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Liquid Crystals Volume 49, 2022 - Issue 1
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Article

Viewing-angle-switching film based on polymer dispersed liquid crystals for smart anti-peeping liquid crystal display

Zemin Hea Key Laboratory of Organic Polymer Photoelectric Materials, School of Sciences, Xi’an Key Laboratory of Advanced Photo-electronics Materials and Energy Conversion Device, Xijing University, Xi’an, China
,
Wenbo Shenb Shenzhen Key Laboratory of Polymer Science and Technology, Guangdong Research Center for Interfacial Engineering of Functional Materials, College of Materials Science and Engineering, Shenzhen University, Shenzhen, ChinaCorrespondence[email protected]
ORCID Iconhttps://orcid.org/0000-0002-0898-9963
ORCID Icon,
Ping Yuc State Key Laboratory of Metastable Materials Science and Technology, Yanshan University, Qinhuangdao, P.R. China
,
Yuzhen Zhaoa Key Laboratory of Organic Polymer Photoelectric Materials, School of Sciences, Xi’an Key Laboratory of Advanced Photo-electronics Materials and Energy Conversion Device, Xijing University, Xi’an, China
,
Zhuang Zengc State Key Laboratory of Metastable Materials Science and Technology, Yanshan University, Qinhuangdao, P.R. China
,
Zeng Liangd Department of Materials Physics and Chemistry, School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing, People’s Republic of ChinaORCID Iconhttps://orcid.org/0000-0003-4656-4541
ORCID Icon,
Zhuo Chena Key Laboratory of Organic Polymer Photoelectric Materials, School of Sciences, Xi’an Key Laboratory of Advanced Photo-electronics Materials and Energy Conversion Device, Xijing University, Xi’an, China
,
Huimin Zhanga Key Laboratory of Organic Polymer Photoelectric Materials, School of Sciences, Xi’an Key Laboratory of Advanced Photo-electronics Materials and Energy Conversion Device, Xijing University, Xi’an, China
,
Haiquan Zhangc State Key Laboratory of Metastable Materials Science and Technology, Yanshan University, Qinhuangdao, P.R. China
,
Zongcheng Miaoa Key Laboratory of Organic Polymer Photoelectric Materials, School of Sciences, Xi’an Key Laboratory of Advanced Photo-electronics Materials and Energy Conversion Device, Xijing University, Xi’an, China
&
Dong Wangd Department of Materials Physics and Chemistry, School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing, People’s Republic of ChinaCorrespondence[email protected]
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Pages 59-65 | Received 11 Mar 2021, Accepted 13 Jun 2021, Published online: 20 Jul 2021
 
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ABSTRACT

In this paper, the viewing-angle-switching (VAS) films based on polymer dispersed liquid crystals (PDLCs) were fabricated and the optical properties of the VAS films were studied. The VAS films based on PDLC films can exhibit electrically switchable viewing-angle properties, and the films showed a narrow viewing angle under no electric field and presented a wide viewing angle under electric field (24 V). Furthermore, the smart anti-peeping liquid crystal display (LCD) containing the VAS film based on PDLC film also displayed the electrically switchable viewing-angle performance and the corresponding mechanism was discussed. The results demonstrated both the anti-peeping effect and electrically switchable view-angle effect of the as-fabricated VAS film, promising potential applications in intelligent optical films and novel information displays.

GRAPHICAL ABSTRACT

Acknowledgments

This work was supported by the Natural Science Basic Research Plan in Shaanxi Province of China (NO.2021JQ-877, NO.2021GY-205, NO.2021JM-536, NO.2021JM-531, NO.2021JM-534), the Scientific Research Program Funded by Shaanxi Provincial Education Department (No.20JK0959) and the Special Fund for Talent Research of Xijing University (NO.XJ20B10, NO.XJ20B02).

Disclosure statement

No potential conflict of interest was reported by the author(s).

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