Resonant Testing System for Display Devices
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Solution Overview
Problem
Conventional methods for reducing resonance in display devices lack the ability to instantly and graphically provide information about the resonant source and level, making it difficult for technicians to evaluate and adjust the device effectively.
Innovation Solution
A resonant testing system comprising a processing circuit, a microphone array, and a camera that generates a scanning frequency signal, captures audio signals, and computes real-time resonant position and level data, providing graphical feedback to assist in resonance reduction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If conventional resonance testing methods are used, then resonance reduction can be achieved through structure or material adjustment, but the resonant source and resonant level information cannot be provided instantly and graphically
Solution Approach 1:
The system uses vibration analysis through microphone arrays to detect resonant frequencies and positions in real-time, replacing conventional slow testing methods with rapid vibration-based measurement that provides immediate feedback on resonant characteristics
Solution Approach 2:
The patent replaces conventional mechanical resonance testing with an optical-acoustic measurement system using cameras and microphone arrays, enabling non-contact, real-time detection of resonant positions and levels through signal processing rather than physical measurement
2Ease of operation
If conventional resonance testing methods are used, then resonance can be reduced, but graphical real-time feedback for evaluation is difficult to obtain
Solution Approach 1:
The system implements real-time feedback by continuously monitoring resonant signals through microphone arrays and cameras, processing the data to identify resonant positions and levels, and immediately displaying graphical results that guide technicians in adjusting the display device structure or materials
Solution Approach 2:
The patent uses color-coded visual display to represent different resonant levels and positions, with the camera capturing images and the system overlaying thermal or color maps that intuitively show resonant hotspots, making it easy for technicians to identify and address resonance issues
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 technicians to instantly assess and adjust display devices for resonance reduction, providing graphical real-time results that facilitate convenient evaluation and improvement of resonance levels.
Implementation Method 1
When a resonance of the device under test corresponding to the scanning frequency signal
Implementation Method 2
each one of the plurality of microphones receiving the sound played by the device under test
Data Source
AI summary
A resonant testing system for testing a device under test, including a processing circuit, a microphone array and a camera is disclosed. The processing circuit generates a scanning frequency signal and transmits the scanning frequency signal to the device under test, which plays sound based on the scanning frequency signal. The microphone array includes several microphones, each of the microphones receives the sound played by the device under test, and the microphone array outputs several audio signals corresponding to the microphones. The camera captures a real time image signal of the device under test, and transmits the real time image signal to the processing circuit. The processing circuit computes resonant positions and resonant levels according to the audio signals, and combines the resonant positions, the resonant levels and the real time image signal to generate a real time resonant result. A resonance testing method is disclosed.