期刊
JOURNAL OF MOLECULAR LIQUIDS
卷 367, 期 -, 页码 -出版社
ELSEVIER
DOI: 10.1016/j.molliq.2022.120535
关键词
Liquid crystals; Vertical alignment; Flexible display; Low-temperature alignment
资金
- State Key Laboratory of Advanced Displays and Optoelectronics through the Innovations and Technology Commission of Hong Kong and Hong Kong Gov. Innovations and Technology Commission of Hong Kong [PRP/049/19FX]
This study presents a vertical alignment material using alkylphosphonic acid that provides good vertical alignment for liquid crystals with simple room temperature treatments. The proposed material shows decent electro-optical properties and great compatibility with flexible substrates.
In this article, we disclose a vertical alignment material using alkylphosphonic acid for liquid crystals that only requires simple room temperature treatments to secure good vertical alignment for liquid crystals. Alkylphosphonic acid forms a monomolecular layer on the substrate providing strong vertical alignment. The proposed alignment layer shows decent electro-optical properties, such as high voltage holding ratio, low residual direct current voltage, low image sticking parameter, etc. Later, we combine the alkylphos-phonic acid with photo-rewritable azo-dye to fabricate a hybrid alignment of nematic cells and study its stability and anchoring energy. The material shows great compatibility with flexible substrates. Thus, the proposed alignment layer of alkylphosphonic acid can potentially find application as the alignment layer for flexible liquid crystal displays.(c) 2022 Elsevier B.V. All rights reserved.
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