Vibration Panel Hole Layout for Forward Sound in Thin Displays
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Solution Overview
Problem
Speakers in display apparatuses occupy space, limiting design and spatial disposition, and output sound in directions other than forward, hindering viewer immersion.
Innovation Solution
An apparatus with a vibration member and supporting member, including hole regions larger than the vibration apparatus, outputs sound in both forward and rearward directions, enhancing sound clarity and sharpness.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If a speaker is embedded in a display apparatus, then sound can be output, but the speaker occupies space and limits design and spatial disposition
Solution Approach 1:
The patent combines the speaker function with the display panel by making the display panel itself serve as the vibration member. The backlight unit is removed and replaced with a light source that can penetrate the display panel, allowing the panel to vibrate and produce sound while maintaining its display function. This merging eliminates the need for a separate speaker occupying additional space.
Solution Approach 2:
The display panel is given multiple functions: it serves both as the visual display surface and as the sound-generating vibration member. By applying a light-emitting layer to the vibration member, the panel can simultaneously emit light for display and vibrate to produce sound, achieving multi-functionality in a single component.
2Volume of moving object
If sound is output in rearward or lateral direction, then speaker space is reduced, but sound does not travel toward viewer and immersion experience is hindered
Solution Approach 1:
The patent transitions from traditional lateral or rearward sound output to forward sound output by utilizing the front surface of the display panel as the vibration surface. This dimensional change allows sound waves to propagate in the same direction as the viewer's line of sight, enhancing immersion without compromising space efficiency.
Solution Approach 2:
Instead of placing the speaker behind or to the side of the display as is conventional, the invention inverts the approach by making the front surface of the display panel itself the sound output surface. This inversion allows sound to emerge from the same plane as the visual content, creating a more immersive experience.
3Length of stationary object
If piezoelectric elements are used to enable thinness, then device thickness is reduced, but sound output in forward direction becomes more challenging
Solution Approach 1:
The patent divides the display panel into multiple regions, with specific areas designated as vibration members for sound output. By segmenting the panel and applying light-emitting layers selectively to certain regions, the system can maintain overall thinness while creating dedicated zones for effective forward sound projection.
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
Enables sound to be output in a forward direction, improving viewer immersion and sound clarity.
Implementation Method 1
a vibration apparatus configured to vibrate the vibration member
Data Source
AI summary
An apparatus includes a vibration member, a vibration apparatus configured to vibrate the vibration member, and a supporting member disposed at a rear surface side of each of the vibration member and the vibration apparatus and including a hole region overlapping with the vibration apparatus. A size of the hole region is greater than a size of the vibration apparatus.