Thermal Modeling of Organic Light-Emitting Diode Display Panels

• Published in: Journal of display technology Vol. 11; no. 12; pp. 1048 - 1055
• Main Authors: Sure, Anita, Sarma, Kalluri R., Paramanandam, Karthikeyan, Desai, Raghuveer H., Mukherjee, Animesh, Baranwal, Vaibhav, Asokan, S.
• Format: Journal Article
• Language: English
• Published: New York IEEE 01-12-2015; The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
• Subjects: Active matrix; Active matrix displays; Computational fluid dynamics; Density; Density measurement; Diodes; Display devices; display temperature; Fins; Heat sinks; Heating; Mathematical models; Organic light emitting diodes; organic light-emitting diode (OLED); Power system measurements; power-consumption; Temperature
• ISSN: 1551-319X; 1558-9323
• DOI: 10.1109/JDT.2015.2443127

Power densities required to operate active-matrix organic-light-emitting diode (AMOLED) based displays for high luminance applications, lead to temperature rise due to self heating. Temperature rise leads to significant degradation and consequent reduction in life time. In this work numerical techniques based computational fluid dynamics (CFD) is used to determine the temperature rise and its distribution for an AMOLED based display for a given power density and size. Passive cooling option in form of protruded rectangular fins is implemented to reduce the display temperature.