Display Panel Baffle Venting for Sound Output and Stereo Separation
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Solution Overview
Problem
Existing display devices face challenges in improving sound characteristics, particularly in enhancing sound output and stereo separation while maintaining effective damping control.
Innovation Solution
The display device incorporates a sound generating device on its rear surface, a chassis with an opening, and a baffle that surrounds the sound generating device, featuring exhaust portions to manage air compression and damping, thereby improving sound output and stereo separation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If a sound generating device is disposed on the rear surface of the display panel, then sound output is enhanced, but damping control becomes difficult
Solution Approach 1:
The baffle is divided into multiple exhaust portions (first exhaust portion and second exhaust portion) positioned at different locations. This segmentation allows independent control of air compression and release zones, enabling effective damping while maintaining sound output power.
Solution Approach 2:
The baffle acts as an intermediary component between the sound generating device and the chassis. It includes exhaust portions that mediate the air compression and release process, providing controlled damping without directly reducing sound output.
2Manufacturing precision
If the baffle surrounds the sound generating device, then stereo separation is improved, but air compression management becomes complex
Solution Approach 1:
The baffle is segmented into multiple exhaust portions positioned at different locations around the sound generating device. This segmentation creates distinct air compression and release zones, managing air compression complexity while maintaining stereo separation through the surrounding structure.
Solution Approach 2:
Different portions of the baffle have different functions: some portions surround the sound generating device for stereo separation, while other portions include exhaust openings for air compression management. This local differentiation of quality allows simultaneous achievement of both objectives.
3Ease of operation
If exhaust portions are added to the baffle, then damping control is improved, but device complexity increases
Solution Approach 1:
The baffle is segmented into multiple exhaust portions that can be independently positioned and sized. This segmentation provides fine-grained control over damping characteristics while keeping each individual exhaust portion simple in structure.
Solution Approach 2:
The exhaust portions are designed to automatically manage air compression and release without requiring external control mechanisms. The structure itself provides the damping control function, eliminating the need for additional active components.
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 enhances sound output characteristics and stereo separation by controlling damping through the baffle's exhaust portions, leading to improved sound quality and viewer immersion.
Implementation Method 1
controlling damping through the baffle's exhaust portions
Implementation Method 2
controlling damping through the baffle's exhaust portions
Implementation Method 3
a sound generating device disposed on a rear surface of the display panel
Data Source
AI summary
A display device includes a display panel, a sound generating device disposed on a rear surface of the display panel, a chassis disposed on the rear surface of the display panel and including an opening, and a baffle disposed between the display panel and the chassis and including an exhaust portion. The exhaust portion extends toward the opening.