Multi-Mode Flexible Display Drop Test Jig
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Solution Overview
Problem
Existing drop test devices are inadequate for evaluating the durability of flexible display modules that operate in multiple modes, as they fail to simulate the actual usage environment and accurately detect defects caused by drops.
Innovation Solution
A drop test device and method that include a clamp to grip and drop a falling body, which consists of a display module operating in multiple modes and a jig, onto an impact plate, simulating the actual usage environment and allowing for the evaluation of defects based on drop impact.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a single jig is used for drop testing, then the device complexity is reduced, but the reliability of evaluation for multi-mode display modules deteriorates
Solution Approach 1:
The jig is designed with a universal structure that can accommodate display modules in multiple modes (folded, unfolded, retracted, extended) through adjustable clamping mechanisms and interchangeable fixtures, allowing one jig to perform multiple testing functions rather than requiring separate jigs for each mode
2Measurement precision
If the display module is tested in its actual multi-mode operating environment, then the measurement precision of defect detection is improved, but the device complexity increases
Solution Approach 1:
The testing process is segmented into distinct mode-specific test sequences, where the display module is systematically tested in each operational mode (folded, unfolded, retracted, extended) separately, allowing precise defect detection for each mode while maintaining a standardized testing framework
3Adaptability or versatility
If multiple jigs with different widths are used to match different display module modes, then the adaptability of the testing device is improved, but the manufacturing precision requirements increase
Solution Approach 1:
The jig incorporates dynamic adjustment mechanisms such as movable clamps, adjustable support structures, and interchangeable components that can be reconfigured for different display module modes, eliminating the need for multiple fixed-width jigs and reducing manufacturing precision requirements while maintaining testing adaptability
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
The proposed solution enables accurate evaluation of defects in flexible display modules operating in multiple modes, improving the reliability of these modules by simulating the actual usage environment and detecting defects caused by drops.
Implementation Method 1
a clamp FXP that grips a falling body FB and that drops the falling body FB by releasing, by a predetermined operation, a gripping force applied to the falling body FB
Implementation Method 2
an impact plate IMP having an impact surface IMS with which the falling body FB collides
Data Source
AI summary
A drop test device includes a clamp that grips a falling body and that drops the falling body by releasing, by a predetermined operation, a gripping force applied to the falling body and an impact plate having an impact surface with which the falling body collides. The falling body includes a display module that operates in a first mode and a second mode and a jig to which the display module is coupled. The jig includes a first jig to which the display module in the first mode is coupled and a second jig to which the display module in the second mode is coupled.