Display Vibration Module Forward Sound Direction
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Solution Overview
Problem
Display apparatuses face challenges in maintaining high sound quality due to sound interference from walls and floors, leading to reduced immersion experiences for viewers, particularly in directing sound waves effectively forward.
Innovation Solution
A display apparatus design incorporating a vibration generating module, including a piezoelectric device or a metal alloy rear cover, to direct sound waves forward and laterally, enhancing sound quality without the need for separate sound signal implementation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If sound is output from a conventional sound device, then sound can be heard, but sound quality is degraded due to interference between sounds reflected from walls and ground
Solution Approach 1:
The patent inverts the conventional sound output approach by using the display panel itself as a vibration plate to generate sound waves that travel forward toward the viewer, rather than using a separate sound device that outputs sound backward or downward. This inversion eliminates sound interference from wall and ground reflections, thereby improving sound quality.
Solution Approach 2:
The display panel serves dual functions: displaying images and generating sound waves. By making the display panel function as both a visual display device and a vibration plate for sound output, the patent eliminates the need for separate sound devices and achieves improved sound quality through forward-directed sound waves.
2Reliability
If a vibration generating module is added to direct sound forward, then sound quality improves, but device complexity increases
Solution Approach 1:
The patent merges the sound generation function with the display panel by directly coupling the vibration generating module to the display panel, which then functions as a vibration plate. This integration combines multiple functions into a single structure, improving sound quality while minimizing the increase in device complexity.
Solution Approach 2:
The display panel serves itself by functioning as both the display device and the vibration plate for sound output. The vibration generating module utilizes the display panel's own structure to generate and transmit sound waves forward, eliminating the need for separate sound output mechanisms and reducing overall device complexity.
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 waves forward and laterally, improving sound quality and viewer immersion by utilizing the display module as a vibration plate, reducing sound interference and enhancing the transmission of high-pitched sound bands.
Implementation Method 1
a vibration generating module at a rear region of the rear cover, wherein the vibration generating module is configured to output sound in a forward direction and a lateral direction with respect to the display module
Implementation Method 2
A display apparatus design incorporating a vibration generating module, including a piezoelectric device or a metal alloy rear cover, to direct sound waves forward
Data Source
AI summary
A display apparatus may include a rear cover at a rear surface of a display module and a vibration generating module at a rear region of the rear cover. The vibration generating module may be configured to output sound in a forward direction and a lateral direction of the display module.