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Carroll A, Heiser G. An analysis of power consumption in a Smartphone. Power consumption of micro-encapsulated display for smart handheld applications. A new MEMS-based display technology. Quality-based backlight optimization for video playback on handheld devices. Hindawi Publishing Corporation Advances in Multimedia. Prakash P, Shin K. Power optimization techniques for energy efficient systems, Texas Instruments; New visible light sensor technology pays power management dividends in automatic brightness control applications.
Microsemi Integrated Products; Dynamic backlight adaptation for low-power handheld devices. Using fuzzy logic and light-sensor for automatic adjustment of backlight brightness in a mobile computer. Article Tools Print this article. How to cite item.
Email this article Login required. Email the author Login required. Post a Comment Login required. Giribabu 1 , B. Sridharan 1 , Vipin Tyagi 2. To use ambient light and distance as parameters to optimize power consumption of a projector system without deteriorating visual experience.
In this work, an efficient approach to optimize power consumption of a projector module is proposed using a light sensor and a distance sensor. Depending on the ambient light condition and distance between projector module and screen, backlight of the projector is adjusted, which affects the power consumed by the module. We have taken different ambient light condition ranging from LUX value of 1 to LUX value of approximately , as other conditions are not of practical use.
The experience of a viewer depends on surrounding environment specifically ambient light. Both of these parameters are combined and used in this work to have an adaptive projector system. The outcomes of the work discussed in this paper can be used in most of the display system. The proposed method has taken care of both ambient light and distance between the screen and source by taking care on light that falls on per square unit area.
References Carroll A, Heiser G. Indian Society of Education and Environment No: