Display Panel Crack Detection Line for Irregular Shape Cutting
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Display panels with non-regular shapes are prone to cracks during cutting, affecting the display effect and product yield due to the high risk of physical extrusion and collision during laser cutting.
Innovation Solution
Incorporating a crack detection line on the peripheral region of the display panel that surrounds the display region, connected to data lines, allowing for accurate detection of cracks by monitoring signal transmission disruptions, and a crack blocking structure to mitigate stress during cutting.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If high-power density laser is used for non-regular shape cutting, then cutting efficiency is improved, but cracks occur in the display panel
Solution Approach 1:
The crack detection line is pre-configured along the cutting path before the actual cutting operation. This allows the system to detect potential crack formation in advance by monitoring resistance changes, enabling preventive measures to be taken before actual damage occurs to the display panel
Solution Approach 2:
The system continuously monitors the resistance of the crack detection line during the laser cutting process. When resistance changes indicate crack formation, the system provides feedback to stop or adjust the cutting process, preventing further damage while maintaining cutting efficiency
2Measurement precision
If crack detection line is added to the display panel, then crack detection precision is improved, but device complexity increases
Solution Approach 1:
The crack detection line is integrated with the existing peripheral circuit structures of the display panel, merging the detection function with the panel's existing architecture. This reduces the additional complexity by utilizing existing structural elements rather than adding completely separate detection components
Solution Approach 2:
The peripheral circuit structures serve dual purposes: their original function plus crack detection function. The detection line integrates with existing data lines and peripheral circuits, making these structures multi-functional and reducing the need for separate dedicated detection components
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enables precise detection of cracks, ensuring high product yield by identifying damaged panels and preventing further damage during non-regular shape cutting.
Implementation Method 1
the crack detection line is electrically connected to at least one of the multiple data lines... whether there is a crack occurring is determined according to whether a sub-pixel electrically connected to the crack detection line is lit up
Data Source
AI summary
A display panel and a display apparatus are provided, the display panel includes a substrate, a plurality of sub-pixels, a plurality of data lines, and a crack detection line. A first peripheral area surrounds a display area; the plurality of data lines are connected to the plurality of sub-pixels; and the crack detection line surrounds the display area, is arranged along the edge of the first peripheral area and a second peripheral region, and is connected to at least one of the plurality of data lines.