Display Panel Sound Generation via Vibration and Partition Contours
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Solution Overview
Problem
Conventional display apparatuses face issues with sound quality due to speakers being positioned below or behind the display panel, leading to sound being directed away from the user and interference with surrounding surfaces, which affects immersion and clarity.
Innovation Solution
A display apparatus with a sound generation device that vibrates the display panel to generate sound, utilizing a supporting member and partitions with unique edge contours to direct sound forward and reduce wave phenomena, enhancing sound quality and design flexibility.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-generated harmful factors
If a 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 inverts the conventional speaker placement by positioning the sound generation device at the front of the display panel rather than at the rear. This allows sound to propagate directly toward the user in the forward direction, eliminating the need for sound to bounce off the rear surface and improving immersion experience.
Solution Approach 2:
The patent changes the spatial dimension of sound propagation by directing sound waves forward through the display panel rather than backward. The sound generation device vibrates the front surface of the display panel to emit sound waves in the forward direction, fundamentally changing the sound propagation path from rear-to-front to front-to-rear.
2Object-generated harmful factors
If a speaker is provided in the display apparatus, then sound can be generated, but sound quality deteriorates due to interference with sound reflected on the wall or floor
Solution Approach 1:
The patent inverts the sound propagation direction to prevent reflection interference. By generating sound at the front of the display panel and directing it forward, the sound waves travel directly toward the user without bouncing off the rear surface and reflecting off walls or floor, thereby eliminating degradation of sound quality.
3Object-generated harmful factors
If a speaker is included in a set apparatus, then sound function is provided, but the speaker occupies space that imposes restriction on design and spatial disposition
Solution Approach 1:
The patent merges the sound generation function with the display panel itself. The sound generation device is integrated into the front surface of the display panel, using the panel structure as part of the sound transmission medium. This eliminates the need for a separate rear-mounted speaker and frees up space for other design considerations.
Solution Approach 2:
The display panel serves multiple functions: it displays images and simultaneously acts as a sound transmission medium. The front surface of the display panel functions both as the viewing surface and as the vibrating element for sound generation, reducing the need for additional components and improving 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, improving sound quality by minimizing interference and allowing for more compact and aesthetically pleasing designs in devices like TVs and laptops.
Implementation Method 1
a sound generation device configured to vibrate the display panel to generate sound
Data Source
AI summary
A display apparatus includes: a display panel configured to display an image, a sound generation device configured to vibrate the display panel to generate sound, a supporting member on a rear surface of the display panel, and a partition surrounding the sound generation device, the partition including an edge having a partition edge contour shape that differs from a panel edge contour shape of the display panel.