Display Device Bottom Chassis Protrusions for Speaker Enclosures
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Solution Overview
Problem
Conventional display devices struggle to output sounds in different ranges simultaneously without sound overlap, limiting their audio performance and versatility.
Innovation Solution
A display device design featuring a bottom chassis with protrusions and enclosures for speaker units, where each speaker unit includes a piezoelectric element and electrodes, allowing for independent sound output across varying areas, and optionally using a light guide plate and OLED display panel with a thin film encapsulation layer.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple speaker units are used to output sounds in different ranges simultaneously, then audio performance and versatility are improved, but device complexity increases
Solution Approach 1:
The audio output function is segmented into multiple speaker units, each responsible for different sound ranges (e.g., bass, mid-range, treble). Each speaker unit is independently controlled and positioned in separate enclosures within the bottom chassis, allowing simultaneous output of different frequency ranges without sound overlap.
Solution Approach 2:
The speaker units are arranged in a vertical dimension within the bottom chassis enclosures rather than spreading them horizontally across the display surface. This vertical stacking in enclosed spaces allows multiple speakers to coexist without increasing the horizontal footprint, managing complexity through spatial reorganization.
2Object-generated harmful factors
If speaker units are placed in protrusions with enclosures, then sound overlap is reduced, but manufacturing complexity increases
Solution Approach 1:
The bottom chassis is segmented into multiple protrusions, each containing its own enclosure for a specific speaker unit. This physical segmentation isolates sound waves from different frequency ranges, preventing sound overlap and interference between adjacent speaker units.
Solution Approach 2:
The protrusion-enclosure structure serves multiple functions simultaneously: it provides mechanical support for speaker units, creates acoustic isolation chambers to prevent sound mixing, and maintains the overall structural integrity of the bottom chassis. This multi-functionality reduces the need for additional separate 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
Enables the display device to output sounds in different ranges simultaneously with reduced sound mixture, enhancing audio performance and flexibility.
Implementation Method 1
The speaker unit may include a lower electrode, an upper electrode opposite the lower electrode, and a piezoelectric element between the lower and upper electrodes. The piezoelectric element may vibrate in response to voltage applied to the upper and lower electrodes so that the speaker unit may output sounds.
Data Source
AI summary
A display device may include a display panel, a bottom chassis configured to accommodate the display panel, and a plurality of speaker units electrically connected to the display panel and configured to output sounds. The bottom chassis may include a plurality of protrusions protruding downward and in which an enclosure is defined, and also may include a groove that is defined between the protrusions, an opening that is defined by the protrusions, or an elastic member configured to couple the protrusions. The respective speaker units may be disposed in respective protrusions.