Design and Fabrication of Micro Optical Film by Ultraviolet Roll Imprinting
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概要
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With increasing demand for large-scale functional optical films with microstructure in the field of flat panel displays, a technology capable of fabricating large-scale polymeric micro-patterns has received much attention. To fabricate large-area micro-optical films, we designed and constructed an ultraviolet roll imprinting system consisting of a roll stamp, a material dispensing unit, a pair of flattening rollers, a contact roller, and a releasing roller. Two methods for fabricating roll stamps were considered: direct machining of the roll base and wrapping a flat stamp around the roll base. As practical examples of the roll imprinting process, we designed and fabricated a lenticular lens array, a pyramidal pattern, and a microlens array, and measured and analyzed their geometrical and optical properties. Our results suggest that the proposed UV roll imprinting process is a feasible method for mass producing large-scale functional optical films.
- 2007-08-30
著者
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Kang Shinill
Nanoreplication and Microoptics National Research Laboratory, Yonsei University, Seoul 120-749, Korea
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Ahn Suho
Nanoreplication and Microoptics National Research Laboratory, Yonsei University, Seoul 120-749, Korea
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Choi Minseok
Nanoreplication and Microoptics National Research Laboratory, Yonsei University, Seoul 120-749, Korea
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Kim Hongmin
Nanoreplication and Microoptics National Research Laboratory, Yonsei University, Seoul 120-749, Korea
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Bae Hyungdae
Nanoreplication and Microoptics National Research Laboratory, Yonsei University, Seoul 120-749, Korea
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Lim Jiseok
Nanoreplication and Microoptics National Research Laboratory, Yonsei University, Seoul 120-749, Korea
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Myung Ho
Nanoreplication and Microoptics National Research Laboratory, Yonsei University, Seoul 120-749, Korea