Bottom Member Buffer Design for Display Impact Resistance
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Solution Overview
Problem
Display devices with integrated sound-generating capabilities face challenges in impact resistance and structural integrity due to the incorporation of vibrating acoustic elements, which are prone to damage from external impacts.
Innovation Solution
A bottom member design incorporating a light-absorbing element, a top coupling layer, a buffer element with defined openings, and a vibrating acoustic element coupled via a filling layer, where the vibrating acoustic element overlaps with the light-absorbing element and buffer element, enhancing impact resistance and sound generation by utilizing the display panel as a diaphragm.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-generated harmful factors
If a vibrating acoustic element is integrated into the display device, then sound-generating capability is improved, but impact resistance deteriorates
Solution Approach 1:
A buffer element is disposed between the vibrating acoustic element and the light-absorbing element to cushion external impacts before they reach the acoustic element. This beforehand cushioning protects the fragile vibrating acoustic element from damage while maintaining sound generation functionality.
Solution Approach 2:
The vibrating acoustic element is nested within the bottom member structure, specifically positioned to overlap with the light-absorbing element when viewed from the top. This nested arrangement integrates the acoustic element into the existing display device structure, protecting it while maintaining compact design.
2Reliability
If the periphery of the first opening is located more inside than the periphery of the vibrating acoustic element, then impact resistance is improved, but sound output may be compromised
Solution Approach 1:
The buffer element has different structural properties in different regions: in the first opening region, it provides acoustic coupling for sound output, while in the surrounding regions, it provides impact cushioning. This local quality differentiation allows simultaneous optimization of both sound output and impact resistance.
Solution Approach 2:
The buffer element acts as an intermediary between the vibrating acoustic element and the external environment. It mediates between the need for acoustic coupling (for sound output) and the need for mechanical protection (for impact resistance) by providing both functions through its specific structural design.
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 solution improves the impact resistance and sound output of display devices by effectively coupling the vibrating acoustic element with the display panel, reducing the risk of damage from external impacts and enhancing sound pressure levels.
Implementation Method 1
a vibrating acoustic element disposed below the first buffer element, where the vibrating acoustic element overlaps with the first opening and the light-absorbing element when viewed from a top
Implementation Method 2
the vibrating acoustic element is coupled with the first buffer element via the filling layer
Implementation Method 3
a light-absorbing element disposed under the display panel
Data Source
AI summary
A bottom member includes a light-absorbing element; a top coupling layer disposed on the light-absorbing element; a first buffer element disposed under the light-absorbing element, where a first opening is defined in the first buffer element; a filling layer disposed in the first opening; and a vibrating acoustic element disposed below the first buffer element, where the vibrating acoustic element overlaps with the first opening and the light-absorbing element when viewed from a top, and the vibrating acoustic element is coupled with the first buffer element via the filling layer.