle of 2.41°. A twisted nematic (TN) LC cell with the EHD-printed SU-8 spacers was fabricated and compared to conventional TN cells based on silica bead or column spacers.
ISSN:2162-8742
2162-8750
DOI:10.1149/2.010312ssl