Display Panel Side Wiring With Bridged Terminal Connection
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Solution Overview
Problem
The existing side metal wiring techniques for double-sided manufacturing of display panels, such as pad printing of silver paste, result in poor electrical connections between conductive lines on the side surface and connection terminals, leading to low production yields.
Innovation Solution
A display panel design featuring conductive lines on the side surface with connecting members, such as solder paste, that are strategically positioned between the conductive lines and terminals on opposite surfaces to ensure electrical connectivity, improving the connection quality and yield.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If pad printing of silver paste is used for side metal wiring, then the manufacturing process can be implemented, but the electrical connection between conductive lines and terminals is poor
Solution Approach 1:
The patent introduces a connecting member as an intermediary element between the conductive line and the terminal. This connecting member includes a first electrode connected to the conductive line, a second electrode connected to the terminal, and a bridge portion connecting the two electrodes. The bridge portion extends from the side surface toward the first surface, creating a reliable electrical connection path that overcomes the poor connection issues of direct pad printing methods.
2Reliability
If conductive lines are disposed close to terminals on the side surface, then connection quality improves, but manufacturing precision requirements increase
Solution Approach 1:
The patent transitions from a two-dimensional planar connection to a three-dimensional spatial connection by extending the bridge portion of the connecting member from the side surface toward the first surface. This vertical extension allows the conductive line to be connected to the terminal through a different spatial dimension, reducing the horizontal positioning precision requirements while maintaining connection reliability.
3Productivity
If traditional side metal wiring is used, then production yield is limited, but implementing new connecting structures increases device complexity
Solution Approach 1:
The patent combines multiple functions into the connecting member structure. The connecting member simultaneously serves as an electrical connector, a mechanical support, and a spatial bridge between different layers. By merging these functions into a single integrated component, the overall device complexity is minimized while achieving improved production yield through better connection 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 solution enhances the electrical connection between conductive lines and terminals, thereby improving the production yields and display performance by allowing for a more flexible arrangement and reducing overall resistance in the circuit structure.
Implementation Method 1
the first connecting members are connected between the conductive lines and the first terminals, so that the conductive lines are electrically connected to the first terminals
Data Source
AI summary
The present application provides a display panel, a display device, and a manufacturing method of the display panel. The display panel includes a substrate, a first terminal, a conductive line, and a first connecting member. The first terminal is arranged on a first surface of the substrate. The conductive line is at least partially arranged on a side surface of the substrate and is spaced apart from the first terminal. The first connecting member is connected between the conductive line and the first terminal to make the conductive line electrically connected to the first terminal, and therefore improve electrical connection between the conductive line and the first terminal.