Display Panel Sounding via Transmission Channels
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Solution Overview
Problem
Conventional screen sounding technologies for display devices face issues such as immature technology, sound distortion, and the risk of damage to the display panel due to long-term vibration, as they require the screen to vibrate to produce sound.
Innovation Solution
A display device with sounding units arranged on one side of the panel away from the screen, utilizing sound transmission channels between display pixel groups to output sound, eliminating the need for screen vibration and allowing for better sound quality and control.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If screen sounding technology is used to integrate picture and sound, then sound-picture integration effect is achieved, but display panel may be damaged due to long-term vibration
Solution Approach 1:
The patent divides the sounding function from the display panel by introducing separate sounding units positioned behind the panel. These units generate sound independently without requiring the display panel to vibrate, thus segmenting the sound generation function from the display function and eliminating the risk of panel damage from long-term vibration.
Solution Approach 2:
The patent introduces an intermediary structure (sounding units with sound transmission channels) between the sound source and the display panel. The sounding units generate sound and transmit it through dedicated channels without directly coupling the vibration to the display panel, acting as a mediator that enables sound output while protecting the panel from vibration damage.
2Power
If excitation vibrator is attached to drive screen vibration, then sound output is achieved, but sound distortion occurs
Solution Approach 1:
The patent replaces the mechanical vibration system (excitation vibrator directly driving screen vibration) with a controlled acoustic system. Sounding units generate sound waves that are transmitted through sound transmission channels, substituting direct mechanical coupling with a controlled acoustic transmission path that reduces distortion and improves sound quality.
3Ease of operation
If sounding units are arranged behind display panel, then sound transmission is achieved, but device structure becomes complex
Solution Approach 1:
The patent designs the sounding units to serve multiple functions: they generate sound, transmit it through integrated sound transmission channels, and can be controlled independently for different audio signals. This multi-functionality reduces the need for separate components and simplifies the overall structure despite the added capability of sound output.
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
This solution provides a screen sounding effect without damaging the display panel, ensuring better sound quality and ease of implementation, while avoiding the risks associated with screen vibration.
Implementation Method 1
sound produced by the sounding units is output from the display panel through the sound transmission channels
Data Source
AI summary
The present application provides a display device, a sounding control method and a sounding control device. The display device includes: a display panel including a plurality of display pixel groups, wherein each display pixel group includes at least one pixel unit; a plurality of sounding units arranged in an array at one side of the display panel away from a display screen; and sound transmission channels in spacing regions between adjacent ones of the display pixel groups. Sound produced by the sounding units is output from the display panel through the sound transmission channels, and sound produced by different ones of the sounding units is output through different ones of the sound transmission channels.