Transparent Cover With Magnetic And Shielding Layers For Portable Devices
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Solution Overview
Problem
Existing portable electronic device protection accessories fail to effectively sense the rear cover while allowing image visibility and preventing scratches, and they do not adequately block magnetic fields when flipped over.
Innovation Solution
A transparent or semi-transparent cover accessory with a magnetic portion and shielding portion, where the magnetic portion is integrated within a hard layer and the shielding portion is positioned above it, allowing image transmission and sensor detection when the cover is in front, and blocking magnetic fields when flipped to the rear, using a soft layer for protection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a magnet is added to the protection cover for sensing, then the cover can be detected by the portable electronic device, but the magnetic field may interfere with the device when the cover is flipped over
Solution Approach 1:
The cover is divided into functionally independent layers: a magnetic portion containing the magnet for sensing, and a shielding portion containing the magnetic shielding material. This segmentation allows each layer to perform its specific function without interfering with the other, resolving the contradiction between sensing accuracy and magnetic field interference.
Solution Approach 2:
A magnetic shielding material is introduced as an intermediary between the magnet and the portable electronic device. This intermediary blocks or redirects magnetic field lines, preventing the magnet's field from reaching the device's sensor when the cover is flipped over, while still allowing the magnet to be detected when the cover is in the front position.
2Illumination intensity
If a transparent cover is used to maintain image visibility, then the user can see the display through the cover, but the cover may not provide sufficient protection against scratches
Solution Approach 1:
The cover employs a composite structure combining transparent or semi-transparent material for visibility with a soft protective layer for scratch resistance. The soft layer is configured to contact the display surface, providing cushioning and protection, while the transparent upper layer maintains optical transmission. This composite approach resolves the contradiction between visibility and protection.
3Object-affected harmful factors
If a magnetic shielding portion is added to block magnetic fields, then magnetic field interference is reduced, but the cover structure becomes more complex
Solution Approach 1:
The magnetic shielding portion is merged with the cover structure as an integrated layer rather than a separate component. The shielding material is incorporated into the cover's laminated structure, combining the shielding function with the existing cover architecture. This merging approach reduces overall structural complexity while maintaining effective magnetic field blocking.
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 accurate sensing of the cover's position, prevents scratches, and maintains image visibility while effectively blocking magnetic fields when flipped, enhancing protection and usability.
Implementation Method 1
the accessory can be sensed by the sensor of the portable electronic device via a magnetic field of the magnetic portion disposed in the cover portion
Implementation Method 2
the accessory is capable of blocking the magnetic field of the magnetic portion from being sensed by the sensor of the portable electronic device via the shielding portion disposed in the cover portion
Data Source
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AI summary
An accessory is adaptable for a portable electronic device, including a display and a rear surface facing away from the display. The accessory includes a cover portion, a magnetic portion and a shielding portion. The cover portion is completely transparent or semi-transparent, and adaptable to cover the display of the portable electronic device. The magnetic portion is disposed within the cover portion. The shielding portion is disposed within the cover portion. When the cover portion covers the display of the portable electronic device, the magnetic portion is disposed between the shielding portion and the portable electronic device. When the cover portion is flipped over to the rear surface of the portable electronic device, the shielding portion is disposed between the magnetic portion and the portable electronic device. The magnetic portion and shielding portion may be completely transparent or semi-transparent.