Flexible Display Antenna Switching for Stable Mobile Signal
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Solution Overview
Problem
The challenge of maintaining consistent antenna performance in mobile terminals equipped with flexible display screens, which undergo structural changes due to expansion and retraction, is not adequately addressed by existing technologies.
Innovation Solution
The implementation of a spare antenna at the edge of the flexible display screen, which compensates for performance degradation caused by structural changes, ensuring stability and potentially enhancing antenna performance by switching between primary and spare antennas based on the screen's state.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of moving object
If the flexible display screen is expanded to enlarge the screen area, then the screen area is increased, but the antenna performance is reduced
Solution Approach 1:
The antenna system is segmented into a primary antenna and a spare antenna. The primary antenna is disposed within the body while the spare antenna is disposed on the flexible display screen. This segmentation allows each antenna to serve different functions in different screen states, resolving the contradiction between screen area expansion and antenna performance maintenance.
Solution Approach 2:
The antenna system dynamically switches between the primary antenna and the spare antenna based on the screen state. When the flexible display screen is expanded, the system switches to the spare antenna to compensate for the performance degradation of the primary antenna. This dynamic switching mechanism maintains antenna performance while allowing screen area to vary.
2Ease of operation
If the flexible display screen is retracted to reduce the screen area, then the screen area is reduced for portability, but the antenna performance may be affected
Solution Approach 1:
The antenna switching mechanism dynamically adapts to the screen state. When the flexible display screen is retracted for portability, the system switches to the primary antenna which is disposed within the body and not affected by the retraction. This ensures antenna performance is maintained during portability operations.
Solution Approach 2:
The control module acts as an intermediary that monitors the screen state and automatically switches between the primary antenna and spare antenna. This intermediary mechanism ensures that the appropriate antenna is active in each screen state, maintaining antenna performance regardless of whether the screen is expanded or retracted.
3Reliability
If a spare antenna is added on the flexible display screen, then antenna performance is maintained, but the device complexity increases
Solution Approach 1:
The spare antenna on the flexible display screen serves multiple functions: it acts as the primary antenna when the screen is expanded and as a backup when the screen is retracted. This multi-functionality reduces the need for additional separate antenna systems, thereby limiting the increase in device complexity while maintaining antenna performance.
Solution Approach 2:
The antenna system is self-managing through automatic switching controlled by the control module that monitors screen state. The system automatically selects the appropriate antenna without requiring manual intervention or complex control mechanisms, reducing the effective complexity of the antenna system while maintaining reliability.
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
The solution maintains and enhances antenna performance by adapting to structural changes in flexible display screens, providing stable and efficient communication regardless of the screen's configuration.
Implementation Method 1
the state detection component includes a Hall sensor disposed within the body, and a magnet disposed at a side of the flexible display screen; the Hall sensor is configured to output a first signal to the control module when the flexible display screen is in the retracted state, and output a second signal to the control module when the flexible display screen is in the expanded state
Data Source
Figure 1
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AI summary
This disclosure relates to a mobile terminal (100), an antenna control method and a storage medium, which are applied to the mobile terminal (100) using a flexible display screen (102). The mobile terminal (100) includes a body (101) and a flexible display screen (102) disposed on the body (101). The flexible display screen (102) is configured to be switched between an expanded state and a retracted state. A primary antenna (116) is disposed within the body (101), and a spare antenna (117) for replacing the primary antenna (116) is disposed at an edge of the flexible display screen (102). The method includes: controlling the primary antenna (116) to be in a working state and the spare antenna (117) to be in a non-working state when the flexible display screen (102) is in the retracted state; and controlling the primary antenna (116) to be in a non-working state and the spare antenna (117) to be in a working state when the flexible display screen (102) is in the expanded state.