Display Panel Vibration Layers for Speaker-Free Sound Output
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Display devices require separate speakers for sound output, which occupy space and limit design, and sound quality is degraded due to interference with reflected sounds, reducing viewer immersion.
Innovation Solution
A device with a vibration member and apparatus that includes overlapping vibration layers with different thicknesses, driven by a vibration apparatus to enhance sound quality and pressure characteristics.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-generated harmful factors
If a separate speaker is installed in the display device, then sound output is provided, but the device occupies space and design flexibility is limited
Solution Approach 1:
The patent merges the speaker function with the display panel by integrating a vibration member directly into the panel structure. The vibration member is positioned at the rear surface of the display panel and works with the vibration apparatus to generate sound waves that propagate through the panel, eliminating the need for separate speakers and improving space utilization.
Solution Approach 2:
The display panel is given multiple functions: it serves both as the visual display interface and as the sound output mechanism. The vibration member integrated into the panel structure enables the panel to generate sound waves, making it a multi-functional component that reduces the need for additional dedicated speaker components.
2Object-generated harmful factors
If sound travels to rearward or downward direction, then speaker function is achieved, but sound quality is degraded due to interference with reflected sounds
Solution Approach 1:
The patent changes the sound propagation dimension by directing sound waves forward through the display panel rather than allowing them to travel rearward or downward. The vibration member generates sound waves that propagate through the panel structure in the forward direction, avoiding interference with reflected sounds from walls and ground, thereby improving sound quality and pressure characteristics.
3Manufacturing precision
If vibration apparatus increases amplitude displacement, then sound pressure characteristics improve, but power consumption increases
Solution Approach 1:
The patent optimizes the parameters of the vibration apparatus and vibration member to achieve efficient sound wave generation. By carefully designing the vibration characteristics and amplitude displacement parameters, the system achieves improved sound pressure characteristics while maintaining acceptable power consumption levels.
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
Improves sound pressure characteristics, enhances sound quality, and reduces power consumption by increasing amplitude displacement, while eliminating the need for separate speakers.
Implementation Method 1
a vibration apparatus configured to vibrate the vibration member, wherein the vibration apparatus includes a vibration part having first to n-th vibration layers overlapping each other
Data Source
AI summary
The present disclosure relates to a device having a vibration apparatus. According to an embodiment of the present disclosure, a device comprises: a vibration member; and a vibration apparatus configured to vibrate the vibration member. The vibration apparatus includes a vibration part having first to n-th vibration layers overlapping each other. Here, ‘n’ is a natural number greater than or equal to 2, and the first to n-th vibration layers have different thicknesses.