Mobile Terminal Display Power Control via Proximity
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Solution Overview
Problem
Mobile terminal devices consume unnecessary power due to the back light remaining on for a certain period, requiring users to wait for it to turn off manually, which can be inconvenient and wasteful.
Innovation Solution
A mobile terminal device with a display module that can be turned off by detecting an object approaching the display using a proximity sensor, allowing users to manually cover the display to turn it off, while enabling touch operations for specific applications after shutdown.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If the back light is turned off automatically after a certain period to reduce power consumption, then power consumption is reduced, but the user must wait for it to turn off manually which is inconvenient
Solution Approach 1:
The system automatically detects when the user has finished viewing information (when no touch operations occur for a predetermined period) and turns off the display module autonomously, eliminating the need for manual intervention while reducing power consumption
Solution Approach 2:
The system monitors user interaction patterns through the touch detection module, using the absence of touch operations as feedback to determine when to turn off the display, creating a responsive automated control mechanism
2Use of energy by moving object
If the display module is turned off to save power, then power consumption is reduced, but touch operations cannot be performed after shutdown
Solution Approach 1:
The system dynamically adjusts the operational state of the display module based on real-time detection of approaching objects, transitioning between on and off states to balance power consumption with operational readiness
Solution Approach 2:
The system turns off the display module in advance when it detects that the user has finished interacting (no touch operations for predetermined period), preparing the system for a low-power state before the user actually needs to interact again
3Ease of operation
If the back light remains on for a certain period, then the user can view information continuously, but unnecessary power is consumed
Solution Approach 1:
The system autonomously determines when information viewing has concluded based on touch operation patterns and automatically turns off the display, eliminating continued power consumption after the user has finished viewing
Solution Approach 2:
The system replaces manual power management with automated electronic detection and control, using the proximity sensor and touch detection module to intelligently manage display power states
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Reduces power consumption by allowing users to control the display's on/off state through a simple hand gesture, enabling timely shutdown and preventing accidental information exposure to others.
Implementation Method 1
a proximity sensor configured to detect an object approaching the display module
Data Source
AI summary
A mobile terminal device includes a display module configured to turn on and display information, a touch detection module including a touch panel and being configured to detect a touch operation of a user with respect to the touch panel, and a processor configured to control the display module and touch detection module. The processor is configured to turn off a turned-on display module when an object approaches the display module in a case where an application program accompanied by information display is being executed, and disable the touch operation after turning off the display module in a case where the application program corresponds to a first application program, and enable the touch operation after turning off the display module in a case where the application program corresponds to a second application program.