Elastic Probe Needle for LCD Testing
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Solution Overview
Problem
The current methods for testing liquid crystal displays are cumbersome and prone to errors due to the need for complex preparation of solder wires and connections, leading to issues like open circuits and incorrect data during testing.
Innovation Solution
A testing probe with an elastic extensible element and a probe needle, where the probe needle is disposed on the base through the elastic element, allowing it to contact the base under tension, simplifying the connection process by eliminating the need for solder wires and ensuring reliable contact with silver adhesive on the liquid crystal screen.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional connection methods (solder wire, adhesive tape, testing clip) are used to connect detecting signal lines to the liquid crystal screen, then the connection can be established, but the preparation process becomes very cumbersome and time-consuming
Solution Approach 1:
The invention extracts and eliminates the complex intermediate connection components (solder wire, adhesive tape, testing clip) from the connection process. The probe needle directly contacts the silver adhesive on the liquid crystal screen, removing unnecessary connection elements and simplifying the overall connection structure while maintaining reliability.
Solution Approach 2:
Instead of using multiple intermediate components to establish connection (traditional approach), the invention inverts the approach by using a single integrated probe needle that directly contacts the silver adhesive. This reversal of the connection methodology eliminates the cumbersome preparation steps while ensuring reliable electrical connection.
2Reliability
If traditional connection methods with multiple steps are used, then connection can be established, but the testing preparation time is significantly increased
Solution Approach 1:
The silver adhesive is pre-coated on the liquid crystal screen at the testing area before the actual testing process. This preliminary action eliminates the need for on-site soldering and wire preparation, allowing the probe needle to make direct contact during testing, thereby significantly reducing preparation time while maintaining connection stability.
Solution Approach 2:
The invention skips the time-consuming intermediate steps of making solder wire, applying adhesive tape, and connecting testing clips. By using a probe needle that directly contacts the pre-coated silver adhesive, the connection is established rapidly, rushing through the preparation process and minimizing testing preparation time.
3Reliability
If multiple intermediate connection components are used, then connection can be made, but the risk of open circuit and short circuit increases
Solution Approach 1:
The invention extracts and removes the intermediate connection components (solder wire, adhesive tape, testing clip) that introduce potential failure points. By using a probe needle that directly contacts the silver adhesive, the connection path is simplified to a single direct contact, eliminating the risk of open circuits and short circuits that could occur at multiple connection interfaces.
Solution Approach 2:
Instead of using multiple intermediate components to establish connection (traditional approach), the invention inverts the approach by using a single integrated probe needle that directly contacts the silver adhesive. This reversal eliminates the multiple connection interfaces where open circuits and short circuits could occur, thereby improving connection integrity.
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 significantly simplifies the preparation before testing, reduces the risk of errors, and enhances testing efficiency by ensuring a reliable connection with the liquid crystal screen, thereby shortening testing time.
Implementation Method 1
an elastic extensible element, the probe needle being disposed on the base through the elastic extensible element, and the elastic extensible element being in a stretched state
Implementation Method 2
the probe needle contacts the base under effect of tension of the elastic extensible element
Data Source
AI summary
A testing probe including a base, an elastic extensible element and a probe needle. The probe needle is disposed on the base through the elastic extensible element, and the elastic extensible element is in a stretched state. The testing probe requires only coating silver adhesive on the testing area of the liquid crystal screen previously, eliminating the need to make solder wire, fix solder wire, etc., thereby simplifying preparation before testing and ensuring reliable connections, which greatly reduces testing time and improves testing efficiency. A testing device including the above testing probe.