Rollable Display Housing Antenna Segmentation for Stable Wireless Links
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Solution Overview
Problem
Existing electronic devices with deformable displays face challenges in maintaining effective wireless communication due to the interference caused by the display's rollable or slidable design, which affects the performance of conductive portions used for antenna functionality.
Innovation Solution
The electronic device incorporates a housing design with a first and second housing part that allows the display to roll into the first housing part, featuring a non-conductive portion between conductive portions to separate the antenna radiator effectively, ensuring communication through a conductive portion located far from the display area, thereby reducing interference.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the display is designed to be rollable or slidable to enable deformable display functionality, then the adaptability and versatility of the electronic device are improved, but the conductive portions used for antenna functionality are interfered with and communication performance deteriorates
Solution Approach 1:
The housing is divided into multiple conductive portions that are spatially separated from each other. Each conductive portion can function independently as an antenna element, and their separation reduces electromagnetic interference between them, especially when the display is in different deformation states
Solution Approach 2:
A non-conductive portion is introduced between the conductive portions to act as an electromagnetic shield or isolator. This intermediary structure prevents electromagnetic interference between adjacent conductive portions, ensuring stable antenna performance regardless of display position
2Device complexity
If the conductive portions are placed close to the display area to simplify housing structure, then the device complexity is reduced, but electromagnetic interference increases and radiation characteristics worsen
Solution Approach 1:
Instead of increasing horizontal distance between conductive portions and display, the non-conductive portion extends in the vertical dimension (thickness direction) to provide electromagnetic shielding. This vertical isolation effectively reduces interference without complicating the horizontal layout
3Productivity
If multiple conductive portions are used for both structural protection and communication functionality, then the housing serves multiple functions improving productivity, but the conductive portions interfere with each other affecting communication efficiency
Solution Approach 1:
The housing's conductive portions are segmented and spatially distributed, allowing each to function as an independent antenna element while collectively providing structural protection. This segmentation enables both multi-functionality and reduced interference
Solution Approach 2:
The conductive portions serve dual purposes: providing mechanical protection for the display and functioning as antenna elements for wireless communication. The non-conductive portion enables this multi-functionality by isolating the conductive elements from each other
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
This design enhances communication performance by minimizing electromagnetic interaction between the display and the antenna, leading to improved radiation characteristics and communication efficiency.
Implementation Method 1
The first non-conductive portion may be disposed between the first conductive portion and the second conductive portion
Implementation Method 2
The wireless communication circuit may be configured to communicate with an external electronic device through the second conductive portion
Data Source
AI summary
An electronic device includes a housing including a first housing part and a second housing part, a wireless communication circuit, and a display. The first housing part includes a first non-conductive portion disposed between a first edge and a second edge, a first conductive portion disposed between the first edge and the first non-conductive portion, and a second conductive portion disposed between the second edge and the first non-conductive portion. The second conductive portion is used for communication with an external electronic device.