Flexible Display Two-Way Speaker Layout for Landscape Sound
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Solution Overview
Problem
Electronic devices with flexible displays, such as slidable or rollable displays, experience speaker performance deterioration when held in landscape mode due to covering speaker holes, and mounting challenges hinder effective speaker hole placement.
Innovation Solution
Incorporating two-way speakers and additional speaker holes in the side/bottom direction of the main body housing to maintain speaker performance, with sound paths designed for high or low straightness to enhance sound quality in different frequency bands.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If speaker holes are disposed at top and bottom of main body housing, then speaker mounting is simplified, but speaker performance deteriorates when device is held in landscape mode with both hands
Solution Approach 1:
The patent adds speaker holes not only at the top and bottom of the main body housing but also at the side surfaces. This dimensional expansion from 2D (top/bottom only) to 3D (including sides) ensures that at least one speaker hole remains uncovered regardless of how the user holds the device in landscape mode, thereby maintaining speaker performance while preserving the simplicity of mounting
2Adaptability or versatility
If display is made slidable or rollable to expand display area, then display versatility is improved, but speaker hole placement becomes more difficult due to driving unit mounting structure
Solution Approach 1:
The patent places speaker holes at the side surfaces of the main body housing in addition to top and bottom surfaces. This lateral placement strategy bypasses the mounting space constraints created by the sliding/rolling display driving units, as the side surfaces provide available space that does not conflict with the driving unit structure, thus enabling speaker hole placement without compromising display versatility
3Stability of the object's composition
If speaker holes are covered when holding device with both hands in landscape mode, then device stability is improved, but speaker performance deteriorates
Solution Approach 1:
By distributing speaker holes across multiple dimensions (top, bottom, and side surfaces), the patent ensures that when a user holds the device in landscape mode with both hands, at least one speaker hole remains exposed. This multi-dimensional distribution strategy allows the device to maintain both stability during handling and speaker performance simultaneously
Solution Approach 2:
The patent creates different local conditions for sound emission by placing speaker holes at various positions (top, bottom, sides) with different orientations. This allows sound to be emitted from multiple directions, ensuring that regardless of device orientation or holding position, at least one speaker hole maintains a good sound emission state, thus resolving the conflict between device stability and speaker performance
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
Prevents speaker performance deterioration and improves sound quality by providing a speaker volume boost effect, enhancing low-band performance with high straightness and high-band performance with low straightness sound paths.
Implementation Method 1
a speaker (115, 116) disposed in the main body housing (11) and radiating sound toward a user's ear through a speaker hole
Data Source
Figure 1
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Figure 2B
AI summary
The present invention discloses an electronic device including a flexible display. The disclosed electronic device may include a main body housing comprising a first plate disposed to face a first direction, a second plate disposed to face a second direction which is opposite to the first direction, and a plurality of third side members disposed to face a third direction which is perpendicular to the first and second directions; a support frame disposed to overlap at least a partial area of the first plate, and sliding in a direction away from the main body housing or sliding in a direction toward the main body housing; and at least one or more speakers disposed in the main body housing, and emitting sound in the second direction and the third direction, at least one or more first speaker holes for emitting the sound of the speaker in the third direction may be formed in the side member, and at least one or more second speaker holes for emitting the sound of the speaker in the second direction may be formed in the second plate. Besides, various embodiments are possible.