Flexible Display Crack Detection Lines
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Solution Overview
Problem
Flexible display panels are prone to cracking when bent, which can lead to moisture penetration and wire breakage, resulting in defects and reduced reliability.
Innovation Solution
Incorporating crack detection lines in the display panel, particularly in bending areas, connected to a crack detecting circuit, to detect cracks and prevent defects by identifying stress points and potential failures.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the display panel is made flexible to enable bending, then adaptability and ease of operation are improved, but reliability deteriorates due to cracking and wire breakage
Solution Approach 1:
The patent applies preliminary action by incorporating crack detection lines and a detection circuit before the display panel is put into use. The system proactively monitors for cracks in real-time, allowing early detection of stress-related damage before it leads to wire breakage or functional failure. This preventive monitoring approach resolves the contradiction by maintaining flexibility while compensating for reduced crack resistance through early warning capabilities.
2Reliability
If crack detection lines are added to the display panel, then reliability is improved through early crack detection, but device complexity increases
Solution Approach 1:
The patent merges the crack detection functionality with existing display panel structures. The crack detection lines are integrated into the display area, and the detection circuit is combined with the existing pixel structure and control circuitry. This merging approach reduces the overall device complexity by sharing common components and structures between the display function and the crack detection function, while still achieving improved reliability through early defect detection.
Data Source
AI summary
A display device including a display panel that includes a display area including pixels and a non-display area around the display area. The display area may include a flat display area and at least one bending display area, and the display panel includes at least one crack detection line disposed in the at least one bending display area.