Display Panel Asymmetric Cross-Line Layout for Through-Hole Edge Area Reduction
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Solution Overview
Problem
The increased wiring density at the edge of through-holes in display panels with dual cameras leads to a larger edge area, negatively impacting the screen-to-body ratio of display panels.
Innovation Solution
The display panel design includes a non-display area with two through-holes arranged along a direction, where the number of cross-lines in the first non-display area is greater than in the second non-display area, allowing more cross-lines to be placed between through-holes rather than at their edges, reducing the wiring area at the edges and optimizing space utilization.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If wirings extend along the edge of through-hole area to connect pixel structures, then the connectivity between display area and functional modules is ensured, but the edge area of through-holes increases and screen-to-body ratio deteriorates
Solution Approach 1:
The patent applies asymmetry by distributing cross-lines unevenly between the first and second non-display areas. Specifically, more cross-lines are arranged in the first non-display area than in the second non-display area, creating an asymmetric wiring layout that reduces the total edge area occupied by wirings while maintaining necessary connectivity between display pixels and functional modules through the through-holes.
Solution Approach 2:
The patent transitions from a conventional symmetric wiring arrangement to an asymmetric distribution across different spatial zones (first and second non-display areas). By treating the non-display area as two distinct dimensions or zones with different wiring densities, the solution optimizes space utilization and reduces the overall edge area footprint while preserving electrical connectivity.
2Area of stationary object
If more cross-lines are placed between through-holes rather than at edges, then space utilization is optimized and screen-to-body ratio improves, but wiring complexity in non-display area increases
Solution Approach 1:
The patent applies local quality by assigning different wiring densities to different regions of the non-display area. The first non-display area contains a higher density of cross-lines compared to the second non-display area, allowing the wiring layout to be optimized locally in each zone rather than applying a uniform distribution pattern throughout the entire non-display region.
Solution Approach 2:
The patent segments the non-display area into two distinct regions (first and second non-display areas) with different wiring arrangements. This segmentation allows independent optimization of each zone, placing more cross-lines in the first non-display area where space permits, while reducing wiring density in the second non-display area, thereby managing overall wiring complexity through regional differentiation.
Data Source
AI summary
Display panels and display devices are provided. The display panel includes a functional module area and a plurality of first signal wirings arranged along a first direction. The display panel includes a first area and a second area, and along the first direction, the functional module area is disposed between the first area and the second area. The plurality of first signal wirings include a plurality of first cross-lines and a plurality of first sub-signal wirings along a second direction, the plurality of first sub-signal wirings are disposed in a display area, the plurality of first cross-lines are connected to the plurality of first sub-signal wirings, and the second direction intersects the first direction. The first area includes M first cross-lines of the plurality of first cross-lines, the second area includes N first cross-lines of the plurality of first cross-lines, and M is greater than N.