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Proceedings Paper

Flexible GaN LED on a polyimide substrate for display applications
Author(s): Hyeon Gyun Yoo; Kwi-Il Park; Min Koo; Seungjun Kim; Sang Yong Lee; Seung Hyun Lee; Keon Jae Lee
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Paper 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.

Paper Details

Date Published: 21 January 2012
PDF: 6 pages
Proc. SPIE 8268, Quantum Sensing and Nanophotonic Devices IX, 82681Y (21 January 2012); doi: 10.1117/12.904772
Show Author Affiliations
Hyeon Gyun Yoo, KAIST (Korea, Republic of)
Kwi-Il Park, KAIST (Korea, Republic of)
Min Koo, KAIST (Korea, Republic of)
Seungjun Kim, KAIST (Korea, Republic of)
Sang Yong Lee, KAIST (Korea, Republic of)
Seung Hyun Lee, KAIST (Korea, Republic of)
Keon Jae Lee, KAIST (Korea, Republic of)


Published in SPIE Proceedings Vol. 8268:
Quantum Sensing and Nanophotonic Devices IX
Manijeh Razeghi; Eric Tournie; Gail J. Brown, Editor(s)

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