Slim Border Display Lead Line Structure Design
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing fan-out type lead line structures in slim border display panels face challenges in reducing dimensions without increasing resistance or causing short circuits, as narrowing lead lines can lead to increased resistance or short circuiting.
Innovation Solution
A lead line structure with alternating first and second lead lines, where the first lead lines have a straight and oblique portion, and the second lead lines have a straight, oblique portion, and a contact window, with specific spacings to avoid short circuits and reduce dimensions effectively.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of moving object
If the width of the lead lines is reduced to reduce dimensions, then the area is reduced, but the resistance increases
Solution Approach 1:
The patent transitions from a planar two-dimensional lead line layout to a three-dimensional structure by stacking multiple lead line layers (first lead line layer, second lead line layer) vertically. This dimensional change allows the lead lines to occupy different spatial planes, reducing the required horizontal area while maintaining adequate spacing between adjacent lead lines to prevent short circuits and control resistance.
Solution Approach 2:
The patent divides the lead line structure into multiple discrete layers (first lead line layer, second lead line layer) with insulating layers between them. Each layer contains specific lead lines (first lead lines, second lead lines) that are spatially separated, allowing independent optimization of each layer's layout while maintaining overall electrical connectivity through vertical connections.
2Area of moving object
If the space between the lead lines is reduced to reduce dimensions, then the area is reduced, but short circuiting occurs between adjacent lead lines
Solution Approach 1:
The patent utilizes vertical stacking of lead line layers to create three-dimensional spatial separation. Lead lines in different layers (e.g., first lead lines in the first layer, second lead lines in the second layer) are separated by insulating layers, allowing reduced horizontal spacing while maintaining electrical isolation and preventing short circuits through vertical dimensionality.
Solution Approach 2:
The patent introduces insulating layers as intermediary structures between the first lead line layer and the second lead line layer. These insulating layers act as mediators that provide electrical isolation between adjacent lead lines in different layers, enabling closer spacing without risking short circuits while maintaining reliable electrical connectivity within each layer.
3Area of moving object
If the lead line structure is made more compact to reduce dimensions, then the area is reduced, but manufacturing precision requirements increase
Solution Approach 1:
The patent segments the lead line structure into multiple discrete layers with distinct functions and layouts. Each layer can be manufactured and aligned independently with standardized connection points, distributing the precision requirements across multiple fabrication steps rather than requiring extreme precision in a single compact two-dimensional layout.
Solution Approach 2:
By transitioning to a multi-layer vertical structure, the patent distributes lead lines across different height levels (Z-dimension) rather than compressing them into a single plane. This allows each layer to be manufactured with standard precision requirements while achieving overall compactness through vertical stacking, reducing the cumulative precision demands compared to a highly compressed two-dimensional arrangement.
Data Source
AI summary
A lead line structure and a display panel having the same are provided. The lead line structure includes first and second lead lines. Each of the first lead lines has a first straight portion and a first oblique portion connected with the first straight portion. The second lead lines and the first lead lines are alternatively arranged, and each of the second lead lines has a second straight portion, a second oblique portion and a contact window. The contact window contacts with the second straight portion so as to electrically connect the second straight portion and the second oblique portion. The first straight portions of the first lead lines and the second straight portions of the second lead lines extend towards the driving device and are electrically connected to the driving device.