Panel Repairing Line Layout for Fast Signal Line Restoration
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Solution Overview
Problem
Conventional methods for repairing signal lines in electronic devices, such as scan, data, and power lines, are time-consuming and complex due to defects caused by particles or electrostatic discharge (ESD).
Innovation Solution
The electronic device incorporates multiple repairing lines disposed around the unit circuit, extending in different directions, which are electrically connected via contact vias, allowing for efficient laser-based repair through welding and cutting operations to restore signal transmission.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional repair methods are used for signal lines, then signal transmission can be restored, but the repair process is time-consuming and complex
Solution Approach 1:
The patent implements preliminary action by pre-configuring multiple repairing lines (first repairing lines extending in first direction, second repairing lines extending in second direction) that are ready before any defect occurs. These repairing lines are strategically disposed around the unit circuit and can be immediately activated through contact vias when a defect is detected, eliminating the need for complex post-defect repair design and significantly reducing repair time.
Solution Approach 2:
The patent changes the structural parameter of the repair system by introducing multiple repairing lines extending in different directions (first direction and second direction) rather than a single repair path. This multi-directional configuration allows flexible routing around defects and enables faster repair operations by providing multiple potential repair paths simultaneously available.
2Reliability
If conventional repair methods are used for signal lines, then signal transmission can be restored, but the repair design becomes very complex
Solution Approach 1:
The patent applies segmentation by dividing the repair function into multiple independent repairing lines (first repairing lines and second repairing lines) that can operate independently. Each repairing line is a separate, simple structure that can be individually connected to data lines and scan lines through contact vias, simplifying the overall repair design compared to a single complex repair mechanism.
Solution Approach 2:
The repairing lines serve multiple functions: they can repair data lines, scan lines, and power lines; they extend in multiple directions to accommodate defects at different locations; and they can be activated through the same contact via structure. This multi-functionality reduces repair design complexity by using a unified repair architecture for various signal line types.
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
The repair process reduces time and complexity, ensuring normal signal transmission by connecting damaged lines to redundant repairing lines, thus enhancing the convenience and efficiency of the repair process.
Implementation Method 1
allowing for efficient laser-based repair through welding and cutting operations to restore signal transmission
Implementation Method 2
efficient laser-based repair through welding and cutting operations
Data Source
AI summary
An electronic device includes a panel having a working area. The working area includes a unit circuit, at least two first repairing lines, at least one second repairing line, and data, scan, and emission lines. The unit circuit includes first, second and third switches. The first switch is electrically connected to the second and third switches and a power line. The first repairing lines are extend in the first direction. The second repairing line extends in a second direction. The data line is extends in the first direction and is electrically connected to an electrode of the third switch. The scan line extends in the second direction and is electrically connected to a gate of the third switch. The emission line extends in the second direction and is electrically connected to a gate of the second switch. The first direction is different from the second direction.