Ms. Sora Lee Profile

Sora Lee

at Pennsylvania State Univ

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Proceedings Article | 25 August 2017 Paper

Kirigami-based three-dimensional OLED concepts for architectural lighting

Taehwan Kim, Jared Price, Alex Grede, Sora Lee, Thomas Jackson, Noel Giebink

Proceedings Volume 10362, 1036220 (2017) https://doi.org/10.1117/12.2274154

KEYWORDS: Organic light emitting diodes, OLED lighting, Light sources and illumination, Solid state lighting, Manufacturing, LED lighting, Light emitting diodes, 3D displays

Read Abstract +

Dramatic improvements in white organic light emitting diode (OLED) performance and lifetime over the past decade are driving commercialization of this technology for solid-state lighting applications. As white OLEDs attempt to gain a foothold in the market, however, the biggest challenge outside of lowering their manufacturing cost arguably now lies in creating an architecturally adaptable form factor that will drive public adoption and differentiate OLED lighting from established LED products. Here, we present concepts based on kirigami (the Japanese art of paper cutting and folding) that enable intricate three-dimensional (3D) OLED lighting structures from two dimensional layouts. Using an ultraflexible, encapsulated OLED device architecture on 25 ~ 60 μm thick clear polyimide film substrate with simple cut and fold patterns, we demonstrate a series of different lighting concepts ranging from a simple ‘pop up’ structure to more complex designs such as stretchable window blind-like panel, candle flame, and multi-element globe lamp. We only find slight degradation in OLED electrical performance when these designs are shaped into 3D. Our results point to an alternate paradigm for OLED lighting that moves beyond traditional 2D panels toward 3D designs that deliver unique and creative new opportunities for lighting.

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