Display Screen Tension Mounting for Flatness and Acoustic Performance
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Solution Overview
Problem
Large-size display screens with ultrashort focus projection in electronic devices face challenges in maintaining flatness due to conflicting requirements of vibration sound-generating performance and structural rigidity, leading to geometric distortion of images, especially under temperature and humidity changes.
Innovation Solution
An electronic device design that includes a display screen with a sound-generating substrate and a mounting structure providing tension through a screen frame and tension springs, where the display screen extends beyond the frame edges to maintain flatness and counteract thermal expansion-induced deformations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the display screen uses light and thin materials for sound generation, then acoustic performance is improved, but the screen becomes prone to deformation and cannot maintain flatness
Solution Approach 1:
The patent applies dynamic tension adjustment mechanisms that can adaptively modify the tension force applied to the display screen based on environmental conditions. The mounting structure includes adjustable components that allow the tension to be optimized for both acoustic performance and flatness maintenance under varying temperature and humidity conditions.
Solution Approach 2:
The patent changes the physical parameters of the mounting structure by introducing adjustable tension mechanisms that can modify the mechanical stress applied to the display screen. This allows the system to optimize the balance between maintaining flatness and enabling vibration for sound generation by adjusting tension parameters in response to environmental changes.
2Stability of the object's composition
If the display screen increases thickness or bending strength to maintain flatness, then structural stability is improved, but vibration sound-generating performance deteriorates
Solution Approach 1:
The patent applies preliminary tensioning to the display screen through the mounting structure before environmental changes occur. This pre-applied tension creates a baseline state that helps the screen resist deformation from thermal expansion and humidity changes, allowing thin materials to maintain flatness without requiring increased thickness or bending strength.
Solution Approach 2:
The mounting structure acts as an intermediary between the display screen and the environment. It provides a controlled mechanical interface that applies and regulates tension forces, mediating the interaction between the thin display screen and environmental factors like temperature and humidity changes, thereby protecting the screen from deformation.
3Ease of manufacture
If wrapping-type mounting structure is used for large-size display screens, then mounting simplicity is improved, but the screen cannot maintain flatness under temperature and humidity changes
Solution Approach 1:
The patent transforms the static wrapping-type mounting structure into a dynamic system with adjustable tension capabilities. The mounting structure includes mechanisms that can actively adjust and maintain optimal tension levels on the display screen, enabling it to compensate for thermal expansion and humidity-induced deformations while maintaining mounting simplicity.
Solution Approach 2:
The patent segments the mounting structure into multiple independent tensioning points and adjustable components distributed across the screen perimeter. This segmentation allows for localized adjustment of tension forces to compensate for non-uniform environmental effects on large-size display screens, maintaining flatness across the entire surface.
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 solution effectively keeps the display screen flat, preventing geometric distortion and ensuring good acoustic performance by providing tensile forces through the mounting structure, even under environmental changes.
Implementation Method 1
the at least one electromagnetic driver, disposed on a second side of the display screen, and configured to receive the electrical signal sent from the host and drive the display screen to generate sound via vibration according to the electrical signal
Implementation Method 2
at least one mounting structure, disposed on the second side of the display screen; where the mounting structure has a first end connected with the screen frame and a second end connected with the display screen extending toward the second side, and is configured to keep the display screen flat
Data Source
AI summary
The present application provides an electronic device. After a display screen of the electronic device is attached to a screen frame, the display screen extends beyond the screen frame at at least two opposite edges and extends toward the second side of the display screen by taking the screen frame as an axis, and then the display screen is mounted by a mounting structure connected with the screen frame, so that the display screen is kept flat by a tensile force provided to the display screen via the mounting structure.