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

HaeChang Jeong | Zendy; Ju Hwan Lee | Zendy; Jonghoon Won | Zendy; ByeongYun Oh | Zendy; DongHyun Kim | Zendy; Dong Wook Lee | Zendy; In Ho Song | Zendy; Yang Liu | Zendy; DaeShik Seo | Zendy

Open Access

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

Author(s) -

HaeChang Jeong,

Ju Hwan Lee,

Jonghoon Won,

ByeongYun Oh,

DongHyun Kim,

Dong Wook Lee,

In Ho Song,

Yang Liu,

DaeShik Seo

Publication year - 2019

Publication title -

optics express

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.394

H-Index - 271

ISSN - 1094-4087

DOI - 10.1364/oe.27.018094

Subject(s) - materials science , liquid crystal , nanoimprint lithography , ultraviolet , thermal stability , polymer , optics , lithography , thermal , optoelectronics , nanostructure , liquid crystal display , structural coloration , nanotechnology , composite material , photonic crystal , fabrication , chemical engineering , medicine , alternative medicine , physics , pathology , meteorology , engineering

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.

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