Display Device Blocking Member Sound Interference
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Solution Overview
Problem
Conventional flat panel display devices face challenges in maintaining high sound quality due to interference and distortion between sound channels, which reduces sound pressure and introduces reflected waves or standing waves, especially when a neutral area is used to reduce interference.
Innovation Solution
The display device incorporates a blocking member spaced apart from the partition and support members, creating spaces where sound waves can decay, preventing interference and distortion between sound channels, and allowing for a wider vibrating area to enhance sound pressure.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If a neutral area is used to reduce interference between sound channels, then sound channel separation is improved, but sound pressure is reduced due to reflected waves and standing waves
Solution Approach 1:
A blocking member is introduced as an intermediary element between sound channels to absorb or block reflected sound waves. This mediator prevents harmful sound reflections from reaching the neutral area, thereby maintaining both sound channel separation and sound pressure without requiring a large neutral area
Solution Approach 2:
The harmful reflected sound waves are extracted or removed from the sound propagation path using the blocking member. By taking out the reflected waves before they can create standing waves in the neutral area, the system maintains sound pressure while still achieving channel separation
2Loss of energy
If the vibrating area of the display panel is increased to enhance sound pressure, then sound quality is improved, but interference between sound channels increases
Solution Approach 1:
The display panel's vibrating area is segmented into multiple independent vibration zones, each corresponding to a specific sound channel. Partition members divide the panel into distinct areas that can vibrate independently, allowing each zone to contribute to sound pressure without causing interference with other channels
Solution Approach 2:
Partition members serve as intermediaries between adjacent vibrating areas, preventing sound waves from one channel from interfering with another channel's vibration zone. This allows the total vibrating area to be maximized while maintaining channel separation
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 configuration effectively reduces sound interference and distortion, improving sound quality by attenuating sound waves and preventing reductions in sound pressure caused by reflected or standing waves, as shown in the improved sound output characteristics compared to conventional devices.
Implementation Method 1
the display device may decay the sound waves generated from the sound generator in the space between the blocking member and the partition member
Implementation Method 2
the display device may prevent or reduce interference or distortion of sound between sound channels, and may prevent or reduce the reduction of the sound pressure caused by reflected waves or standing waves
Data Source
AI summary
A display device includes a display panel including a first area and a second area, a sound generator disposed in at least one of the first and second areas on the display panel, a partition member disposed at a boundary between the first and second areas on the display panel, and extending in a predetermined direction, and a blocking member disposed in at least one of the first and second areas on the display panel, and spaced apart from the partition member.