Telescopic Speaker Mechanism for Flat-Panel Display
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Solution Overview
Problem
Traditional flat-panel display devices face challenges with large motion space and an unsimplified appearance due to the need for extensive speaker motion mechanisms, which compromise sound quality and aesthetics.
Innovation Solution
A flat-panel display device design incorporating a motion module with a first and second telescopic assembly, allowing the speakers to move in perpendicular directions, enabling compact and efficient sound output while maintaining a sleek appearance by synchronizing the movement of the speakers within the display's structure.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a forward-vocalizing speaker is fixed at the bottom of the display screen, then sound quality is optimized, but the device occupies large space and cannot achieve a simple appearance
Solution Approach 1:
The speaker is transformed from a fixed structure to a movable one through the telescopic assembly. The speaker can dynamically adjust its position between extended (for sound output) and retracted (for appearance) states, resolving the contradiction between sound quality and appearance simplicity.
Solution Approach 2:
The speaker is nested within the telescopic assembly structure, which itself is integrated into the display device housing. When retracted, the speaker is hidden within the device body, achieving a simple appearance while maintaining the capability for sound output when extended.
2Reliability
If a telescopic speaker extends out by a large distance from the front of the display screen, then sound output is improved, but the appearance effect is poor
Solution Approach 1:
The speaker employs dynamic motion control, extending only when sound output is needed and retracting when not in use. This dynamic behavior allows the system to achieve good sound output performance temporarily while maintaining good appearance most of the time.
Solution Approach 2:
The speaker operates in periodic cycles of extension and retraction based on sound output requirements. During sound playback, the speaker extends; during idle periods, it retracts. This periodic action resolves the contradiction between sound output and appearance by separating these functions in time.
3Reliability
If a reciprocating telescopic speaker moves vertically downward first and then obliquely forward, then sound output position is optimized, but the motion mechanism and motion space become large, making the appearance not concise enough
Solution Approach 1:
The motion mechanism is segmented into two independent telescopic assemblies: one for vertical motion and one for horizontal motion. This segmentation allows each assembly to be optimized independently, reducing the overall complexity and size compared to a single complex oblique motion mechanism.
Solution Approach 2:
Instead of using a single oblique motion mechanism, the patent uses two perpendicular telescopic assemblies operating in different dimensions (vertical and horizontal). This dimensional decomposition simplifies each individual mechanism while achieving the same overall speaker positioning capability.
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 design enhances sound quality by optimizing speaker placement and reduces the visible footprint of the speakers, resulting in a more concise and aesthetically pleasing display device with improved motion stability and reliability.
Implementation Method 1
The first telescopic assembly is configured to drive the chassis, the first speaker, the second speaker and the second telescopic assembly to move back and forth in the first direction relative to the display backplate
Implementation Method 2
The second telescopic assembly is configured to drive the second speaker to move back and forth in the second direction relative to the display backplate and the first speaker
Data Source
AI summary
A flat-panel display device described herein includes a display screen; a display backplate; a chassis slidably arranged on the display backplate; a fixing support, a motion module arranged on the chassis, wherein the motion module includes a first telescopic assembly and a second telescopic assembly arranged on the fixing support; a first speaker arranged on the chassis; and a second speaker connected to the second telescopic assembly. The first telescopic assembly is matched with the display backplate and configured to drive the chassis, the first speaker, the second speaker and the second telescopic assembly to move back and forth in a first direction relative to the display backplate. The second telescopic assembly is configured to drive the second speaker to move back and forth in a second direction relative to the display backplate and the first speaker.