Partial Screen Activation for Power-Constrained Mobile Displays
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Solution Overview
Problem
Users face difficulties in obtaining desired information when the display unit of mobile terminals is turned off, as the information displayed on a partial region activated in Always-on-Display mode is limited.
Innovation Solution
A mobile terminal and controlling method that activates a partial region of the screen in response to a display-off command, allowing information related to an application to be displayed, including parameters of the application's function or its progress, while the entire screen can be deactivated, and the brightness of this partial region can be adjusted based on ambient illumination intensity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If a partial region of the display is activated in Always-on-Display mode, then power consumption is reduced, but the amount of information displayed is limited
Solution Approach 1:
The display is divided into multiple regions (first region and second region) that can be independently controlled. The first region displays application information while the second region remains inactive, allowing selective activation of only the necessary display area to reduce power consumption while maintaining information display capability.
Solution Approach 2:
The display operates in a dynamic state where regions can be activated or deactivated based on user needs. The controller dynamically switches between displaying information on the first region versus the entire display, adapting the display state to balance power consumption and information availability.
2Loss of information
If the entire display is activated to show comprehensive information, then information accessibility is improved, but power consumption increases
Solution Approach 1:
The display is segmented into a first region for application information and a second region that can remain inactive. This segmentation allows the system to display comprehensive information on the first region while keeping the second region off, reducing overall power consumption while maintaining information accessibility.
Solution Approach 2:
Different regions of the display have different operational states. The first region maintains high quality information display while the second region remains inactive, creating local quality differences in terms of power consumption and display activity to optimize the balance between information accessibility and energy usage.
3Use of energy by moving object
If the display is completely turned off to save power, then power consumption is minimized, but user convenience deteriorates
Solution Approach 1:
The display is segmented such that the first region can remain active while the second region is turned off. This allows the system to maintain some display functionality for user convenience (displaying application information) while minimizing overall power consumption by keeping portions of the display inactive.
Solution Approach 2:
Instead of completely turning off the display or keeping it fully active, the system applies partial action by activating only the necessary first region. This partial activation provides sufficient user convenience for checking application information while avoiding the excessive power consumption of full display activation.
Data Source
AI summary
A mobile terminal and controlling method thereof is provided. The mobile terminal includes a display having at least one screen and operating in either a first mode or a second mode and a controller detecting a command to turn off the display, controlling the display to activate a first region of a screen, deactivate a second region of the screen and display information related to an application on the activated first region in response to the command when the display is operated in the first mode, the information including at least first information related to a parameter of a function performed by the application or second information related to progress of the function and control the display to deactivate the entire screen in response to the command when the display is operated in the second mode.