LCD Panel Conductive Wires with High-Resistivity Dissipation
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Solution Overview
Problem
LCD panels face challenges with static electricity discharge during manufacturing, leading to potential damage due to the accumulation of electrostatic charge at conductive wire connections, which complicates the manufacturing process and increases costs.
Innovation Solution
The design incorporates first and second conductive wires on a substrate with specific connecting and conductive portions, where the conductive portions have a higher resistivity than the connecting portions, allowing electrostatic charge to be dissipated as heat without passing through to the connecting portions, thereby preventing discharge.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a dummy line and insulating layer are added to provide electrostatic protection, then static electricity discharge is prevented, but device complexity and manufacturing cost increase
Solution Approach 1:
The patent merges the electrostatic protection function into the existing conductive wire structure by creating multi-layer conductive wires with different resistivity levels. The first conductive wire layer serves both as the primary conductive path and as the electrostatic discharge path, eliminating the need for separate dummy lines and insulating layers. This integration achieves electrostatic protection while reducing structural complexity.
Solution Approach 2:
The patent applies local quality by creating regions with different resistivity within the conductive wire structure. The first conductive wire layer has lower resistivity for normal signal transmission, while the second conductive wire layer has higher resistivity for electrostatic discharge. This localized differentiation of material properties allows the same structure to perform multiple functions without adding external protection components.
2Ease of operation
If multiple conductive wires with connecting portions are used, then electrical connection is achieved, but static electricity accumulates at connections increasing discharge risk
Solution Approach 1:
The patent introduces an intermediary structure - the multi-layer conductive wire with differentiated resistivity - that mediates between the conductive wire and the electrostatic charge. The second conductive wire layer with higher resistivity acts as an intermediary path that safely dissipates electrostatic charge without interfering with the normal electrical signal transmission through the first conductive wire layer.
Solution Approach 2:
The patent changes the electrical parameter (resistivity) of the conductive wire structure to prevent static electricity accumulation. By creating a two-layer structure with different resistivity values, the patent modifies the electrical characteristics to allow electrostatic charge dissipation while maintaining normal conductive functionality, thereby eliminating the harmful accumulation effect at connections.
3Reliability
If traditional electrostatic protection structures are added, then discharge protection is provided, but manufacturing complexity and cost increase
Solution Approach 1:
The patent combines the electrostatic protection function with the existing conductive wire manufacturing process. By forming multi-layer conductive wires with different resistivity during the same fabrication steps, the patent eliminates the need for separate dummy line and insulating layer additions, thereby simplifying manufacturing while providing discharge protection.
Solution Approach 2:
The patent creates a universal conductive wire structure that performs multiple functions: normal electrical signal transmission through the first layer and electrostatic charge dissipation through the second layer. This multi-functionality eliminates the need for separate protection structures, reducing manufacturing complexity and cost while maintaining reliability.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This configuration effectively eliminates static electricity buildup in the first conductive wires and prevents electrostatic discharge to the second conductive wires, simplifying the manufacturing process and reducing costs by eliminating the need for additional electrostatic protection.
Implementation Method 1
the conductive portions have a higher resistivity than the connecting portions, allowing electrostatic charge to be dissipated as heat without passing through to the connecting portions
Data Source
AI summary
An exemplary liquid crystal display panel includes a substrate and first conductive wires. The first conductive wires are arranged at a surface of the substrate. Each of the first conductive wires includes a plurality of first connecting portions, a plurality of second connecting portions and a conductive portion with a plurality of conductive particles. The conductive portion is sandwiched between the first connecting portions and the second connecting portions, thus electrically connecting the first connecting portions to the second connecting portions. A method for manufacturing the liquid crystal display panel is also provided.