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Liquid Crystals Volume 47, 2020 - Issue 14-15
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Article

Chiral polymer network stabilised blue phase liquid crystals

Yifan Fenga National Engineering Lab for TFT-LCD Materials and Technologies, Department of Electronic Engineering, Shanghai Jiao Tong University, Shanghai, ChinaView further author information
,
Zhikang Zhua National Engineering Lab for TFT-LCD Materials and Technologies, Department of Electronic Engineering, Shanghai Jiao Tong University, Shanghai, ChinaView further author information
,
Hongzhou Zhanga National Engineering Lab for TFT-LCD Materials and Technologies, Department of Electronic Engineering, Shanghai Jiao Tong University, Shanghai, ChinaView further author information
,
Kai Huanga National Engineering Lab for TFT-LCD Materials and Technologies, Department of Electronic Engineering, Shanghai Jiao Tong University, Shanghai, ChinaView further author information
,
Tengfei Huanga National Engineering Lab for TFT-LCD Materials and Technologies, Department of Electronic Engineering, Shanghai Jiao Tong University, Shanghai, ChinaView further author information
,
Wen-Ming Hanb Jiangsu Hecheng Display Technology Co., Ltd, Nanjing, ChinaView further author information
,
Dong-Qing Wuc School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, Shanghai, ChinaView further author information
&
Jiangang Lua National Engineering Lab for TFT-LCD Materials and Technologies, Department of Electronic Engineering, Shanghai Jiao Tong University, Shanghai, ChinaCorrespondence[email protected]
View further author information
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Pages 2184-2193 | Received 04 Sep 2019, Accepted 24 Feb 2020, Published online: 29 Jul 2020
 
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ABSTRACT

The effect of chiral polymer network in polymer-stabilised blue phase liquid crystals (PS-BPLCs) is investigated. Compared with the conventional polymer network, the chiral polymer network can induce and stabilise the blue phase with less proportion of chiral dopant and monomer. Benefiting from twisting power and good compatibility of the chiral monomer, the driving capability of chiral PS-BPLC can be much improved by 65% compared with that of conventional PS-BPLCs. The hysteresis and residual birefringence issues also can be improved by introducing a chiral monomer with high stiffness and small molecule weight.

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Disclosure statement

No potential conflict of interest was reported by the authors.

Additional information

Funding

This work was supported in part by the (National Natural Science Foundation of China) under Grant [61727808 and Grant 61775135].

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