Display Terminal With Vibrating Sheet for Full-Screen Acoustic Emission
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Solution Overview
Problem
The overall screen-to-body ratio of display terminals is decreased due to the presence of a receiver, which is mounted on the display, leading to an unfavorable non-porous design.
Innovation Solution
A display terminal design incorporating a middle frame, a display module, a vibrator, and a vibrating sheet, where the vibrating sheet is connected to the display module and the middle frame, allowing for superimposed vibrations to increase the amplitude and volume of high-frequency sound emission, while reducing the probability of damage to the display module.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-generated harmful factors
If a receiver is mounted on the display terminal to provide sound output, then sound emission function is improved, but the screen-to-body ratio decreases due to the need to puncture the display
Solution Approach 1:
The patent combines the sound emission function with the existing display structure by using the display panel itself as the vibration membrane and integrating the vibrator within the display module boundaries. This merging eliminates the need for separate receiver openings while maintaining sound output capability, thereby preserving the screen-to-body ratio.
Solution Approach 2:
The display panel serves dual functions: visual display and acoustic emission. By making the display panel act as both the screen and the vibration membrane for sound output, the system achieves multi-functionality without requiring additional components that would reduce the screen-to-body ratio.
2Object-generated harmful factors
If a vibrator is added to drive the display module for sound emission, then sound volume is improved, but the complexity of the display structure increases
Solution Approach 1:
The vibrator is integrated within the existing display module structure rather than being added as a separate external component. This integration allows the vibrator to drive the display panel for sound emission while minimizing additional structural complexity.
Solution Approach 2:
A vibration transmission component is introduced as an intermediary between the vibrator and the display panel. This intermediary efficiently transmits vibrations from the vibrator to the display panel, improving sound volume while keeping the overall structure manageable through functional decomposition.
3Productivity
If the vibrator directly drives the display module, then driving efficiency is improved, but the probability of damage to the display module increases
Solution Approach 1:
A vibration transmission component is introduced as an intermediary between the vibrator and the display panel. This intermediary component distributes the mechanical stress from the vibrator across a larger area of the display panel, reducing localized stress concentrations that could cause damage while maintaining effective vibration transmission for sound emission.
Solution Approach 2:
The vibration transmission component acts as a cushioning element that protects the display panel from direct high-stress contact with the vibrator. By distributing and softening the mechanical impact beforehand, the system maintains driving efficiency while reducing the probability of display module damage.
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
The design enhances the screen-to-body ratio by increasing the vibration amplitude and sound volume, reducing power consumption, and minimizing damage to the display module through even force application and efficient vibration transfer.
Implementation Method 1
the vibrator and the vibrating sheet are configured to drive the display module to vibrate up and down. In this way, the vibrating sheet and the vibrator may have a same vibration phase, and therefore vibration of the vibrating sheet and the vibrator can be superimposed and then coupled to the display module, to increase, in a vibration process, amplitude of the display module that serves as a diaphragm and increase volume of a high-frequency sound emitted by the display terminal
Data Source
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Figure 3~4b
Figure 5a
AI summary
Embodiments of this application provide a display terminal, and relate to the field of display technologies, to resolve a problem that an overall screen-to-body ratio decreases due to a receiver disposed on a display terminal. The display terminal includes a middle frame, a display module, a vibrator, and at least one vibrating sheet. The display module is connected to the middle frame, and accommodation space is formed between the display module and the middle frame. At least a part of the vibrator is disposed in the accommodation space. The vibrator is connected to the display module or the middle frame. The vibrating sheet is located in the accommodation space. An upper surface of the vibrating sheet is connected to a lower surface of the display module. A lower surface of the vibrating sheet faces the middle frame. In a direction perpendicular to the upper surface of the vibrating sheet, the vibrator and the vibrating sheet are configured to drive the display module to vibrate up and down.