Array Substrate Repairing Line for Broken Data Lines
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Solution Overview
Problem
Large size display panels face issues with slow repairing speed and limited repair capacity due to broken data lines, often requiring peripheral circuits that can only handle a few broken lines, leading to incomplete charging and reduced display quality.
Innovation Solution
Incorporating a repairing line in each column of pixel units, isolated from the data lines, which can connect broken data lines to adjacent data lines for faster and more efficient repair, allowing for simultaneous charging of multiple pixel units without darkening pixels.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of repair
If peripheral circuits are used to repair broken data lines, then repair capability is provided, but repair speed is slow and repair capacity is limited
Solution Approach 1:
The invention divides the display panel into multiple columns, each equipped with its own independent repairing line. This segmentation allows parallel repair operations across different columns, significantly increasing repair speed and capacity compared to using limited peripheral circuits for the entire panel.
Solution Approach 2:
The invention transitions from centralized peripheral circuit repair to distributed in-panel repairing lines, adding a spatial dimension to the repair architecture. By placing repairing lines within the display region rather than relying on external circuits, the system achieves faster and more scalable repair capability.
2Ease of repair
If peripheral circuits are used to repair broken data lines, then repair capability is provided, but repair capacity is limited to a few lines
Solution Approach 1:
The display panel is divided into multiple columns with independent repairing lines for each column. This segmentation enables the system to handle multiple broken data lines simultaneously across different columns, greatly expanding repair capacity beyond the limitation of a few peripheral circuits.
Solution Approach 2:
Each repairing line is designed to be universally applicable to its corresponding column, capable of repairing any broken data line within that column. This multi-functional design allows the system to adapt to various failure scenarios across the entire panel, significantly increasing overall repair capacity.
3Ease of repair
If repairing is performed using peripheral circuits, then broken data lines can be repaired, but pixel darkening occurs during repair
Solution Approach 1:
The invention extracts the repair function from the peripheral circuits and relocates it to dedicated repairing lines within the display region. This separation allows repair operations to be performed independently in specific columns without affecting the display state of other regions, eliminating the need to darken pixels during repair.
Solution Approach 2:
The repairing lines act as intermediary structures between the broken data lines and the functional display pixels. By introducing these intermediate repair pathways, the system can restore data line connectivity without disrupting the normal operation and illumination of the display pixels.
Data Source
AI summary
An array substrate and manufacturing thereof are provided. The array substrate comprises gate lines, first data lines, second data lines and N×M pixel units defined by the gate lines intersecting with the first data lines and the second data lines. A repairing line for each column of the pixel units is provided for a region at which at least one row of pixel units are located. Projections of two ends of the repairing line on the substrate respectively overlap with regions at which the first data line and the second data line of the same column of pixel units are located, and the repairing line is isolated from the first data line and the second data line.