Abstract
We model and analyze the power consumption and resulting temperature
rise in active-matrix organic-light-emitting device (AMOLED) displays as a
function of the OLED efficiency, display resolution and display size. Power
consumption is a critical issue for mobile display applications as it directly
impacts battery requirements, and it is also very important for large area
applications where it affects the display temperature rise, which directly
impacts the panel lifetime. Phosphorescent OLEDs (PHOLEDs) are shown to offer
significant advantage as compared to conventional fluorescent OLEDs due to
high luminous efficiency resulting in lower pixel currents, reducing both
the power consumed in the OLED devices and the series connected driving thin-film
transistor (TFT). The power consumption and temperature rise of OLED displays
are calculated as a function of the device efficiency, display size, display
luminance and the type of backplane technology employed. The impact of using
top-emission OLEDs is also discussed.
© 2007 IEEE
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