title: In-Plane Switching Mode for Liquid Crystal Displays Using a DNA Alignment Layer.
abstract: We successfully fabricated the in-plane switching mode (IPS) LC display (LCD) based on a double stranded DNA (dsDNA) alignment layer. As widely known, the DNA has the right-handed double helical structure that has naturally grown grooves with a very regular period, which can be used as an alignment layer to control the orientation of liquid crystal (LC) molecules. The LC molecules on this topographical layer of DNA material align obliquely at a specific angle with respect to the direction of DNA chains, providing an instant and convenient tool for the fabrication of the IPS display compared to the conventional ways such as rubbing and mechanical shearing methods. The electro-optical performance and response time of this device were also investigated. Our result will be of great use in further exploration of the electro-optical properties of the other biomaterials.
authors.affiliation: †Graduate School of Nanoscience and Technology and KINC, KAIST, 291 Daehak-ro, Daejeon 305-701, Republic of Korea.
authors.forename: Yun Jeong
authors.initials: YJ
authors.lastname: Cha
authors.affiliation: †Graduate School of Nanoscience and Technology and KINC, KAIST, 291 Daehak-ro, Daejeon 305-701, Republic of Korea.
authors.forename: Min-Jun
authors.initials: MJ
authors.lastname: Gim
authors.affiliation: ‡Photonic Device Physics Laboratory, Institute of Physics and Applied Physics, Yonsei University, Seoul 120-749, Republic of Korea.
authors.forename: Kyunghwan
authors.initials: K
authors.lastname: Oh
authors.affiliation: †Graduate School of Nanoscience and Technology and KINC, KAIST, 291 Daehak-ro, Daejeon 305-701, Republic of Korea.
authors.forename: Dong Ki
authors.initials: DK
authors.lastname: Yoon
mesh_terms: D000165:Acridine Orange / Q000737:chemistry; D001672:Biocompatible Materials / Q000737:chemistry*; D004247:DNA / Q000737:chemistry*; D005456:Fluorescent Dyes / Q000737:chemistry; D050866:Liquid Crystals / Q000737:chemistry*; D036103:Nanotechnology
chemical_list: D001672:Biocompatible Materials; D005456:Fluorescent Dyes; D004247:DNA; D000165:Acridine Orange
keywords: DNA; IPS LCD; alignment layer; biomaterial; liquid crystal