Deformation Testing Apparatus for Early Breakage Detection
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Solution Overview
Problem
Current deformation testing machines struggle to accurately detect signs of breakage or large plastic deformation in specimens before actual failure, especially in flexible display substrates like thin glass or resin plates used in mobile phones and organic electroluminescence displays.
Innovation Solution
A deformation testing apparatus that includes a rotating mechanism to maintain the specimen between two edge portions, allowing for repeated folding and unfolding with minimal bending radius, combined with image capturing and data analysis to detect changes in deformation cycles, enabling early detection of breakage or large plastic deformation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a detector is used to stably and accurately detect the state of a specimen portion, then measurement precision is improved, but the ability to observe the specimen before actual breakage occurs deteriorates because the detector cannot capture early signs of deformation
Solution Approach 1:
The specimen is divided into multiple regions of interest, with different detection parameters applied to each region. The detection target is segmented into the specimen portion being tested and the reference portion, allowing separate analysis of deformation characteristics in each area to improve early breakage detection
Solution Approach 2:
Reference data is collected and stored before the actual deformation test begins. This preliminary action establishes a baseline for comparison, enabling the system to detect deviations that indicate early signs of breakage before they become apparent through conventional detection methods
2Adaptability or versatility
If the first attachment plate is rotated about the first line segment and/or the second attachment plate is rotated about the second line segment, then the absolute position of the subject area changes, but the relative position of the subject area to the detector remains substantially the same, enabling stable detection during deformation cycles
Solution Approach 1:
The attachment plates are designed to be rotatable rather than fixed, allowing the system to adapt to the dynamic conditions of repeated folding and unfolding. This dynamic configuration maintains the relative position between the subject area and detector throughout the deformation cycles, ensuring detection stability
Solution Approach 2:
The rotatable attachment plates serve as intermediaries between the specimen and the detector system. By allowing controlled rotation, they mediate the deformation process while maintaining stable detection conditions, decoupling the mechanical deformation from the detection geometry
Data Source
AI summary
Provide is a deformation testing apparatus in which a sign of breakage of a specimen under a deformation test can be detected before an actual breakage. The deformation testing apparatus carrying out a plurality of deformation cycles includes an image capturing means; reference data storing means storing the reference data showing the deformation state calculated based on the reference image data shot by the image capturing means; reference cycle number deformation data calculating means to calculate the reference data; detection cycle number deformation data calculating means to calculate detection cycle number deformation data showing the deformation state based on the detection image data shot at the detection cycle number being larger than the reference cycle number; and change detection means to detect that the deformation caused in the specimen is changed based on the reference cycle number deformation data and the detection cycle number deformation data.