External Crack Detection Circuit for Flexible Display Panels
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Solution Overview
Problem
Flexible display panels are prone to cracks during manufacturing, which can worsen over time due to environmental factors, affecting display quality, and existing crack detection methods occupy valuable space on the panel and can cause static electricity issues.
Innovation Solution
A crack detection system is implemented on a circuit board outside the display panel, using wire segments and connection lines to form a detection loop, allowing for crack detection without occupying panel space and reducing static electricity interference.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If crack detection circuits and detection lines are integrated on the display panel, then crack detection function is achieved, but panel space is occupied and static electricity issues arise
Solution Approach 1:
The patent extracts the crack detection circuit from the display panel and relocates it to an external circuit board. The detection lines remain on the panel but connect to external circuitry, separating the detection function from the display panel structure. This resolves the space occupation issue while maintaining detection capability.
Solution Approach 2:
The patent introduces external circuit boards as intermediary components that host the crack detection circuits. These circuit boards serve as mediators between the detection lines on the panel and the processing unit, eliminating the need for integrated circuits on the panel itself and reducing static electricity interference.
2Reliability
If crack detection circuits are integrated on the display panel, then crack detection function is achieved, but static electricity interference increases
Solution Approach 1:
By extracting the crack detection circuit from the display panel and placing it on external circuit boards, the patent removes the source of static electricity generation from proximity to the panel. This reduces static electricity interference while preserving the detection function.
3Reliability
If crack detection lines are placed in the peripheral area surrounding the display area, then crack detection coverage is improved, but design flexibility is reduced
Solution Approach 1:
The patent extracts the crack detection circuitry from the panel design and places it externally, allowing the detection lines to be configured optimally in the peripheral area without constraining the overall panel design. This maintains detection coverage while improving design flexibility.
Data Source
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AI summary
The present disclosure provides a display device and a method for manufacturing the same, and an electronic apparatus. The display device includes: a display panel including a display area and a peripheral area surrounding the display area; a crack detection line in the peripheral area and surrounding the display area, the crack detection line includes a first wire segment and a second wire segment; and a circuit board on a side of the display panel and at least partially overlaps the display panel, the circuit board includes a plurality of connection lines and an integrated circuit, the plurality of connection lines includes at least one first connection line, at least one second connection line, and at least one third connection line; the at least one first connection line electrically connects the first wire segment and the second wire segment, the at least one second connection line electrically connects the first wire segment and the integrated circuit, and the at least one third connection line electrically connects the second wire segment and the integrated circuit.