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Liquid Crystals Volume 47, 2020 - Issue 10
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Article

Ferroelectric liquid crystal devices on strengthened photoalignment films

Ying Maa MOE Key Laboratory of Material Physics and Chemistry under Extraordinary Conditions, and Shaanxi Key Laboratory of Optical Information Technology, School of Physical Science and Technology, Northwestern Polytechnical University, Xi’an, ChinaCorrespondence[email protected]
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,
Xiaoyu Liua MOE Key Laboratory of Material Physics and Chemistry under Extraordinary Conditions, and Shaanxi Key Laboratory of Optical Information Technology, School of Physical Science and Technology, Northwestern Polytechnical University, Xi’an, ChinaView further author information
,
Jiatong Sunb College of Information Science and Technology, Donghua University, Shanghai, ChinaCorrespondence[email protected]
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,
Man-Chun Tsengc State Key Laboratory (SKL) on Advanced Displays and Optoelectronics Technologies, Department of Electronic and Computer Engineering, Hong Kong University of Science and Technology, Kowloon, Hong KongView further author information
&
Hoi-Sing Kwokc State Key Laboratory (SKL) on Advanced Displays and Optoelectronics Technologies, Department of Electronic and Computer Engineering, Hong Kong University of Science and Technology, Kowloon, Hong KongView further author information
Pages 1452-1457 | Received 27 Nov 2019, Accepted 22 Feb 2020, Published online: 23 Mar 2020
 
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ABSTRACT

Stable ferroelectric liquid crystal (FLC) elements have been realised by optically stabilised alignment film and thermally stabilised alignment film. The two methods of fabricated FLC elements have been explored for different aspects, namely alignment quality, electro-optical response and their possibility for complicate aligning patterns such as grating and Pancharatnam–Berry lens. They are compared based on different requirements of applications. With these two approaches, we are able to produce various types of FLC photonic and display devices with good photostability.

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Disclosure statement

No potential conflict of interest was reported by the authors.

Additional information

Funding

This study was funded by National Key R&D Program of China (2017YFA0303800); Natural National Science Foundation of China (NSFC) (6180030581,  61805202); Fundamental Research Funds for the Central Universities (2232017D-10, G2018KY0309); Natural Science Foundation of Shaanxi Province (2019JQ-615); Shanghai Sailing Program (18YF1400900), and fundamental research funds for young professors at Donghua University (104-07-0053027).

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