Display Panel Sound Vibration for Forward Audio Projection
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Solution Overview
Problem
Conventional display apparatuses face challenges in directing sound towards the user while maintaining improved sound quality, as external speakers often direct sound away from the user and interfere with surrounding reflections, and occupy space that restricts design and placement.
Innovation Solution
A display apparatus with a sound generating device integrated into the rear surface of the display panel, utilizing a bobbin and protection member to vibrate the panel and direct sound forward, and partitioning to separate sound outputs and enhance adhesion strength.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If an external speaker is provided in the display apparatus, then sound can be generated, but the sound advances toward the lower or rear portion instead of the front, disrupting user immersion
Solution Approach 1:
The patent combines the sound generating function with the display panel by integrating a sound generating device directly onto the rear surface of the display panel. This merging eliminates the need for separate external speakers and enables sound to be emitted forward through the panel, resolving the contradiction between sound generation capability and sound direction toward the user.
Solution Approach 2:
The display panel serves dual functions: displaying images and generating sound. By making the display panel itself a sound emission surface, the invention achieves multi-functionality, allowing the same component to fulfill both visual display and audio output roles, thereby improving sound direction without adding separate speaker systems.
2Reliability
If an external speaker is provided in the display apparatus, then sound can be generated, but sound quality is deteriorated due to interference with sound reflected on the wall or floor
Solution Approach 1:
Instead of placing the speaker at the bottom or rear of the display apparatus where sound reflects off walls and floors, the invention inverts the sound emission direction by making the front surface of the display panel the sound emission surface. This causes sound to propagate forward directly toward the user, avoiding reflection interference from surrounding surfaces.
3Ease of operation
If a speaker is included in a set apparatus such as a television, then sound can be generated, but the speaker occupies space that may impose a restriction on design and spatial disposition
Solution Approach 1:
The invention merges the speaker function with the display panel structure, eliminating the need for separate speaker components and the space they occupy. The sound generating device is integrated directly onto the rear surface of the display panel, allowing thin-film construction that does not add significant volume, thereby resolving the contradiction between sound generation and design flexibility.
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 effectively directs sound towards the user, improves sound quality by minimizing interference, and optimizes spatial design by eliminating the need for external speakers.
Implementation Method 1
a sound generating device on a rear surface of the display panel, wherein the sound generating device includes a bobbin and a protection member on the bobbin
Data Source
AI summary
A display apparatus includes a display panel configured to display an image by emitting light, and a sound generating device on a rear surface of the display panel. The sound generating device includes a bobbin, and a protection member on the bobbin.