Display Panel Test Device Automatic Alignment Mark Search
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Solution Overview
Problem
Conventional display panel testing processes require repeated operations when a mark is not found, leading to lower efficiency in manufacturing due to the need for manual monitoring and re-loading of panels.
Innovation Solution
A display panel test method and device that automatically searches for and adjusts alignment marks, issuing warnings and allowing for manual intervention when necessary, to streamline the testing process and reduce manual workload.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If manual monitoring is used to find alignment marks during display panel testing, then the testing process can be completed, but the manufacturing efficiency is reduced due to repeated operations and manual intervention
Solution Approach 1:
The system automatically searches for alignment marks using the obtained position information without requiring manual monitoring. The test device independently completes the mark-finding process, eliminating the need for operator intervention and preventing repeated operations, thereby improving manufacturing efficiency
Solution Approach 2:
The patent replaces manual mechanical search operations with an automated electronic search system. The test device uses electronic coordinates and automated search algorithms to locate alignment marks, substituting human operators and manual mechanical processes with an automated electronic system
2Reliability
If the alignment mark is not found and the panel is removed and reloaded, then the testing can be restarted, but the manufacturing efficiency is reduced due to repeated operations
Solution Approach 1:
The system obtains position information of the display panel in advance before the alignment mark search begins. By having the coordinates and position data ready beforehand, the automated search can immediately proceed without manual intervention or panel removal, preventing time loss from repeated operations
Solution Approach 2:
The system provides feedback mechanisms including warnings when alignment marks are not found and options to retry or proceed. This feedback loop allows the system to learn from failed searches and adjust accordingly, improving the alignment success rate while minimizing repeated operations through intelligent decision-making
3Productivity
If automated searching is implemented using position information, then the efficiency is improved, but the system complexity increases
Solution Approach 1:
The test device is designed to perform multiple functions: obtaining position information, automatically searching for alignment marks, providing feedback warnings, and enabling both automated and manual search modes. This multi-functional design consolidates what could be separate complex systems into a single integrated device, managing complexity while maintaining high efficiency
Solution Approach 2:
The system changes operational parameters dynamically based on the situation. It can switch between automated search mode and manual search mode, adjust search strategies based on position information quality, and modify warning thresholds. This parameter flexibility allows the system to maintain simplicity in normal operation while handling complex edge cases
Data Source
AI summary
The present application provides a display panel test method and a display panel test device. The display panel test method automatically searches for an alignment mark of a display panel. After the alignment mark is automatically found, a position of the alignment mark can be adjusted automatically. The alignment mark of the display panel can also be adjusted manually when the position of the alignment mark of the display panel cannot be automatically adjusted. Therefore, there is no need to conduct monitoring by manpower. After the alignment mark is found, there is no need to remove the display panel.