Array Substrate Signal Connection Lines with Parallel Resistance Adjustment
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Solution Overview
Problem
In display technology, the limited space between signal sources and signal lines on array substrates necessitates additional bending portions in signal connection lines to balance resistance, which can lead to short-circuits or poor connections, adversely affecting display quality and making it difficult to manufacture narrow-bezel display devices.
Innovation Solution
The implementation of signal connection lines with main line portions and resistance adjustment portions connected in parallel, allowing for adjustable resistance without increasing the number of bending portions, thereby reducing the space required and preventing short-circuits.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If more bending portions are arranged in the signal connection line to balance resistance, then the resistance is reduced, but the space required for layout increases
Solution Approach 1:
The signal connection line is divided into a main line portion and a resistance adjustment portion connected in parallel. The resistance adjustment portion is further segmented into multiple bending portions (first, second, third bending portions) that can be independently configured. This segmentation allows the resistance to be adjusted without requiring the entire signal connection line to have excessive bending portions, thus reducing the overall layout space while maintaining signal transmission quality.
Solution Approach 2:
The resistance adjustment portion is arranged in a direction different from the main line portion, utilizing spatial dimensionality to optimize layout. By arranging bending portions in different directions and configurations (some extending in the same direction as the main line, others in different directions), the patent achieves effective resistance adjustment within a more compact two-dimensional space, reducing the overall area required for the signal connection line layout.
2Reliability
If more bending portions are arranged in the signal connection line to balance resistance, then the resistance is reduced, but the risk of short-circuit or deficient connection increases
Solution Approach 1:
By segmenting the resistance adjustment into separate bending portions connected in parallel, the patent reduces the need for excessive bending portions in series within the main signal path. This segmentation distributes the resistance adjustment function across multiple parallel paths, reducing the risk of short-circuits or deficient connections in any single bending portion while maintaining overall signal transmission quality.
Solution Approach 2:
The resistance adjustment portion acts as an intermediary structure between the main line portion and the signal lines. It provides a controlled path for current distribution, mediating the resistance adjustment function while isolating the main signal path from the potential harmful effects of excessive bending portions. This intermediary structure reduces short-circuit risk by providing alternative current paths through the parallel-connected bending portions.
3Reliability
If more bending portions are arranged in the signal connection line to balance resistance, then the resistance is reduced, but the device complexity increases
Solution Approach 1:
The patent segments the resistance adjustment function into a dedicated resistance adjustment portion with multiple bending portions, separate from the main line portion. This segmentation allows for standardized design and manufacturing of the resistance adjustment module, reducing overall device complexity despite the increased number of bending portions. The modular structure makes the complex resistance adjustment function more manageable and easier to manufacture.
Solution Approach 2:
The resistance adjustment portion with its multiple bending portions serves multiple functions: it adjusts resistance, provides alternative current paths to prevent short-circuits, and can be configured in different directions to adapt to various layout requirements. This multi-functionality reduces the need for separate structures for each function, thereby reducing overall device complexity despite the increased number of bending portions.
Data Source
AI summary
An array substrate includes a display region and a non-display region arranged adjacent to the display region. A plurality of signal connection lines is arranged at the non-display region, and each signal connection line is configured to connect a signal source and a signal line at the display region. At least one signal connection line includes a main line portion and at least one resistance adjustment portion connected in parallel to the main line portion.