Partial Display Wake-Up for Mobile Power Reduction
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Solution Overview
Problem
Mobile devices face significant power consumption challenges when transitioning from a sleep state to a wake-up state, particularly due to the continuous operation of display units, which reduces battery life and increases resource usage.
Innovation Solution
The method involves detecting the change from a sleep state to a wake-up state and partially turning on the display unit to show only a specific operating region, thereby reducing unnecessary power consumption and resource usage. This is achieved by implementing a power saving mode that controls the display unit's operation based on user settings.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the display unit operates continuously to provide full functionality, then the device performance and user experience are improved, but the power consumption increases significantly
Solution Approach 1:
The display unit is divided into multiple regions (first region and second region) that can be independently controlled. The first region displays essential information while the second region remains off or displays minimal content, allowing selective operation of display portions to reduce overall power consumption while maintaining necessary functionality.
Solution Approach 2:
Instead of turning on the entire display unit, the patent applies partial action by activating only the necessary first region of the display. This partial operation provides sufficient information display for wake-up functionality while avoiding the excessive power consumption of full display operation.
2Productivity
If the entire display unit is turned on upon wake-up, then the operating region is fully visible, but unnecessary power consumption and resource usage occur
Solution Approach 1:
The display is segmented into a first region for essential wake-up information and a second region that can remain inactive. This segmentation allows the operating region to be visible and functional while avoiding the energy loss of activating the entire display unit.
Solution Approach 2:
Different regions of the display are assigned different operational qualities. The first region has high operational quality for displaying critical information, while the second region has reduced or no operational quality, optimizing the balance between visibility and power consumption.
3Ease of operation
If the system functions are fully activated upon wake-up, then the device is ready for immediate use, but resource consumption increases
Solution Approach 1:
System functions are segmented into essential functions (displaying wake-up information) and non-essential functions. Only the essential first region and corresponding functions are activated upon wake-up, while non-essential functions and the second display region remain inactive, reducing resource consumption while maintaining basic system readiness.
Data Source
AI summary
A method and apparatus capable of minimizing power consumption occurring when a mobile device is changed from a sleep state to a wake-up state by partially controlling on/off of a display unit and partial booting control of a system function are provided. The method includes detecting a change of the mobile device from a sleep state to a wake-up state, turning on a display unit of the mobile device such that a first section of the mobile device displays an operating region, the first section including one or more portions of the display unit and less than an entire screen of the display unit and waiting for a system function registered in the operating region.