Rotatable Display Stand Composite Washer Vibration Damping
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Solution Overview
Problem
Rotatable stands for liquid crystal or plasma display modules cause excessive vibration when adjusted, leading to inconvenience for users due to joint gaps between the display module and the stand.
Innovation Solution
A rotatable stand design incorporating a composite washer with a flexible material layer and a first rigid material layer, positioned between the display module and the sleeve, which absorbs vibration and reduces abrasion, ensuring firmness and stability during rotation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a rotatable stand is used to adjust the display module angle, then viewing comfort is improved, but excessive vibration occurs due to joint gaps
Solution Approach 1:
A composite washer is introduced as an intermediary component between the display module and the rotatable stand. This washer comprises a rigid material layer that contacts the display module and a flexible material layer that contacts the rotatable stand, serving as a mediator to eliminate joint gaps and reduce vibration while preserving the rotation function
Solution Approach 2:
The washer is constructed from composite materials with different properties: a rigid material layer (such as metal or hard polymer) for structural support and abrasion resistance, and a flexible material layer (such as rubber or elastomer) for vibration absorption. This composite structure resolves the contradiction by combining the benefits of both rigid and flexible materials
2Reliability
If the display module is firmly connected to the rotatable stand, then stability is improved, but abrasion occurs during rotation
Solution Approach 1:
The friction parameters at the contact interface are modified by introducing the composite washer. The flexible material layer provides appropriate friction to maintain stability during rotation, while the rigid material layer protects the display module from direct abrasion against the metal stand
Solution Approach 2:
The composite washer acts as a protective intermediary between the display module and the rotatable stand, preventing direct contact and abrasion while maintaining the necessary connection for stability
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 composite washer effectively reduces vibration and maintains firmness of the display device by absorbing rotational vibrations and preventing abrasion, enhancing the stability and longevity of the display module's rotation mechanism.
Implementation Method 1
the flexible material layer of the composite washer is provided between the sleeve and the first rigid material layer to absorb vibration
Implementation Method 2
the composite washer has a flexible material layer and a first rigid material layer
Data Source
AI summary
A display device including a rotatable stand and a display module provided on the rotatable stand is provided. The rotatable stand includes a base, a sleeve provided on the base, a composite washer, and a rotatable structure. One end of the sleeve is connected with the base. The composite washer has a flexible material layer and a rigid material layer. Further, the rotatable structure is disposed through the sleeve, the display module is adapted to be fixedly connected with one end of the rotatable structure, and the composite washer is disposed between the display module and the sleeve. The first rigid material layer contacts the display module, and the flexible material layer is disposed between the sleeve and the second rigid material layer.