Flexible Display Crack Detection Circuit Layout Outside the Panel
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Solution Overview
Problem
Flexible display panels, such as AMOLEDs, are prone to cracks during manufacturing and environmental changes, which can lead to reduced quality and display effectiveness, necessitating timely crack detection to prevent further damage.
Innovation Solution
A display device with a crack detection system featuring a circuit board outside the display panel, using wire segments and connection lines to form a detection loop, allowing for crack detection without occupying valuable space on the panel and minimizing static electricity interference.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the crack detection line is placed on the display panel, then crack detection function is achieved, but it occupies valuable space on the panel and increases static electricity interference
Solution Approach 1:
The patent extracts the crack detection line from the display panel and relocates it to an independent circuit board. The detection line is separated from the display area, allowing the display panel to maintain its full display area without occupation by detection circuits. This extraction resolves the contradiction by achieving crack detection functionality while preserving display panel area.
Solution Approach 2:
The patent introduces a circuit board as an intermediary component between the display panel and the crack detection system. The circuit board serves as a mediator that hosts the detection line and connects it to the display panel through connection lines, thereby achieving crack detection without placing the detection line directly on the display panel area.
2Reliability
If the crack detection line is placed on the display panel, then crack detection function is achieved, but static electricity interference increases
Solution Approach 1:
By extracting the crack detection line from the display panel and placing it on a separate circuit board, the patent reduces static electricity interference. The separation isolates the detection line from the display panel's electrostatic environment, thereby maintaining detection reliability while minimizing harmful static electricity effects.
3Reliability
If connection lines are arranged on the circuit board, then electrical connection is achieved, but device complexity increases
Solution Approach 1:
The circuit board is designed to perform multiple functions: it hosts the crack detection line, provides electrical connection between the detection line and external circuits, and manages signal routing. This multi-functionality consolidates several roles into a single component, achieving reliable electrical connection while managing device complexity through functional integration.
4Reliability
If the detection line surrounds the display area, then comprehensive crack detection is achieved, but the structure becomes more complex
Solution Approach 1:
The patent transitions the detection line from a two-dimensional layout on the display panel to a three-dimensional arrangement on the circuit board. The detection line can be routed around the display area's perimeter on the circuit board, achieving comprehensive crack detection coverage while utilizing the additional spatial dimension of the circuit board to manage structural complexity.
Data Source
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; 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, 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 first connection line electrically connects the first wire segment and the second wire segment, the 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.