Document Display Device for Secure Data Transmission
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Solution Overview
Problem
Existing security and value documents with RFID functionality lack effective protection against unauthorized data reading, as their RFID interfaces can be accessed without the consent of the document bearer.
Innovation Solution
Incorporating an integrated display device with both visual and machine-readable data outputs, where the machine-readable data is transmitted via a non-visual sub-area of the display, enabling secure communication and protection through cryptographic protocols.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If RFID interface is integrated into security documents for data transmission, then communication capability and data access are improved, but vulnerability to unauthorized reading and security risks increase
Solution Approach 1:
The display device is divided into a first sub-area for visual display and a second sub-area for machine-readable data transmission. This segmentation allows the document to provide both visual information to users and structured data to reading devices, while the separate machine-readable area can be controlled to transmit data only when authorized, thus improving communication capability while managing security risks.
Solution Approach 2:
The patent introduces an intermediary layer between the RFID interface and external reading devices through the use of a controlled machine-readable display area. This intermediary allows the system to mediate data access by converting internal data into visual display format that can be selectively read by external devices, providing an additional security layer while maintaining communication capability.
2Reliability
If machine-readable data is transmitted via display device, then secure communication and authorization control are improved, but device complexity increases
Solution Approach 1:
The display device is designed to serve multiple functions: it displays visual information to users through the first sub-area and simultaneously transmits machine-readable data through the second sub-area. This multi-functionality allows a single component to handle both user interaction and secure data communication, improving reliability without proportionally increasing device complexity.
Solution Approach 2:
The patent combines the visual display function and the machine-readable data transmission function into a single display device. By merging these functions into one component rather than using separate devices, the system achieves secure communication capability while minimizing the increase in overall device complexity.
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 solution enhances the security of documents by ensuring that only authorized access can read sensitive information, protecting against forgery and unauthorized data retrieval while allowing secure transmission of personalization and cryptographic keys.
Implementation Method 1
the display device (102) is controlled by control means (104) of the document (100) to output the second data (107) via a sub-area (119) in such a way that the output cannot be visually perceived
Data Source
Figure 1
Figure 2a~2b
Figure 3
AI summary
The invention relates to a document comprising a built-in display device (102), an electronic memory (126) for storing first (106) and second (107) sets of data, and control means (104; 122, 128, 131) for controlling the display device for reproducing the first set of data. The control means for controlling a partial region (119) of the display device are designed in such a way as to emit the second data via the partial region, the size of the partial region being selected in such a way that the emission of the second data via the partial region is visually imperceptible.