Dual Display Mobile Terminal with Orientation-Based Mode Switching
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Solution Overview
Problem
Mobile terminals face challenges in allocating sufficient space for user interfaces while maintaining mobility and power efficiency, as they need to support diverse functions and improve power efficiency.
Innovation Solution
A mobile terminal using two display modules, such as a touch screen and electronic paper, with an acceleration sensor to change states based on rotation, allowing efficient operation control by displaying different indicators on each module.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of moving object
If a single large display is used to provide sufficient UI space for diverse functions, then the user interface space is improved, but the device size and weight increase, compromising mobility and portability
Solution Approach 1:
The display system is divided into two separate display modules positioned on opposite sides of the device. Each display can be independently controlled and optimized for specific functions, allowing the total display area to be distributed across multiple smaller units rather than consolidated into one large display, thereby maintaining adequate UI space while preserving device portability
2Area of moving object
If a single large display is used to provide sufficient UI space for diverse functions, then the user interface space is improved, but the device complexity increases
Solution Approach 1:
The display system is divided into two separate display modules positioned on opposite sides of the device. Each display can be independently controlled and optimized for specific functions, allowing the total display area to be distributed across multiple smaller units rather than consolidated into one large display, thereby maintaining adequate UI space while preserving device portability
Solution Approach 2:
The system dynamically switches between different display modules based on detected motion states. The controller receives motion data and automatically determines which display should be active, providing adaptive functionality that simplifies user interaction without requiring manual configuration or complex user decisions about display selection
3Use of energy by moving object
If high power efficiency is required, then energy consumption is reduced, but the functionality and UI capabilities are limited
Solution Approach 1:
The system employs periodic or conditional activation of display modules based on motion detection. Rather than keeping both displays continuously active or requiring the user to manually switch between them, the controller periodically evaluates motion state data and activates only the appropriate display module when needed, reducing overall power consumption while maintaining full functionality when required
Solution Approach 2:
The system dynamically switches between different display modules based on detected motion states. The controller receives motion data and automatically determines which display should be active, providing adaptive functionality that simplifies user interaction without requiring manual configuration or complex user decisions about display selection
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
Enables efficient use of space and improved power efficiency by switching between operational modes based on device orientation, enhancing user convenience and functionality.
Implementation Method 1
an acceleration sensor configured to measure a direction of gravitational acceleration
Data Source
AI summary
A mobile terminal equipped with first and second display modules provided at the front and the rear, respectively, and a method of controlling the mobile terminal, is provided. The method includes displaying a screen image related to a first operating mode on the first display module, if it is determined that the mobile terminal has been rotated on a predetermined axial direction, switching the mobile terminal from the first operating mode to a second operating mode; and displaying a screen image related to the second operating mode on the second display module. Therefore, it is possible to control various operations performed by the mobile terminal upon the motion of the mobile terminal using the first and second display modules.