Display Panel Signal Routing for Narrow Border Layouts
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Solution Overview
Problem
The increasing resolution in display panels results in a larger border area due to the increased number of signal lines connecting to the non-display area, which is inefficient and hinders narrow border design.
Innovation Solution
The implementation of signal lines that extend through the display area and connect to signal connection lines in adjacent non-display areas, allowing for reduced border widths by optimizing the layout and wiring in the non-display areas.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If more signal lines are configured connecting to non-display area to improve resolution, then measurement precision is improved, but the border area width increases
Solution Approach 1:
The patent applies dimensionality change by routing signal connection lines through multiple layers and utilizing the Z-dimension (vertical stacking) to transfer signals from the first non-display area through the display area to the second non-display area. This allows signal lines to exit from opposite sides of the display area, effectively distributing the wiring burden across different spatial dimensions and reducing the border width requirement.
Solution Approach 2:
The patent segments the signal connection path into multiple independent connection lines distributed across different locations. Instead of concentrating all signal lines in a single border region, the connection lines are divided and routed through different non-display areas (first and second non-display areas), which distributes the wiring complexity and reduces the local border width requirement.
2Reliability
If signal lines are routed through larger border areas to connect display pixels, then reliability is improved, but the border width increases
Solution Approach 1:
The patent utilizes multi-layer routing and three-dimensional space utilization to create redundant signal paths. By routing connection lines through multiple layers and different spatial paths (through the display area from opposite sides), the system achieves improved signal connection reliability without requiring a larger border width, as the redundancy is achieved through spatial distribution rather than border expansion.
3Length of stationary object
If signal connection lines extend through the display area to opposite non-display areas, then border width is reduced, but device complexity increases
Solution Approach 1:
The patent segments the complex wiring task into multiple manageable connection lines, each routed through specific non-display areas. By dividing the signal connection function into multiple independent paths distributed across different locations and layers, the overall wiring complexity is managed through modular segmentation rather than a single complex routing scheme.
Solution Approach 2:
The patent utilizes the third dimension (vertical layering) to simplify the two-dimensional wiring layout problem. By routing connection lines through multiple layers and utilizing Z-dimension stacking, the patent transforms a complex planar routing problem into a more manageable three-dimensional routing solution, reducing the apparent complexity in any single plane.
Data Source
AI summary
Display panel and electronic device are provided. The display panel includes a display area and a non-display area at least partially surrounding the display area. The display panel includes: a plurality of signal lines, extending along a first direction and located in the display area, the display area including a first display area and a second display area disposed adjacent to the first display area along a second direction, the display area including a first side extending along the first direction, and the first display area located between the first side and the second display area; first signal connection lines, extending through the display area along a first non-display area on a side of the display area to a second non-display area on the other side of the display area, the first non-display area including a bonding area; and second signal connection lines, extending along the second non-display area.