Display Panel Sound Generator Layout for Slimer, Clearer Audio
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Solution Overview
Problem
Display apparatuses face challenges in delivering clear sound output due to sound interference with walls and floors, and adding speakers increases thickness, compromising sound quality and user immersion.
Innovation Solution
A display apparatus with a sound generator integrated between the display panel and a supporting member, utilizing vibration members to transfer sound vibrations, including a piezoelectric sound generator and vibration transfer/generation members made of different materials to enhance sound quality and minimize thickness.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a speaker is added to a display apparatus, then sound output capability is improved, but thickness increases
Solution Approach 1:
The patent combines the sound generator with the display panel structure by positioning it between the display panel and supporting member, integrating audio functionality into the existing display thickness rather than adding separate speaker components that would increase overall thickness
Solution Approach 2:
The sound generator utilizes the vertical space between the display panel and supporting member, converting a two-dimensional display structure into a three-dimensional audio-visual integrated structure that maintains slim profile while enabling sound output
2Device complexity
If sound is generated in the lower or rear portion of the display panel, then device complexity is reduced, but sound quality deteriorates due to interference
Solution Approach 1:
The vibration transfer member acts as an intermediary between the sound generator and display panel, efficiently transmitting vibrations while the display panel itself serves as the sound radiation surface, eliminating the need for separate speaker grilles or complex sound output structures
Solution Approach 2:
The display panel performs dual functions: visual display and sound radiation. By making the display panel itself the sound output surface, the patent eliminates the need for separate sound output mechanisms, reducing structural complexity while maintaining sound quality
3Reliability
If vibration members are added to enhance sound quality, then sound frequency range is improved, but device complexity increases
Solution Approach 1:
The patent divides the vibration transmission function into two specialized components: vibration generation members that create vibrations and vibration transfer members that transmit them to the display panel. This segmentation allows each component to be optimized for its specific function while maintaining overall system simplicity
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 sound quality by generating a broader range of sound frequencies, from low-pitched to high-pitched, while maintaining a slim design, reducing distortion and enhancing the audio experience without increasing thickness.
Implementation Method 1
The vibration transfer member may be configured to transfer a vibration having a high-pitched sound band of the sound generator to the display panel to generate sound
Implementation Method 2
The vibration generation member may be configured to vibrate the display panel to generate sound having a low-pitched sound band of the sound generator
Data Source
AI summary
A display apparatus is disclosed. The display apparatus includes a display panel configured to display an image and a supporting member at a rear surface of the display panel. The display apparatus also includes a sound generator between the display panel and the supporting member, and at least one vibration member between the display panel and the supporting member.