Controlling liquid crystal pretilt angle with photocurable prepolymer and vertically aligned substrate

Che Ju Hsu, Bao Long Chen, Chi-Yen Huang

研究成果: Article

14 引文 斯高帕斯(Scopus)

摘要

We demonstrate a new approach to control the pretilt angle of liquid crystals (LCs) with photocurable prepolymer in a cell fabricated with vertically aligned substrates. During UV exposure, prepolymer approaches and is polymerized on the substrate surfaces because of the vertical phase separation induced by differences in the surface tensions of the employed materials. After polymerization, the polymer structure formed on the substrate alters its surface polarity and changes the pretilt angle of the LC cell. The LC pretilt angle can be controlled from 87.3° to 2.5° when the prepolymer concentration ranges from 0 wt% to 2.5 wt%.

原文English
頁(從 - 到)1463-1471
頁數9
期刊Optics Express
24
發行號2
DOIs
出版狀態Published - 2016 一月 25

All Science Journal Classification (ASJC) codes

  • Atomic and Molecular Physics, and Optics

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