Electronic ID Card Display Security Against Forgery
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Solution Overview
Problem
Electronic identification cards with display devices are vulnerable to forgery and alteration, as image data can be easily changed, necessitating a security method to verify their authenticity.
Innovation Solution
Incorporating a display device with a one-time programmable memory region storing unique pattern data, which displays a unique pattern, such as a QR code or barcode, that is distinct to each card, allowing for verification of the card's authenticity by comparing stored and displayed information.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a display device is used to display card holder images, then the identification card becomes more modern and functional, but the card becomes vulnerable to forgery and alteration
Solution Approach 1:
The display device is divided into multiple memory regions: a first memory region for storing card holder image data and a second memory region for storing unique pattern data. This segmentation separates the vulnerable image display function from the secure unique pattern storage function, allowing the card to maintain both functionality and security.
Solution Approach 2:
A unique pattern (such as QR code, barcode, or color code) is introduced as an intermediary element between the display device and the verification system. This unique pattern serves as a mediator that provides authentication information without being directly visible or editable in the same way as the card holder image.
2Ease of operation
If image data is stored in the display device for display purposes, then the card can display card holder information, but the image data can be easily changed and forged
Solution Approach 1:
The memory is segmented into a first memory region for reversible image data and a second memory region for unique pattern data. This allows the image data to be easily changed for display purposes while the unique pattern data remains fixed and cannot be altered, ensuring data integrity.
Solution Approach 2:
The patent utilizes different storage characteristics for different data types: the first memory region allows for flexible, reversible storage of image data, while the second memory region uses one-time programmable memory that permanently stores unique pattern data. This parameter change in storage characteristics resolves the contradiction between ease of operation and data integrity.
3Reliability
If a unique pattern is displayed to prevent counterfeiting, then security is improved, but the display device complexity increases
Solution Approach 1:
The unique pattern display function is merged with the existing display panel structure. The display panel is configured to display both the card holder image and the unique pattern using the same physical display hardware, eliminating the need for separate display mechanisms and reducing overall device complexity.
Solution Approach 2:
The display panel is designed with multi-functionality, serving both as an image display device and as a unique pattern display device. This universal approach allows a single component to perform multiple functions, reducing the number of additional components needed and minimizing the increase in device complexity.
Data Source
AI summary
An electronic identification card includes a display device. The display device includes a first memory region configured to store image data about a card holder of the electronic identification card, a second memory region configured to store unique pattern data about a unique pattern that is unique to the electronic identification card, and a display panel configured to display an image of the card holder based on the image data stored in the first memory region, and configured to display the unique pattern based on the unique pattern data stored in the second memory region.