Portable Data Carrier with Optically Highlighted Marking Elements
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Solution Overview
Problem
The production of chip cards with displays is complex due to the sensitivity of display technology to hot lamination processes, making it difficult to integrate displays into the card structure effectively.
Innovation Solution
A portable data carrier with a character field and optically highlightable marking elements, where transaction data is displayed by optically highlighting the respective marking elements according to a predetermined coding, eliminating the need for a conventional display and allowing for simple and cost-effective production.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If a conventional display is integrated into the chip card, then transaction data can be displayed, but the production complexity increases and the display is sensitive to hot lamination processes
Solution Approach 1:
The patent extracts the display function from a conventional display device and implements it through individually addressable marking elements (such as LEDs or other optically highlightable components) that can be selectively activated to display characters. This extraction allows the display functionality to be integrated without requiring a complex conventional display system, thereby reducing production complexity while maintaining reliability during hot lamination processes.
2Ease of operation
If a multi-segment display is used, then transaction data can be displayed, but the integration into card structure becomes complex
Solution Approach 1:
The patent segments the display into individually addressable marking elements, each corresponding to a specific character or graphic element. This segmentation allows each element to be independently controlled and activated, enabling the display of transaction data without requiring a complex integrated display system. The segmented approach simplifies integration into the card structure while maintaining full display functionality.
3Productivity
If hot lamination techniques are used for chip card production, then manufacturing is efficient, but display technology is damaged due to high temperature and pressure
Solution Approach 1:
The patent employs marking elements such as LEDs or other optically highlightable components that are resistant to hot lamination processes. These elements can withstand the high temperature and pressure conditions of hot lamination manufacturing, allowing efficient production without damaging the display functionality. The marking elements are designed to be durable and resistant to the harmful effects of hot lamination, ensuring long-term reliability.
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 the simple and inexpensive display of transaction data, using light-emitting diodes that are robust and easy to integrate, allowing for various coding methods and universal use across different transaction data types without restricting the character space or alphabet, thus being broadly applicable.
Implementation Method 1
The marking elements can be provided by means of simple electronic components, for example--as described in more detail below--by means of light-emitting diodes
Data Source
Figure 1A~1B
Figure 2
AI summary
The carrier (10) has a character region (30) including multiple characters (31, 31'), and a set of optically pointed marking elements (41, 41') assigned to each character. The carrier is arranged for generating transaction data e.g. credit card verification number, such that the characters are displayed by the optically pointed marking elements according to predetermined coding. A decoding information device (60) is arranged for producing decoded information (61, 61') using LEDs for decoding the transaction data, where the LEDS emit light. Independent claims are also included for the following: (1) a method for displaying transaction data using a portable data carrier (2) a transaction system comprising a data processing unit.