Passive Electronic Paper Display Card for Dynamic Information Updates
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Solution Overview
Problem
Data cards become outdated quickly, leading to unnecessary production and disposal, and often fail to display current monetary values, resulting in inefficiency and waste.
Innovation Solution
Implementing a passive electronic paper display that can be selectively updated using an ion beam emitter or other charging devices to change the visual image, allowing for secure and efficient communication of changing information, such as access restrictions, advertising, and monetary values, without the need for new cards.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If information is printed on the card, then the card can display information visually, but the card becomes outdated quickly and must be replaced
Solution Approach 1:
The patent applies a passive electronic paper display that can be dynamically updated with new information without replacing the card itself. The display allows information to change from static printed text to dynamically modifiable content, resolving the contradiction between information currency and card waste by enabling multiple information states on a single physical card.
Solution Approach 2:
The patent changes the state of the display from static printed information to electronically modifiable information. By using electronic paper display technology that can be rewritten with different information content, the system allows the information parameter to change while the physical card remains in use, eliminating the need for replacement.
2Adaptability or versatility
If a passive electronic paper display is implemented, then the card can be updated dynamically, but the card structure becomes more complex
Solution Approach 1:
The patent extracts the active electronic components from the card structure, using a passive electronic paper display that does not require integrated circuits, batteries, or active processing units. This extraction maintains adaptability while minimizing the added complexity, as the display can be updated externally without requiring complex onboard electronics.
Solution Approach 2:
The passive electronic paper display serves multiple functions: it can display various types of information (monetary values, access restrictions, advertising), be updated through different methods (ion beam emitter, charging devices), and maintain information without power. This multi-functionality justifies the added complexity by providing versatile information update capabilities.
3Reliability
If an ion beam emitter is used to update the display, then secure controlled updates are possible, but the manufacturing process becomes more complex
Solution Approach 1:
The patent uses an ion beam emitter as an intermediary device to update the electronic paper display securely. The ion beam emitter acts as a controlled interface between the information source and the display, allowing secure updates without requiring complex encryption or authentication hardware on the card itself, thus maintaining reliability while managing 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
Enables continuous use of cards with updated information, reducing waste and production costs by allowing dynamic changes to the displayed content, including monetary balances and access permissions, while enhancing security through controlled image alteration.
Implementation Method 1
The information presented on the passive electronic paper display may be selectively changed using, for example, an ion beam emitter to control an electrical charge on the surface of the passive electronic paper display that changes the image presented
Data Source
AI summary
With a card including a passive electronic paper display configured to display a visual image, a method of presenting information on a card includes selectively changing a visual image displayed on the passive electronic paper display to update information represented by the visual image, and wherein the card is sized to be carried by a user.