Flexible GaN LED on a polyimide substrate for display applications

Hyeon Gyun Yoo; Kwi-Il Park; Min Koo; Seungjun Kim; Sang Yong Lee; Seung Hyun Lee; Keon Jae Lee

doi:10.1117/12.904772

20 January 2012 Flexible GaN LED on a polyimide substrate for display applications

Hyeon Gyun Yoo, Kwi-Il Park, Min Koo, Seungjun Kim, Sang Yong Lee, Seung Hyun Lee, Keon Jae Lee

Proceedings Volume 8268, Quantum Sensing and Nanophotonic Devices IX; 82681Y (2012) https://doi.org/10.1117/12.904772
Event: SPIE OPTO, 2012, San Francisco, California, United States

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.

Citation Download Citation

Hyeon Gyun Yoo, Kwi-Il Park, Min Koo, Seungjun Kim, Sang Yong Lee, Seung Hyun Lee, and 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); https://doi.org/10.1117/12.904772

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