One-dimensional surface wrinkling for twisted nematic liquid crystal display based on ultraviolet nanoimprint lithography

Surface wrinkling method is used to fabricate a 1-dimensional nanostructure. The structure is transferred to an ultraviolet cured polymer which is used as an alignment layer. The anisotropic geometry serves as a guide for aligning liquid crystal molecules uniformly without defects. The TN-LC cell sh...

Full description

Saved in:
Bibliographic Details
Published in:Optics express 2019-06, Vol.27 (13), p.18094-18101
Main Authors: Jeong, Hae-Chang, Lee, Ju Hwan, Won, Jonghoon, Oh, Byeong Yun, Kim, Dong Hyun, Lee, Dong Wook, Song, In Ho, Liu, Yang, Seo, Dae-Shik
Format: Article
Language:English
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Surface wrinkling method is used to fabricate a 1-dimensional nanostructure. The structure is transferred to an ultraviolet cured polymer which is used as an alignment layer. The anisotropic geometry serves as a guide for aligning liquid crystal molecules uniformly without defects. The TN-LC cell showed a successful LC switching, with a response time of 20.5 ms, and a threshold voltage of 2.00 V. It also exhibited high thermal stability above 180°C. The proposed UV-cured polymers with 1-D nano wrinkle geometry can be a candidate for alternative alignment techniques, for advanced liquid crystal devices with high thermal budgets.
ISSN:1094-4087
DOI:10.1364/OE.27.018094