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Liquid Crystals Volume 46, 2019 - Issue 5
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Article

Switchable anti-peeping film for liquid crystal displays from polymer dispersed liquid crystals

Le ZhouDepartment of Materials Science and Engineering, College of Engineering, Peking University, Beijing, People’s republic of ChinaView further author information
,
Zemin HeDepartment of Materials Science and Engineering, College of Engineering, Peking University, Beijing, People’s republic of ChinaView further author information
,
Cheng HanDepartment of Materials Physics and Chemistry, School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing, People’s republic of ChinaView further author information
,
Lanying ZhangDepartment of Materials Science and Engineering, College of Engineering, Peking University, Beijing, People’s republic of China;Key Laboratory of Polymer Chemistry and Physics of Ministry of Education, Peking University, Beijing, People’s republic of ChinaView further author information
&
Huai YangDepartment of Materials Science and Engineering, College of Engineering, Peking University, Beijing, People’s republic of China;Key Laboratory of Polymer Chemistry and Physics of Ministry of Education, Peking University, Beijing, People’s republic of ChinaCorrespondence[email protected]
View further author information
Pages 718-724 | Received 09 Aug 2018, Accepted 09 Sep 2018, Published online: 20 Sep 2018
 
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ABSTRACT

Liquid crystals displays (LCDs) currently dominate the display market, wherein a wide viewing angle is considered as one of the most important characteristics. However, for LCDs with wide viewing angles, some private information inevitably becomes more visible; thus, an LCD with a switchable viewing angle has attracted greater interest. Here, we report a novel switchable viewing angle film that can make the viewing angle of an LCD electrically switchable between ±30° and ±60°, i.e. between an anti-peeping mode and a share mode, by 5.0 V is turned on and off, respectively. The response time necessary to change between the modes is in milliseconds. It is believed that it has potential applications in LCDs with high quality.

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Disclosure statement

No potential conflict of interest was reported by the authors.

Additional information

Funding

This work was supported by the National Natural Science Foundation of China (NSFC) (Grant no. 51333001, 51573006 and 51573003), the Key International Cooperation Project (Grant no. 51720105002), and NSFC International Cooperation and Exchanges Projects (Grant no. 51561135014).

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