Freezing: Eliminating Unnecessary Drawing Computation for Low Power

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Numerous functionalities are provided by smartphones and prolonging their battery lifetime is an undeniably critical support issue. In this article, we propose a low-power scheme called unnecessary region freezing (URF) that achieves significant total power consumption reduction in smartphones by reducing unnecessary drawing computation that originates from a user’s uninteresting display region. Moreover, we devise a user interface that helps the user to use our scheme flexibly and easily. We implement URF on a real smartphone (Nexus 6). Then, we evaluate our scheme on top of an existing low-power scheme, partial display darkening. The results indicate that the URF scheme reduces total power consumption by average 5.1% through 12.5% depending on the size of the unnecessary region, compared with the partial display darkening scheme.
Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
Issue Date
2020-01
Language
English
Article Type
Article
Citation

IEEE TRANSACTIONS ON COMPUTER-AIDED DESIGN OF INTEGRATED CIRCUITS AND SYSTEMS, v.39, no.1, pp.56 - 61

ISSN
0278-0070
DOI
10.1109/TCAD.2018.2883904
URI
http://hdl.handle.net/10203/271567
Appears in Collection
CS-Journal Papers(저널논문)
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