Crosslinked Polymer Layer for OTP Card Security
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Solution Overview
Problem
Information carrying cards face challenges in enhancing security and durability while maintaining low production costs, as they need to store increasing amounts of data and protect sensitive electronic components from damage during use.
Innovation Solution
A core layer for information carrying cards is developed, comprising a thermoplastic layer, an inlay layer with electronic components for displaying a one-time passcode (OTP), and a crosslinked polymer composition. The inlay layer includes light emitting diodes (LED) and a microcontroller, with a display module capable of showing digits 0-9, and the crosslinked polymer composition is made from curable precursors like acrylate or urethane acrylate, providing flexibility and protection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional plastic cards are used for information storage, then production cost is low, but security is compromised due to counterfeiting and information fraud
Solution Approach 1:
The patent uses a composite structure combining thermoplastic material with crosslinked polymer composition to create a multi-layer card structure. This composite approach enhances security features while maintaining manufacturing feasibility, addressing the contradiction between security improvement and production cost control
2Quantity of substance
If more information is stored in the card, then data capacity increases, but the card becomes more vulnerable to damage during flexing
Solution Approach 1:
The patent changes the physical and chemical parameters of the card material by introducing crosslinked polymer composition with specific crosslinking density and flexibility characteristics. This allows the card to maintain structural integrity and protect embedded electronic components during flexing while accommodating increased data storage capacity
3Reliability
If smart card technologies are implemented to prevent fraud, then security is improved, but manufacturing complexity increases
Solution Approach 1:
The patent segments the card structure into distinct functional layers: thermoplastic base layer, crosslinked polymer composition layer, and embedded electronic component layer. This segmentation allows each layer to be manufactured and quality-tested separately, reducing overall manufacturing complexity while maintaining advanced security features
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 enhances the security and durability of information carrying cards by enabling the display of OTPs, protecting electronic components, and ensuring the cards can withstand flexing and hot lamination processes, thus addressing the need for improved productivity at low costs.
Implementation Method 1
a crosslinked polymer composition disposed over the at least one thermoplastic layer and contacting the inlay layer
Implementation Method 2
The inlay layer comprises at least one light emitting diode (LED) component
Data Source
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AI summary
The disclosure provides a core layer for an information carrying card, resulting information carrying card, and methods of making the same. A core layer for an information carrying card comprises at least one thermoplastic layer, an inlay layer, and a crosslinked polymer composition. The inlay layer comprises at least one electronic component configured to display a one time passcode (OTP). The crosslinked polymer composition is disposed over the at least one thermoplastic layer and contacting the inlayer layer.