Document Integrated Display Device Spectral Encoding Security
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Solution Overview
Problem
Existing security and value documents with RFID functionality can be read unauthorizedly, lacking effective protection mechanisms for data privacy, particularly for biometric data.
Innovation Solution
Incorporating an integrated display device with picture elements that emit light of specific spectral compositions, allowing the same color perception for users while encoding machine-readable information, making it difficult for counterfeiters to reproduce the document and enabling secure authentication through spectral detection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If RFID interface is integrated into security documents, then data can be accessed wirelessly for convenience, but unauthorized reading and data privacy violations occur
Solution Approach 1:
The patent applies local quality by differentiating between two types of display elements with distinct functions: visible image elements for user viewing and machine-readable elements with specific spectral signatures for secure authentication. This spatial differentiation allows the document to simultaneously provide convenient visual information while maintaining secure machine-verified data channels that resist unauthorized access.
Solution Approach 2:
The patent utilizes spectral composition variations (color changes at the spectral level) to encode machine-readable information. Different spectral signatures are assigned to different data types, allowing machines to distinguish between public and protected information. This spectral encoding provides a layer of security that is invisible to human users but verifiable by authentication systems.
2Loss of information
If display device is added to document, then machine-readable information can be encoded, but device complexity increases
Solution Approach 1:
The display device serves multiple functions simultaneously: it displays visible information to users, encodes machine-readable data through spectral variations, and provides authentication verification. By integrating these functions into a single device, the patent reduces overall system complexity compared to having separate components for each function.
Solution Approach 2:
The patent merges the visual display function and the machine-readable data encoding function into a single integrated display device. The same physical display elements that users see also emit specific spectral signatures that machines can detect, eliminating the need for separate components and reducing overall system complexity.
3Reliability
If spectral composition is used to encode information, then security is enhanced, but manufacturing precision requirements increase
Solution Approach 1:
The patent changes the spectral parameters of display elements to encode information. By varying spectral composition (wavelength, intensity) of different display elements, the system encodes machine-readable data without requiring complex manufacturing processes. This parameter-based encoding can be achieved through standard display technologies with minimal additional manufacturing 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
The solution significantly enhances document security by making it harder to counterfeit and ensures authorized access to sensitive data, while allowing machine-readable information to be verified without affecting the user's visual perception.
Implementation Method 1
At least a first subset of the image elements is configured to emit light of a first spectral composition to generate a specific color perception. At least a second subset of the image elements is configured to emit light of a second spectral composition to generate the same color perception.
Data Source
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AI summary
The invention relates to a document having an integrated display device (102) comprising image elements for a multi-color rendition, wherein at least one first partial amount of the image elements (104) is configured for the radiation of light of a first spectral composition for generating a color perception, and wherein at least one second partial amount of the image elements (105) is configured for the radiation of light of a second spectral composition for generating the same color perception.