An imaging-based photometric and colorimetric measurement method for characterizing OLED panels for lighting applications

Zhu, Yiting; Narendran, Nadarajah; Tan, Jianchuan; Mou, Xi

doi:10.1117/12.2062262

Cited by 1 publication

(2 citation statements)

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“…Other papers studied the effect of current density on the OLED aging. In [11], the authors suggested that the lifetime is a "power function" of current by plotting the measured lifespans as a function of the applied current. They used this model to characterize OLED panels.…”

Section: Existing Methods For Aging Modelingmentioning

confidence: 99%

“…The corresponding lifetimes are therefore mentioned L70 or L50, corresponding of a decay from the initial value of 30% and 50%, respectively. To date, there is no standard measurement method for OLEDs light source that can be adopted in performance or accelerated aging tests [8], [11]. Some standards and recommendations has been published (as a US standard, in September 2013 [12] that specifies the general safety conditions for the use of OLED lighting panels and an international IEC standard in 2014 [13] about the safety requirements) but the international standard IEC 62922, concerning the evaluation of the performance and reliability of OLEDs, has still not been published.…”

Section: Introductionmentioning

confidence: 99%

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Modeling the Luminance Degradation of OLEDs Using Design of Experiments

Salameh

Haddad

Picot

et al. 2019

IEEE Trans. on Ind. Applicat.

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Modeling the lifespan of OLED (Organic Light-Emitting Diode) is a complex task as it depends on differentpotentially interacting factors. As the literature on this subject is still scant, new parametric models for calculating the lifespan of OLED are proposed in this work. The Design of Experiment (DoE) methodology is used for cost and accuracy reasons. Different lifespan models based on thermal and electrical experimental aging tests are proposed. As stress factors, current density, temperature and their interactions, which are rarely taken into account in aging studies are simultaneously involved. The analysis of the model parameters highlights the prevalence of temperature compared to current density on the luminance performance of OLEDs. Non-linear models appear as the most accurate.

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Section: Existing Methods For Aging Modelingmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%