Display Panel Lead-Out Layout for Narrow-Bezel Signal Routing
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Solution Overview
Problem
Existing display panels have wide bezels, which can be visually unappealing and limit the overall display area.
Innovation Solution
The display panel design includes a first and second signal line arrangement region in the form of narrow strips with non-overlapping borders, featuring lead-out lines that are electrically connected to signal lines in a one-to-one correspondence, with specific width constraints and alternating lead-out positions to optimize space utilization.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If signal line arrangement regions are designed with adequate width to accommodate all signal lines, then signal line layout reliability is improved, but bezel width increases
Solution Approach 1:
The signal line arrangement region is divided into multiple narrow strips arranged in a fishbone pattern, with each strip containing a subset of signal lines. This segmentation allows the total signal line capacity to be maintained while reducing the width of each individual arrangement region, thereby minimizing bezel width while preserving signal line layout reliability.
Solution Approach 2:
Instead of arranging all signal lines in a single wide region, the patent distributes signal lines across multiple narrow strips in different spatial dimensions. The lead-out lines extend in alternating directions from different sides of the display area, transforming a one-dimensional width problem into a multi-dimensional spatial distribution solution, thus reducing bezel width while maintaining signal line capacity.
2Device complexity
If lead-out lines are concentrated in a single location, then connection simplicity is improved, but signal line interference increases
Solution Approach 1:
Lead-out lines are divided into multiple groups, with each group containing a subset of lead-out lines. These groups are spatially separated and extend from different sides of the display area in alternating directions. This segmentation reduces the density of lead-out lines at any single location, minimizing electromagnetic interference while maintaining manageable connection complexity through organized grouping.
Solution Approach 2:
Lead-out lines are distributed across multiple dimensions by extending from different sides of the display area in alternating directions. This spatial distribution separates potentially interfering signal paths while maintaining systematic organization, thus reducing interference without significantly increasing connection complexity.
3Length of stationary object
If signal line arrangement region width is reduced to minimize bezel, then bezel width is reduced, but signal line routing flexibility decreases
Solution Approach 1:
The signal line arrangement is segmented into multiple narrow strips, each with dedicated signal lines. This segmentation provides structured flexibility where each strip can be independently optimized for its specific signal lines, allowing adaptive routing within narrow constraints while maintaining overall routing flexibility through the distributed architecture.
Solution Approach 2:
The patent employs a dynamic fishbone pattern where lead-out lines extend in alternating directions from different sides of the display area. This dynamic arrangement allows the signal line routing to adapt to different spatial constraints and signal line requirements, providing routing flexibility within the narrow bezel configuration rather than using a static fixed pattern.
Data Source
AI summary
A display panel includes a display area and a peripheral area. The peripheral area includes a first signal line arrangement region including first signal lines and a second signal line arrangement region including second signal lines. First lead-out lines are led out from the first lead-out positions included in a border of the first signal line arrangement region and a are connected to the first signal lines. A first lead-out line is connected to a data line. A first reference signal line is led out from a first reference lead-out position and connected to a first reference data line. Second lead-out lines are led out from second lead-out positions included in a border of the second signal line arrangement region, and are electrically connected to the second signal lines; a second lead-out line is electrically connected to a gate line.