Parametric lifespan models for OLEDs using Design of Experiments (DoE)

Farah Salameh (1) , Antoine Picot (2) , Laurent Canale (3, 4) , Georges Zissis (3) , Marie Chabert (5, 6) , Pascal Maussion (2)

1 LAPLACE - LAboratoire PLasma et Conversion d'Energie
2 LAPLACE-CODIASE - COmmande et DIAgnostic des Systèmes Electriques
3 LAPLACE-LM - Lumière et Matière
4 CNRS - Centre National de la Recherche Scientifique
5 IRIT-SC - Signal et Communications
6 Toulouse INP - Institut National Polytechnique (Toulouse)

Modeling the lifespan of OLED (Organic Light-Emitting Diode) is a complex task: different factors may impact the lifespan, with possible interactions between them. However, the literature on this subject is still scant. This work proposes new parametric models for the OLED lifespan. For cost and accuracy reasons, the Design of Experiment (DoE) methodology is used for the estimation of model parameters. Different models are computed from thermal and electrical experimental aging tests. These innovative models involve, simultaneously, the current density, the temperature and their interactions, which are rarely taken into account in aging studies. The analysis of the model parameters highlights the prevalence of temperature compared to current density on the OLED luminance performance.

Mots clés: Accelerated aging; OLED; Electrical stress; Thermal stress; Design of experiments (DOE); Lifespan prediction

Domaines: Optique / photonique; Matériaux; Electronique; Applications [stat.AP]

Farah Salameh, Antoine Picot, Laurent Canale, Georges Zissis, Marie Chabert, et al.. Parametric lifespan models for OLEDs using Design of Experiments (DoE). 53rd IEEE Industry Applications Society Annual Meeting (IAS 2018), Sep 2018, Portland, OR, United States. pp.1-9, ⟨10.1109/IAS.2018.8544500⟩. ⟨hal-02319746⟩