20 January 2012 Flexible GaN LED on a polyimide substrate for display applications
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Abstract
The flexible GaN-based light emitting diode (LED) has been fabricated on a plastic substrate for flexible display applications. The epitaxial structures of the GaN LED arrays are transferred onto a flexible substrate using standard soft lithography technology and connected to a source-meter by metal lines. To verify the mechanically and optically stable characteristics of the GaN LEDs on the flexible substrates, the electrical properties are characterized during 2000 bending cycles at various bending radius. A white light-emitting phosphor-coated GaN LED shows its potential as a next-generation flexible light source.
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Hyeon Gyun Yoo, Hyeon Gyun Yoo, Kwi-Il Park, Kwi-Il Park, Min Koo, Min Koo, Seungjun Kim, Seungjun Kim, Sang Yong Lee, Sang Yong Lee, Seung Hyun Lee, Seung Hyun Lee, Keon Jae Lee, Keon Jae Lee, } "Flexible GaN LED on a polyimide substrate for display applications", Proc. SPIE 8268, Quantum Sensing and Nanophotonic Devices IX, 82681Y (20 January 2012); doi: 10.1117/12.904772; https://doi.org/10.1117/12.904772
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