E-Document Laminated Structure with Embedded Electromagnetic Shielding
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Solution Overview
Problem
Existing electronic documents with electromagnetic shielding elements for protecting data from unauthorized reading or writing often result in localized thickness increases, affecting aesthetics, storage, printing, and personalization, as well as the application of security films.
Innovation Solution
A laminated structure with coplanar flaps that integrate both electromagnetic disturbance elements and microcircuit devices, using layers of different thicknesses and adhesives to compensate for the added thickness, ensuring the structure remains flat and compatible with existing document formats.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If electromagnetic shielding elements are inserted into the E-document to protect data from unauthorized reading, then data security is improved, but the document experiences localized thickness increases that affect aesthetics, storage, printing, and personalization
Solution Approach 1:
The electromagnetic shielding element is nested within a cavity formed between two support layers, allowing the shielding function to be integrated without increasing the overall document thickness. The cavity houses the shielding element while the support layers maintain the external dimensions.
Solution Approach 2:
The invention transitions from a planar document structure to a three-dimensional laminated structure with cavities and recesses. By utilizing the thickness dimension strategically, the shielding element is accommodated within the document's internal volume rather than adding to its external footprint.
2Reliability
If electromagnetic shielding elements are added to the E-document, then data protection capability is improved, but the document's appearance and functionality are altered
Solution Approach 1:
The shielding element is nested within the document's internal structure, concealed between support layers and potentially within a cavity. This nesting approach preserves the document's external appearance while providing internal security functionality.
Solution Approach 2:
The support layers act as intermediaries that enclose the shielding element, mediating between the security requirement and the aesthetic requirement. These layers provide structural continuity and visual uniformity while housing the functional element.
3Reliability
If electromagnetic shielding elements are integrated into the E-document, then security features are enhanced, but the document becomes incompatible with existing document formats
Solution Approach 1:
The laminated structure with integrated shielding element is designed to be universally compatible with existing E-document formats. The support layers and cavity structure can accommodate various document types while maintaining standard dimensions and folding characteristics.
Solution Approach 2:
The shielding element is localized to specific regions where security is needed, rather than uniformly affecting the entire document. This localized approach allows the document to maintain its standard format and folding properties in non-critical areas.
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 allows for the integration of advanced security features without altering the document's appearance or functionality, enabling secure data exchange while maintaining the document's original thickness and usability.
Implementation Method 1
which comprises an electromagnetic disturbance element making it possible to disturb or block the electromagnetic wave emitted by an external reader
Data Source
Figure 1a~2
Figure 3a~4b
Figure 5a~6b
AI summary
The present invention relates to a laminated structure (8) for an e-document (1) that comprises a first substrate layer (10) defining at least two planar flaps (5, 6) connected by at least one folding line (14): the first flap (5) supporting an antenna (12) and a microcircuit device (11) enabling contactless data exchange; the second flap (6) supporting an electromagnetic disturbance element (13) placed relative to the microcircuit device so as to inhibit the contactless reading and/or writing by the microcircuit device in at least one folded configuration of the structure (8), a) the structure (8) comprising at least one layer of a heat-activatable or pressure-sensitive adhesive making it possible to receive, at least partially in the body thereof, the microcircuit device and/or the antenna and/or the electromagnetic disturbance element, and/or b) the flaps having at least one adhesive layer and/or a fibrous layer (15, 16) and/or a polymer layer having a different thickness for each of the flaps.