Journal of Information Display

The Korean Infomation Display Society (한국정보디스플레이학회)
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Display power analysis and design guidelines to reduce power consumption

  • Issa, Joseph (Department of Computer Engineering, Santa Clara University)
  • Received : 2012.08.22
  • Accepted : 2012.10.16
  • Published : 2012.12.31
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Abstract

Cold cathode fluorescent lamps (CCFLs) are used to provide lighting for liquid crystal displays (LCDs). This paper presents a set of guidelines for measurement characterization and design to reduce the power consumption of CCFL LCD backlight inverters and panel electronics. The proposed methods aim to reduce the backlight power consumption by fine-tuning a back-light inverter for a specific LCD, using several methods. First, the authors describe their power measurement methodology; and next, they identify different areas for tuning a backlight inverter for a given display. The experiment results showed that power savings can range from 50 to 200mW if the backlight inverter is properly tuned. This paper also proposes an optimized configuration for light-emitting device (LED) panels to reduce power loss by selecting a LED with a specific input voltage and number of cells to help minimize power loss.

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Cited by

  1. Miniature DC-DC Boost Converter for Driving Display Panel of Notebook Computer vol.12, pp.15, 2012, https://doi.org/10.3390/en12152924