Rollable Display Antenna Structure With Non-Metal Isolation
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Solution Overview
Problem
In electronic devices with rollable displays, the integration of an antenna structure is challenging due to space constraints, leading to potential interference with the rollable display, which limits antenna performance.
Innovation Solution
The electronic device incorporates a housing design with a non-metal area spaced apart from the rollable display's bending portion, using metal sheets and areas to form antenna structures that are electrically connected, ensuring sufficient spacing and enhanced antenna performance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the antenna structure is formed in the housing portion that slides relative to each other, then the antenna can be integrated into the rollable display device, but the antenna performance is limited due to interference from the rolled portion of the display
Solution Approach 1:
The housing is divided into a first housing and a second housing that can slide relative to each other. The antenna structure is specifically formed in the first housing, which remains stationary during operation, while the second housing with the rolled display portion can move independently. This segmentation isolates the antenna from interference caused by the moving rolled portion, resolving the contradiction between integration and performance.
Solution Approach 2:
A non-metal area is introduced as an intermediary element between the antenna structure in the first housing and the rolled portion of the display in the second housing. This non-metal area acts as a shielding or isolating layer that prevents electromagnetic interference from the rolled display portion from affecting the antenna performance, while still allowing the overall integration of the system.
2Adaptability or versatility
If the housing is designed with a separate motor structure for opening or closing, then the rollable display functionality is enabled, but the space for mounting the antenna structure is reduced
Solution Approach 1:
The housing is segmented into a first housing containing the antenna structure and a second housing containing the motor structure for the rollable display. This spatial segmentation allows both the antenna and motor structures to coexist without interfering with each other, resolving the space constraint issue while maintaining both functionalities.
Solution Approach 2:
The antenna structure is positioned in the first housing, utilizing the three-dimensional space available in the stationary portion of the device. The motor structure for the rollable display is placed in the second housing, effectively using the sliding dimension to accommodate both components without spatial conflict, thus resolving the mounting space limitation.
3Length of stationary object
If the antenna structure is placed closer to the rollable display, then the device thickness is reduced, but the antenna performance deteriorates due to interference
Solution Approach 1:
The device is segmented into a first housing with the antenna structure and a second housing with the rollable display. This segmentation allows the antenna to be positioned in the stationary first housing while the rolled display in the second housing can move away, maintaining sufficient spacing for optimal antenna performance without increasing the overall device thickness excessively.
Solution Approach 2:
A non-metal area serves as an intermediary shielding layer between the antenna structure and the rolled portion of the display. This intermediary element provides electromagnetic isolation that allows the antenna to be positioned closer to the display assembly without suffering from interference, thus reducing device thickness while maintaining antenna performance.
Data Source
AI summary
An electronic device includes: a first housing; a second housing configured to slide with respect to the first housing; a rollable display including a first display area and a second display area extending from the first display area and including a bending portion which is bent, and configured such that at least a part of the second display area moves on the basis of the sliding of the second housing; and a circuit board disposed in the first housing and including a communication circuit configured to process an RF signal, where a lower end wall of the first housing includes: a non-metal area in which at least a part of the non-metal area faces the bending portion as a non-metal area spaced a designated distance apart from the bending portion; and at least one metal sheet disposed to cover at least a part of the non-metal area.