Thin-Film Electrostatic Discharge Protection for Highly Segmented OLEDs in Automotive Applications

Bechert H, Almora O, Regau K, Matt G, Brabec C, Wehlus T (2019)


Publication Language: English

Publication Status: Published

Publication Type: Journal article, Original article

Publication year: 2019

Journal

Publisher: Wiley-Blackwell

Book Volume: 4

Pages Range: 1800696

Article Number: 1800696

Journal Issue: 5

URI: https://onlinelibrary.wiley.com/doi/full/10.1002/admt.201800696

DOI: 10.1002/admt.201800696

Abstract

Future autonomous driving requires new lighting solutions. Communication in between other cars and pedestrians, which fulfills the requirements of the automotive lighting industry, is needed. A very promising lighting solution for this application are highly segmented organic light-emitting diodes (OLEDs). Unfortunately, small area OLEDs are very sensitive to electrostatic discharge due to the small capacitance of the OLED segments. This study presents a solution for highly segmented OLEDs to fulfill automotive requirements regarding electrostatic discharge (ESD) without cost driving external components but through the improvement of the OLED itself. This solution is designed to be cheap and simple in fabrication, derived from standard photolithography to ensure no impact on existing supply chains and flexible OLED fabrication. After introducing the improved device concept for highly segmented OLEDs and its boundary conditions, a detailed view on the corresponding fabrication steps is given. The capacitive response of the protected OLED segments with respect to OLEDs without the introduced protection layer is characterized via impedance spectroscopy. The results exhibit the functionality of the ESD protection layer and prove with automotive ESD stability requirements compliance.

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How to cite

APA:

Bechert, H., Almora, O., Regau, K., Matt, G., Brabec, C., & Wehlus, T. (2019). Thin-Film Electrostatic Discharge Protection for Highly Segmented OLEDs in Automotive Applications. Advanced Materials Technologies, 4(5), 1800696. https://dx.doi.org/10.1002/admt.201800696

MLA:

Bechert, Hermann, et al. "Thin-Film Electrostatic Discharge Protection for Highly Segmented OLEDs in Automotive Applications." Advanced Materials Technologies 4.5 (2019): 1800696.

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