Foldable Display Shielding Layout for EMI and Structural Stability
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Solution Overview
Problem
Existing foldable display devices face challenges in maintaining consistent material and performance across folding and non-folding areas, leading to potential electromagnetic interference and structural instability.
Innovation Solution
A display device design incorporating a shielding member with identical materials in both folding and non-folding areas, featuring electromagnetic wave shielding layers and connection members to ensure uniform shielding and structural integrity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If different materials are used in folding and non-folding areas to accommodate structural differences, then structural adaptability is improved, but material consistency and manufacturing complexity worsen
Solution Approach 1:
The patent applies local quality by using the same material (e.g., ITO or ITO-containing layer) for both the first and second electrode patterns in different areas (folding and non-folding), ensuring material consistency while allowing structural flexibility through the electrode design itself rather than material variation
Solution Approach 2:
The electrode patterns serve multiple functions: they provide electrical connectivity, maintain structural integrity during folding, and ensure material consistency across different device areas. The same material layer performs both structural and functional roles in folding and non-folding regions
2Object-affected harmful factors
If shielding structures are added to block electromagnetic interference, then electromagnetic shielding performance is improved, but device structure complexity increases
Solution Approach 1:
The patent merges the shielding function with existing structural elements by using the same ITO-containing layers and electrode patterns to provide both electrical functionality and electromagnetic shielding. The shielding effect is achieved through the conductive properties of materials already present in the display structure, rather than adding separate shielding layers
Solution Approach 2:
The ITO-containing layers and electrode patterns perform dual functions: electrical conduction for display operation and electromagnetic wave shielding. This multi-functionality reduces the need for additional dedicated shielding structures, maintaining device simplicity while achieving effective EMI protection
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 effectively shields electromagnetic interference and enhances structural stability, simplifying the device structure, reducing manufacturing costs, and improving efficiency.
Implementation Method 1
a first electromagnetic wave shielding layer disposed under the shielding member, a second electromagnetic wave shielding layer disposed under the shielding member and spaced apart from the first electromagnetic wave shielding layer, and a connection member disposed under the shielding member, disposed between the first electromagnetic wave shielding layer and the second electromagnetic wave shielding layer, and including an electromagnetic wave shielding sheet
Data Source
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AI summary
A display device includes a display panel, a digitizer member disposed under the display panel, a shielding member disposed under the digitizer member, a first electromagnetic wave shielding layer disposed under the shielding member, a second electromagnetic wave shielding layer disposed under the shielding member and spaced apart from the first electromagnetic wave shielding layer, and a connection member disposed under the shielding member, disposed between the first electromagnetic wave shielding layer and the second electromagnetic wave shielding layer, and including an electromagnetic wave shielding sheet.