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

Hae Chang Jeong, Ju Hwan Lee, Jonghoon Won, Byeong Yun Oh, Dong Hyun Kim, Dong Wook Lee, In Ho Song, Yang Liu, Dae Shik Seo

Research output: Contribution to journalArticlepeer-review

6 Citations (Scopus)

Abstract

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.

Original languageEnglish
Pages (from-to)18094-18101
Number of pages8
JournalOptics Express
Volume27
Issue number13
DOIs
Publication statusPublished - 2019

Bibliographical note

Funding Information:
National Research Foundation of Korea (Grant No. 2019-11-0042).

Publisher Copyright:
© 2019 Optical Society of America under the terms of the OSA Open Access Publishing Agreement

All Science Journal Classification (ASJC) codes

  • Atomic and Molecular Physics, and Optics

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