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14 February 2011 Microscale, printed LEDs for unusual lighting and display systems
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Current technology development in light emitting diodes has enabled high efficiency operation, low energy consumption and lifetimes, thereby creating new possibilities in conventional display and lighting industry. Recent work is also creating more unusual uses in biomedicine and in sensing applications, where conformal contact over curvilinear surfaces is required. Here, ultrathin device geometries and optimized mechanical designs, including neutral mechanical plane layouts and serpentine interconnects, provide indicators and lighting modules with arbitrary shapes capable of integrated on nearly any type of substrates. Biomedical devices such as light emitting suture threads, and glove-mounted optical proximity sensors demonstrate the versatility of this strategy and create great new opportunities.
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Rak-Hwan Kim, Dae-Hyeong Kim, Jianliang Xiao, Bong Hoon Kim, Bruce Panilaitis, Roozbeh Ghaffari, Jimin Yao, Ming Li, Zhuangjian Liu, Viktor Malyarchuk, Dae Gon Kim, An-Phong Le, Ralph G. Nuzzo, David L. Kaplan, Fiorenzo G. Omenetto, Yonggang Huang, Zhan Kang, and John A. Rogers "Microscale, printed LEDs for unusual lighting and display systems", Proc. SPIE 7927, Advanced Fabrication Technologies for Micro/Nano Optics and Photonics IV, 79270T (14 February 2011);


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