학술논문
FlexDisplay: A Flexible Display Framework To Conserve Smartphone Battery Power
Document Type
Conference
Author
Source
2024 IEEE International Conference on Pervasive Computing and Communications Workshops and other Affiliated Events (PerCom Workshops) Pervasive Computing and Communications Workshops and other Affiliated Events (PerCom Workshops), 2024 IEEE International Conference on. :401-404 Mar, 2024
Subject
Language
ISSN
2766-8576
Abstract
Despite significant improvements, smartphones are still constrained by the limited capacity of their batteries. Modern smartphones tend to use organic light-emitting diode (OLED) displays, whose energy consumption depends both on the brightness and the color content. Since the display of smartphones is known to consume a significant portion of this energy, a number of prior systems have tried to reduce screen brightness, increase areas of dark zones on the screen or use colors that consume less energy to mitigate this problem. However, the amount of energy savings using these techniques are still limited, as the underlying compute required to render the content still consumes energy. In this work, we provide a framework FlexDisplay that disables the display of a limited portion of the app content, saves the underlying compute needed to render the content as well as the touch sensors in the corresponding display area. FlexDisplay supports disabling of content across multiple apps. We demonstrate it on 15 apps over different genres and show that the energy savings vary from 10%–47% of the total energy consumption of the smartphone, depending on the app and the disabled content.