TY - JOUR
T1 - CurA
T2 - A framework for quality-retaining power saving on mobile OLED displays
AU - Lin, Chun Han
AU - Kang, Chih Kai
AU - Hsiu, Pi Cheng
N1 - Funding Information:
A preliminary version [Lin et al. 2014b] of this article appears in the Proceedings of the IEEE/ACM Design Automation Conference (DAC) 2014. This work was supported in part by the Ministry of Science and Technology of the Republic of China under grants 102-2221-E-001-007-MY2 and 104-2628-E-001-003-MY3. Authors’ addresses: C.-H. Lin, Department of Computer Science and Information Engineering, National Taiwan Normal University, Taipei 116, Taiwan; email: chlin@csie.ntnu.edu.tw; C.-K. Kang, Research Center for Information Technology Innovation, Academia Sinica, Taipei 115, Taiwan; email: akaikang@citi.sinica.edu.tw; P.-C. Hsiu, Research Center for Information Technology Innovation (CITI), and Institute of Information Science (IIS), Academia Sinica, Taipei 115, Taiwan; email: pchsiu@citi.sinica.edu.tw. Permission to make digital or hard copies of part or all of this work for personal or classroom use is granted without fee provided that copies are not made or distributed for profit or commercial advantage and that copies show this notice on the first page or initial screen of a display along with the full citation. Copyrights for components of this work owned by others than ACM must be honored. Abstracting with credit is permitted. To copy otherwise, to republish, to post on servers, to redistribute to lists, or to use any component of this work in other works requires prior specific permission and/or a fee. Permissions may be requested from Publications Dept., ACM, Inc., 2 Penn Plaza, Suite 701, New York, NY 10121-0701 USA, fax +1 (212) 869-0481, or permissions@acm.org. ©c 2016 ACM 1539-9087/2016/08-ART76 $15.00 DOI: http://dx.doi.org/10.1145/2909875
Publisher Copyright:
© 2016 ACM.
PY - 2016/8
Y1 - 2016/8
N2 - Organic Light-Emitting Diode (OLED) technology is regarded as a promising alternative to mobile displays. In this article, we introduce the design, algorithm, and implementation of a novel framework called CURA for quality-retaining power saving on mobile OLED displays. First, we link human visual attention to OLED power saving and model the OLED image scaling optimization problem. The objective is to minimize the power required to display an image without adversely impacting the user’s visual experience. Then, we present the algorithm used to solve the modeled problem, and prove its optimality even without an accurate power model. Finally, based on the framework, we implement two practical applications on a commercial OLED mobile tablet. The results of experiments conducted on the tablet with real images demonstrate that CURA can reduce significant OLED power consumption while retaining the visual quality of images.
AB - Organic Light-Emitting Diode (OLED) technology is regarded as a promising alternative to mobile displays. In this article, we introduce the design, algorithm, and implementation of a novel framework called CURA for quality-retaining power saving on mobile OLED displays. First, we link human visual attention to OLED power saving and model the OLED image scaling optimization problem. The objective is to minimize the power required to display an image without adversely impacting the user’s visual experience. Then, we present the algorithm used to solve the modeled problem, and prove its optimality even without an accurate power model. Finally, based on the framework, we implement two practical applications on a commercial OLED mobile tablet. The results of experiments conducted on the tablet with real images demonstrate that CURA can reduce significant OLED power consumption while retaining the visual quality of images.
KW - And Phrases: OLED displays
KW - Human visual attention
KW - Low power
KW - Mobile systems
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U2 - 10.1145/2909875
DO - 10.1145/2909875
M3 - Article
AN - SCOPUS:85021198143
SN - 1539-9087
VL - 15
JO - ACM Transactions on Embedded Computing Systems
JF - ACM Transactions on Embedded Computing Systems
IS - 4
M1 - 76
ER -