Display Panel Current Comparison for Rapid Abnormality Detection
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Solution Overview
Problem
Existing image display devices lack efficient methods to quickly detect visual abnormalities in display panels, which can lead to malfunctions that are difficult to identify.
Innovation Solution
An image display device equipped with a predicted current amount calculator, actual current amount measurement unit, current comparison unit, and abnormality determiner, which compares predicted and actual current amounts to determine panel abnormalities, utilizing a field programmable gate array (FPGA) to integrate these functions and facilitate rapid detection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional visual inspection methods are used to detect display panel abnormalities, then the system complexity remains low, but the detection speed and reliability are insufficient
Solution Approach 1:
The patent replaces manual visual inspection with an automated electronic monitoring system that uses current measurement and comparison circuits to detect display panel abnormalities. This substitution of mechanical/manual detection with electronic automation improves reliability while the modular design keeps complexity manageable.
Solution Approach 2:
The monitoring system enables the display device to self-diagnose abnormalities by automatically measuring current consumption, comparing it with expected values, and identifying faults without requiring external manual inspection. This self-monitoring capability enhances reliability while maintaining relatively simple system architecture.
2Productivity
If manual inspection methods are used for detecting display abnormalities, then the device complexity is low, but the detection time is excessive and productivity is reduced
Solution Approach 1:
The patent replaces slow manual inspection processes with automated electronic current measurement and comparison systems. This substitution dramatically increases detection speed by continuously monitoring current consumption and immediately identifying deviations from normal operating parameters.
Solution Approach 2:
The monitoring system implements continuous feedback by measuring actual current consumption, comparing it with expected current values, and immediately detecting abnormalities when deviations occur. This closed-loop feedback mechanism enables rapid abnormality detection and improves overall system productivity.
3Reliability
If comprehensive monitoring of all display panels is implemented, then detection coverage is improved, but the system complexity and cost increase
Solution Approach 1:
The patent divides the monitoring system into modular components, with each display panel having its own dedicated current measurement and comparison circuit. This segmentation allows comprehensive monitoring of all panels while keeping each monitoring unit simple and manageable, preventing overall system complexity from becoming uncontrolled.
Solution Approach 2:
The monitoring system uses universal current measurement and comparison circuits that can be applied to all display panels with the same basic architecture. This multi-functionality approach enables comprehensive coverage across multiple panels while maintaining consistent, relatively simple circuit designs throughout the system.
Data Source
AI summary
An image display device includes multiple display panels, a power supply unit, an image data input unit, a predicted current amount calculator, an actual current amount measurement unit, a current comparison unit, and an abnormality determiner. Each display panel includes multiple light-emitting elements. The power supply unit supplies power to each display panel for displaying an image. The image data input unit inputs image data to each display panel for displaying an image. The predicted current amount calculator calculates a predicted current amount in each display panel based on image data input to each display panel. The actual current amount measurement unit measures an actual current amount in each display panel. The current comparison unit compares the predicted current amount with the actual current amount in each display panel. The abnormality determiner determines whether there is an abnormality in each display panel based on a result of comparison.