Azodyes as Photoalignment Materials for Polymerizable Liquid Crystals
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概要
- 論文の詳細を見る
We demonstrate the excellent photoalignment capability of sulfuric azodyes for polymerizable liquid crystals (PLC) whose anisotropic films are extensively studied as basic elements of many passive optical devices (e.g., retardation films, polarizers, and color filters). These dyes exhibit a high affinity to various substrates and insolubility in PLC and organic solvents commonly used for their dilution. An extremely low exposure dose (less than 50 mJ) is needed to induce an excellent planar alignment of PLC. This alignment can be easily patterned using minimal numbers of masks and exposure steps. No sign of alignment deterioration is observed after photopolymerization. These imply that new photoalignment materials can be effectively used for the industrial production of optical films based on PLC. Particularly, they suit the continuous manufacturing process for such films.
- 2007-05-15
著者
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Chigrinov Vladimir
Center For Display Research Hong Kong University Of Science And Technology
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Kwok Hoi-sing
Center For Display Research And Department Of Electronic And Computer Engineering The Hong Kong Univ
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Ho Jacob
Center of Display Research, Department of Electrical and Computer Engineering, Hong Kong University of Science and Technology, Clear Water Bay, Hong Kong
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Kwok Hoi-Sing
Center of Display Research, Department of Electrical and Computer Engineering, Hong Kong University of Science and Technology, Clear Water Bay, Hong Kong
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Yaroshchuk Oleg
Center of Display Research, Department of Electrical and Computer Engineering, Hong Kong University of Science and Technology, Clear Water Bay, Hong Kong
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Chigrinov Vladimir
Center of Display Research, Department of Electrical and Computer Engineering, Hong Kong University of Science and Technology, Clear Water Bay, Hong Kong
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