Progress in wearable OLEDs: from stretchable OLEDs to health-monitoring applications (Conference Presentation)

Seunghyup Yoo; Taehyun Kim; Seunghee Lee

doi:10.1117/12.2637421

3 October 2022 Progress in wearable OLEDs: from stretchable OLEDs to health-monitoring applications (Conference Presentation)

Seunghyup Yoo, Taehyun Kim, Seunghee Lee

Author Affiliations +

Proceedings Volume PC12208, Organic and Hybrid Light Emitting Materials and Devices XXVI; PC122080E (2022) https://doi.org/10.1117/12.2637421
Event: SPIE Organic Photonics + Electronics, 2022, San Diego, California, United States

Abstract

Organic light-emitting diodes (OLEDs) are unique light sources with a promising potential even beyond display and lighting applications. The low-temperature processability of organic materials allows the fabrication of organic devices on plastic substrates, enabling deformable optoelectronic devices. In this talk, we present our group's progress on these deformable OLEDs. First of all, we report on a device architecture leading to fully encapsulated stretchable OLEDs with high performance. A straightforward yet highly effective fabrication method is provided based on laser-patterned substrates and stress-relieving layers. Secondly, we report on a revised architecture for OLED-based health-monitoring sensors that can measure blood oxygen level and heart rate. Finally, we introduce key engineering made for ultralow power consumption in these sensors.

Conference Presentation

Citation Download Citation

Seunghyup Yoo, Taehyun Kim, and Seunghee Lee "Progress in wearable OLEDs: from stretchable OLEDs to health-monitoring applications (Conference Presentation)", Proc. SPIE PC12208, Organic and Hybrid Light Emitting Materials and Devices XXVI, PC122080E (3 October 2022); https://doi.org/10.1117/12.2637421

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KEYWORDS

Organic light emitting diodes

Optoelectronic devices

Sensors

Blood oxygen saturation

Heart

Light sources

Light sources and illumination

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