Intelligent Label Pixel Verification for Bistable Display Reliability
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Solution Overview
Problem
Intelligent labels struggle to reliably verify that intended messages are perceptible by humans or machines, especially under environmental stress or tampering, which is crucial for ensuring the safety and accountability of goods during transportation and use.
Innovation Solution
The intelligent label measures the electrical characteristics of pixels on a bistable display to determine if the intended message is perceivable, generating a contrast and color profile to compare with the actual message displayed, allowing for verification of message perceptibility and creating a historical record of the visual state over time.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If intelligent labels use electro-optic displays to show messages about goods condition, then information visibility is improved, but reliability of message verification deteriorates because there is no way to confirm the actual message displayed
Solution Approach 1:
The patent implements a feedback mechanism where the intelligent label's electronics interrogate the display to verify the actual message being shown. The system reads back the display content and compares it with the intended message, providing continuous verification feedback to ensure message accuracy and detect any display failures or tampering.
Solution Approach 2:
The patent utilizes the optical properties of electro-optic display materials by measuring their electrical characteristics and generating contrast and color profiles. By monitoring changes in the display's optical characteristics, the system can verify whether the intended message is actually perceptible and detect any deviations from the expected display state.
2Reliability
If intelligent labels are equipped with verification electronics to interrogate displays, then message verification capability is improved, but device complexity increases
Solution Approach 1:
The patent integrates multiple functions into a single electronics system that can both control the electro-optic display and verify its output. The same electronic circuitry used to drive the display is also employed to interrogate and read back the display content, eliminating the need for separate verification hardware and reducing overall system complexity.
Solution Approach 2:
The intelligent label performs self-verification by using its own electronics to interrogate and verify its display output without requiring external verification equipment. The system autonomously monitors its own message accuracy and can detect display failures or tampering independently.
3Reliability
If intelligent labels create historical records of displayed messages, then accountability is improved, but loss of time for data processing increases
Solution Approach 1:
The patent implements continuous background monitoring that captures and stores display verification data in real-time as historical records. By continuously logging verification results during normal operation rather than processing data on-demand, the system maintains accountability records without requiring additional processing time when verification is needed.
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 ensures that the proper message is confirmed to be displayed and perceivable, enhancing liability assessment and trustworthiness throughout the distribution and use cycle of goods.
Implementation Method 1
benefit from electro-optic devices that display messages that alert, update and inform the persons or machines proximate to them
Data Source
AI summary
Briefly, a method for verifying the visual perceptibility of a display is provided. An intended message is written to a bistable display. Pixels that comprise portions of the message are measured and evaluated to determine if the message actually displayed on the bistable display was perceptible by a human or a machine. In some cases, information regarding the message actually perceivable from the display may be stored for later use. Responsive to determining that a message is perceivable or not perceivable, alarms may be set, one or more third parties notified, or additional display features may be set.