Electrical Connection Assembly With Dedicated Test Electrodes
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Solution Overview
Problem
Conventional methods for verifying electrical connections between flexible printed circuit boards and touch panels are inconvenient and prone to significant deviations due to reliance on microscopic observation of conductive particle contact.
Innovation Solution
Incorporating test electrodes on both circuit boards to form a testing loop, allowing for the detection of electrical connectivity through short or open circuit detection, thereby improving connection reliability and convenience in determining electrical connection status.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If microscopic observation is used to check electrical connection, then connection status can be verified, but the operation is inconvenient and results in massive deviations
Solution Approach 1:
The patent introduces test electrodes as an intermediary element between the signal electrodes and the detection system. These test electrodes form a dedicated testing loop that mediates the connection verification process, allowing electrical continuity to be checked through simple conductivity measurement rather than direct microscopic observation of the ACF connection interface.
Solution Approach 2:
The patent replaces the mechanical/optical inspection method (microscope observation) with an electrical measurement method (conductivity detection). Instead of visually checking whether conductive particles contact electrodes under a microscope, the system uses electrical continuity measurement through the testing loop to determine connection status, significantly improving both convenience and accuracy.
2Reliability
If microscopic observation is used to determine electrode contact, then connection status can be assessed, but operation is not convenient and causes massive deviations
Solution Approach 1:
The test electrodes serve as an intermediary testing pathway that simplifies the verification process. Rather than directly observing the complex ACF-conductive particle-electrode interface under a microscope, the testing loop provides a straightforward electrical path for continuity measurement, improving reliability while reducing operational complexity.
Solution Approach 2:
The patent extracts the testing function from the main signal pathway by introducing separate test electrodes dedicated solely to connection verification. This separation allows the testing loop to be independently measured without interfering with the signal electrodes' functionality, simplifying the overall testing process while maintaining connection reliability.
3Ease of manufacture
If conventional ACF connection method is used, then electrical connection between boards is formed, but verification of connection status is difficult and error-prone
Solution Approach 1:
The patent segments the electrode system into two distinct functional groups: signal electrodes for normal operation and test electrodes for verification. This segmentation allows the connection formation process to remain simple using conventional ACF methods, while the separate test electrodes provide an dedicated, easy-to-measure pathway for detecting connection status without complicating the manufacturing process.
Solution Approach 2:
The test electrodes act as an intermediary measurement interface that simplifies connection detection. Instead of directly measuring the complex ACF connection between signal electrodes, the testing loop provides an intermediate electrical path that is easier to measure and less prone to measurement errors, while the connection formation process itself remains unchanged.
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
Enhances the reliability of electrical connections and simplifies the verification process by using a detecting circuit to assess the testing loop, reducing the likelihood of errors and improving connection consistency.
Implementation Method 1
the electrical connection between the electrodes 101 and 201 on the two boards is formed by conductive particles 301 existed in the anisotropic conductive film 300
Data Source
AI summary
An electrical connection assembly is disclosed. The electrical connection assembly includes a first circuit board and a second circuit board. The first circuit board has a plurality of first signal electrodes and at least one first test electrode, wherein the first signal electrodes and the first test electrode are arranged in a spaced manner on the same side of the first circuit board. The second circuit board has a plurality of second signal electrodes and at least one second test electrode, wherein the second signal electrodes and the second test electrode are arranged in a spaced manner on the same side of the second circuit board, wherein the first signal electrodes are electrically connected to the second signal electrodes and the first test electrode is electrically connected to the second test electrode to form a testing loop.