Display Panel EMI Noise Testing with Multi-Antenna Ground Plate
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Solution Overview
Problem
Conventional noise test apparatuses cannot effectively test electromagnetic interference (EMI) noise of display panels before they are assembled into end products, leading to delayed defect detection and reduced testing efficiency due to their inability to correspond with the inner antenna structures of end products.
Innovation Solution
A noise test apparatus comprising multiple antennas positioned on a base plate with an insulating ground plate to receive electromagnetic waves from display panels, allowing for the analysis of EMI noise along various directions, enabling early defect detection during the manufacturing process.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of time
If conventional testing jigs are used to test EMI noise, then EMI noise of end products can be tested, but defect detection is delayed until after assembly and testing efficiency decreases
Solution Approach 1:
The patent applies preliminary action by enabling EMI noise testing of display panels before they are assembled into end products. The testing jig is designed to test the display panel independently, allowing defects to be detected early in the manufacturing process rather than after assembly, thus preventing rework and improving overall productivity
2Adaptability or versatility
If conventional testing jig structure is used, then testing can be performed, but the structure does not correspond to inner antenna structure of end products reducing testing efficiency
Solution Approach 1:
The patent applies local quality by designing the testing jig with a ground plate structure that corresponds to the inner antenna structure of end products. The ground plate is positioned and dimensioned to match the specific geometry and location of antennas within the display panel, creating a localized testing environment that accurately replicates real-world conditions and improves testing efficiency
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
Enables efficient testing of EMI noise of display panels before assembly, allowing for early defect recognition and improved manufacturing efficiency by aligning with the inner antenna structures of end products.
Implementation Method 1
The first antenna is configured to receive electromagnetic waves irradiated by the display panel, and the second antenna is configured to receive electromagnetic waves irradiated by the display panel
Data Source
AI summary
A noise test apparatus includes a ground plate, a base plate including a ground plate, the ground plate being configured to support a display panel. A first antenna configured to receive electromagnetic waves irradiated by the display panel and disposed on the base plate adjacent to a first side of the ground plate. A second antenna configured to receive the electromagnetic waves irradiated by the display panel and disposed on the base plate adjacent to a second side of the ground plate, the second side extending substantially perpendicular to the first side.