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Journal of Display Technology

Journal of Display Technology


  • Vol. 4, Iss. 1 — Mar. 1, 2008
  • pp: 47–53

Power Consumption and Temperature Increase in Large Area Active-Matrix OLED Displays

Min-Hao Michael Lu, Michael Hack, Richard Hewitt, Michael S. Weaver, and Julia J. Brown

Journal of Display Technology, Vol. 4, Issue 1, pp. 47-53 (2008)

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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

Min-Hao Michael Lu, Michael Hack, Richard Hewitt, Michael S. Weaver, and Julia J. Brown, "Power Consumption and Temperature Increase in Large Area Active-Matrix OLED Displays," J. Display Technol. 4, 47-53 (2008)

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