Publication Type
Conference Proceeding Article
Version
publishedVersion
Publication Date
9-2013
Abstract
In this paper, we present the design and implementation of Focus, a system for effectively and efficiently reducing power consumption of OLED displays on smartphones. These displays, while becoming exceedingly common still consume significant power. The key idea of Focus is that we use the notion of saliency to save display power by dimming portions of the applications that are less important to the user. We envision Focus being especially useful during low battery situations when usability is less important than power savings. We tested Focus using 15 applications running on a Samsung Galaxy S III and show that it saves, on average, between 23 to 34% of the OLED display power with little impact on task completion times. Finally, we present the results of a user study, involving 30 participants that shows that Focus, even with its dimming behaviour, is still quite usable.
Keywords
mobile games, power management, tone mapping
Discipline
Software Engineering
Research Areas
Software and Cyber-Physical Systems
Publication
UbiComp '13: Proceedings of the 2013 ACM International Joint Conference on Pervasive and Ubiquitous Computing, Zurich, September 8-12
First Page
573
Last Page
582
ISBN
9781450317702
Identifier
10.1145/2493432.2493445
Publisher
ACM
City or Country
New York
Citation
TAN, Kiat Wee; OKOSHI, Tadashi; MISRA, Archan; and BALAN, Rajesh Krishna.
Focus: A Usable & Effective Approach to OLED Display Power Management. (2013). UbiComp '13: Proceedings of the 2013 ACM International Joint Conference on Pervasive and Ubiquitous Computing, Zurich, September 8-12. 573-582.
Available at: https://ink.library.smu.edu.sg/sis_research/1825
Copyright Owner and License
Publisher
Creative Commons License
This work is licensed under a Creative Commons Attribution-NonCommercial-No Derivative Works 4.0 International License.
Additional URL
https://doi.org/10.1145/2493432.2493445