Flexible Display Bending Test Device with Sliding Clamps
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Solution Overview
Problem
There is no specialized mechanism for conducting bending tests on flexible display devices, which are essential for evaluating their bending radius and service life.
Innovation Solution
A bending test device comprising a bending shaft, upper and lower fixing plates, clamping plates with tension measuring elements, and a motion device with a motor and crank slider mechanism to rotate the bending shaft, allowing for controlled bending and stress measurement of flexible display devices.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If no specialized bending test mechanism is used, then the device complexity is reduced, but the measurement precision and reliability of bending tests cannot be ensured
Solution Approach 1:
The bending test device is divided into multiple functional modules: a bending mechanism with adjustable bending radius, a clamping mechanism with tension measuring elements, and a motion device. This segmentation allows each module to be optimized independently for its specific function while maintaining overall system precision without excessive complexity.
Solution Approach 2:
The bending mechanism is designed with universal applicability to test different flexible display devices with varying bending radii. The clamping mechanism incorporates both clamping and measurement functions, allowing the same structure to perform multiple operations, thereby improving measurement precision without proportionally increasing device complexity.
2Reliability
If a specialized bending test mechanism is introduced, then the reliability of bending tests is improved, but the ease of operation decreases
Solution Approach 1:
The clamping mechanism is designed to automatically clamp and release the flexible display device through the motion device, reducing manual intervention. The tension measuring elements automatically record bending stress data during the test, improving reliability while minimizing operational complexity through automated functions.
3Measurement precision
If tension measuring elements are integrated into the clamping mechanism, then the measurement precision of bending stress is improved, but the device complexity increases
Solution Approach 1:
The tension measuring elements are integrated directly into the clamping mechanism structure, merging the clamping function with the measurement function. This allows bending stress to be measured precisely at the point of contact without requiring separate measurement devices, thereby improving measurement precision while avoiding the complexity of additional independent measurement systems.
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 device enables simple and effective measurement of bending stress at various angles, evaluating the bending ability of flexible display devices and ensuring their durability.
Implementation Method 1
the motion device comprises a motor and a crank slider mechanism, the crank slider mechanism comprises a cam and a rack, the motor is connected to the cam through a driving shaft, the rack is connected to an edge of the cam through a connecting rod, the crank slider mechanism is configured to convert a rotational motion of the motor to a rectilinear motion of the rack
Data Source
AI summary
A bending test device and system for a flexible display device is provided. The bending test device has a bending device. The bending device has a bending shaft, an upper bending plate, and a lower fixing plate. An upper clamping plate is disposed on a surface of the upper bending plate. The upper clamping plate is configured to slide along the surface of the upper bending plate. A lower clamping plate is disposed on a surface of the lower fixing plate. The lower clamping plate is configured to slide along the surface of the lower fixing plate. A first tension measuring element connects to an end of the upper clamping plate. A second tension measuring element connects to an end of the lower clamping plate.