A hysteresis-free polymer-stabilised blue-phase liquid crystal

Yifan LiuCREOL, The College of Optics and Photonics, University of Central Florida, Orlando, FL, USA

Su XuCREOL, The College of Optics and Photonics, University of Central Florida, Orlando, FL, USA

Daming XuCREOL, The College of Optics and Photonics, University of Central Florida, Orlando, FL, USA

Jing YanCREOL, The College of Optics and Photonics, University of Central Florida, Orlando, FL, USA;Display Center, School of Electronic Science and Engineering, Southeast University, Nanjing, P. R. China

Yating GaoCREOL, The College of Optics and Photonics, University of Central Florida, Orlando, FL, USA

Shin-Tson WuCREOL, The College of Optics and Photonics, University of Central Florida, Orlando, FL, USACorrespondence[email protected]

Abstract

We report a polymer-stabilised blue-phase liquid crystal (BPLC) in an in-plane-switching (IPS) cell with negligible hysteresis and good stability. Long ultraviolet (UV) wavelength and top-side (no IPS electrode) exposure create uniform polymer network, which in turn helps to suppress hysteresis. The effect of photoinitiator is also investigated. Although a BPLC precursor without photoinitiator requires a higher UV dosage to stabilise the polymer network, it is favourable for keeping high resistivity and reducing image sticking.

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Acknowledegments

The authors are indebted to Jie Sun and Fenglin Peng for useful discussion.

Funding

The authors are grateful to AU Optronics (Taiwan) for financial support.

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A hysteresis-free polymer-stabilised blue-phase liquid crystal

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A hysteresis-free polymer-stabilised blue-phase liquid crystal

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