Display Panel Vibration Plate Audio for Front-Facing Sound
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Solution Overview
Problem
Display apparatuses and computing devices suffer from degraded sound quality due to interference and improper sound directionality, leading to reduced viewer immersion.
Innovation Solution
Incorporation of a vibration plate and vibration module in the display apparatus, where the vibration plate vibrates based on sound driving signals to output sound directly from the display panel, eliminating the need for separate speakers and enhancing sound quality and directionality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a sound device is disposed on a lower side or rear side of the display apparatus, then the device complexity is reduced, but the sound quality is degraded due to interference and improper directionality
Solution Approach 1:
The patent merges the sound output function with the display panel by enabling the display panel itself to vibrate and produce sound waves. This integration eliminates the need for separate sound devices positioned at inconvenient locations, while simultaneously improving sound quality through direct front-facing sound output that reaches the user's ears without interference.
2Ease of manufacture
If the sound device is spaced apart from the screen, then the manufacturing ease is improved, but the viewer immersion experience is reduced due to distance difference between image and sound
Solution Approach 1:
By combining the sound output function directly into the display panel structure, the patent eliminates the spatial separation between the screen and sound source. The display panel vibrates to generate sound waves that emanate from the same location as the visual display, creating a synchronized audio-visual experience that enhances viewer immersion without complicating manufacturing.
3Device complexity
If the sound output direction is not toward the viewer's ears, then the device structure is simplified, but the sound having strong directionality is lost or distorted
Solution Approach 1:
Instead of directing sound from a separate speaker toward the viewer, the patent inverts the approach by having the display panel itself generate sound that naturally radiates toward the viewer's ears. The display panel vibrates to produce sound waves that travel directly to the user's ears, ensuring proper directionality without requiring complex sound routing structures.
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 enables high-quality sound output across a wide frequency range, directly reaching the viewer without distortion, thereby improving immersion experience.
Implementation Method 1
a vibration module configured to vibrate the vibration plate... the display panel is further configured to vibrate based on a vibration of the vibration plate to output sound
Data Source
AI summary
A display apparatus and a computing apparatus including the same are provided. A display apparatus includes a display panel configured to display an image, a vibration plate at a rear surface of the display panel, a vibration device at the vibration plate and configured to vibrate the vibration plate, and a pad adjacent to the vibration device. The vibration device is not connected to the vibration plate via the pad. A height of the pad may be greater than a height of the vibration device.