OLED Electrical Equivalent Device for Driver Topology Design

Buso, David; Bhosle, Sounil; Yang, Liu; Ternisien, Marc; Renaud, Cédric; Chen, Yuming

doi:10.1109/tia.2013.2272432

Cited by 41 publications

(21 citation statements)

References 15 publications

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“…In the current section authors focus mainly on the electrical response. The approach consists of a numerical study of an existing OLED electrical model modified to take into account the on-off configuration [13] [14]. The goal is to identify which parameter/element of the model affects the most the electrical impulse responses.…”

Section: Equivalent Electric Circuitmentioning

confidence: 99%

“…A modelling approach was followed to study the impact of the fabrication process and geometry of two OLEDs on their electrical and optical responses. More precisely, this study focuses on how the geometry and the fabrication process impact the OLED impulse response by straightforward analysis of a modified electrical model [13] [14] that takes into account the on-off regime, in the presence of an ultra-short pulse. This leads to identify and optimize the dominant parameters/elements that limit the time response of the OLED.…”

mentioning

confidence: 99%

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Electrical and Optical Impulse Response of High-Speed Micro-OLEDs Under UltraShort Pulse Excitation

Zeng

Chime

Chakaroun

et al. 2017

IEEE Trans. Electron Devices

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Section: Equivalent Electric Circuitmentioning

confidence: 99%

mentioning

confidence: 99%

Electrical and Optical Impulse Response of High-Speed Micro-OLEDs Under UltraShort Pulse Excitation

Zeng

Chime

Chakaroun

et al. 2017

IEEE Trans. Electron Devices

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“…The semiconductor nature makes the V-I characteristics of the OLED similar to the LED [7]. In order to accurately describe the V-I characteristic curve of LEDs, the Taylor series for LEDs has been proposed in prior works [11]- [13].…”

Section: Proposed Four-parameter Taylor Series Based Oled Modelmentioning

confidence: 99%

“…9. 10 shows the measured result of the OLED equivalent capacitance versus the OLED forward voltage V OLED [7]. According to the measured results listed in Table IV, the charge Q COLED of the intrinsic capacitor at different forward voltage V OLED can be calculated from Equation (8) to plot, as shown in Fig.…”

Section: Referring Tomentioning

confidence: 99%

“…The structure of the OLED consists of the organic layers inserted between an anode and a cathode [7]- [10]. In the organic layers, the hole injection layer (HIL) and electron injection layer (EIL) are used to optimize charge carrier injection [7]- [10]. The architecture of the OLED is different from the LED, two electrodes and the organic layers form a capacitor reaching several μFs for the OLED, as shown in Fig.…”

Section: Introductionmentioning

confidence: 99%

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OLED equivalent circuit model with temperature coefficient and intrinsic capacitor

Lin

Tsai

Buso

et al. 2014

2014 IEEE Industry Application Society Annual Meeting

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Thispaper presents an Organic-Light-Emitting-Diode (OLED) equivalent circuit model with temperature coefficient and intrinsic capacitor. In order to precisely describe the OLED non-linear V-I characteristics at different junction temperatures, four parameters: maximum operating point, rated operating point, knee point, and temperature coefficient, are obtained from the OLED V-I curves to establish the improved Taylor series based OLED model. Furthermore, in order to perform the transient and AC simulations of the OLED drivers, the proposed model can be used to generate the V-I look-up table for the voltage-controlled-piecewise-linear (VPWL) behavior model for the time-domain and frequency-domain circuit simulations. Besides, the intrinsic capacitor of the OLED is voltage dependent and can be modeled with the piecewise-linear (PWL) behavior model to associate with the built VPWL behaviormodel for the OLED circuit simulations. Finally, the measured results are provided to compare with the modeled V-I curves, transient simulations, and AC simulations of the OLED. Index Terms-AC Model, DC Model, Equivalent circuit Model, Organic-Light-emitting-diode, OLED, Modeling, Temperature coefficient, Taylor series expression.I.

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Simulation of Charge Carriers in Organic Electronic Devices: Methods with their Fundamentals and Applications

Zojer

2021

Advanced Optical Materials

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Device modeling is an established tool to design and optimize organic electronic devices, be them organic light emitting diodes, organic photovoltaic devices, or organic transistors and thin‐film transistors. Further, reliable device simulations form the basis for elaborate experimental characterizations of crucial mechanisms encountered in such devices. The present contribution collects and compares contemporary model approaches to describe charge transport in devices. These approaches comprise kinetic Monte Carlo, the master equation, drift‐diffusion, and equivalent circuit analysis. This overview particularly aims at highlighting the following three aspects for each method: i) The foundation of a method including inherent assumptions and capabilities, ii) how the nature of organic semiconductors enters the model, and iii) how major tuning handles required to control the device operation are accounted for, namely temperature, external field, and provision of mobile carriers. As these approaches form a hierarchy of models suitable for multiscale modeling, this contribution also points out less established or even missing links between the approaches.

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OLED Electrical Equivalent Device for Driver Topology Design

Cited by 41 publications

References 15 publications

Electrical and Optical Impulse Response of High-Speed Micro-OLEDs Under UltraShort Pulse Excitation

Electrical and Optical Impulse Response of High-Speed Micro-OLEDs Under UltraShort Pulse Excitation

OLED equivalent circuit model with temperature coefficient and intrinsic capacitor

Simulation of Charge Carriers in Organic Electronic Devices: Methods with their Fundamentals and Applications

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