Foldable Mobile Terminal Hinge and Belt Mechanism
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Solution Overview
Problem
Conventional foldable mobile terminals with flexible screens face issues of increased thickness and compromised user experience due to folding designs, which result in black lines in the folded zone.
Innovation Solution
A foldable mobile terminal design featuring a housing panel, flexible display, side plate, primary back plate, support hinge storage case, hinge operation buttons, and a display pulling belt made of elastic material, allowing the flexible display to be easily adjusted and supported by a support hinge, reducing thickness and enhancing operability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If the mobile terminal adopts a folding design to make the mobile terminal folded up, then the flexible screen can be compacted, but the thickness of the mobile terminal greatly increases
Solution Approach 1:
The support hinge is divided into multiple hinge units (first hinge unit, second hinge unit, third hinge unit) that can independently fold and support different sections of the flexible screen. This segmentation allows the screen to be folded into compact shapes (U-shape, Z-shape) while distributing the structural load, preventing excessive thickness accumulation at any single point.
Solution Approach 2:
Instead of simple up-folding that increases thickness, the patent introduces multi-axis folding capabilities where the flexible screen can fold along multiple dimensions (first folding line, second folding line, third folding line). This enables the screen to achieve compact storage in three-dimensional space without proportionally increasing the terminal's thickness.
2Adaptability or versatility
If the mobile terminal adopts a folding design, then the flexible screen can be folded, but black lines appear in the folded zone compromising user experience
Solution Approach 1:
The patent applies different structural qualities to different zones of the flexible screen. The folded zones are equipped with specific hinge units and support structures tailored to their folding requirements, while the display areas maintain their original flat quality. This localized structural differentiation ensures that folding mechanisms are precisely positioned to avoid creating black lines or display defects in the visible areas.
Solution Approach 2:
The support hinge units are pre-positioned and structured to provide support before folding occurs. The first support plate, second support plate, and third support plate are arranged to maintain proper spacing and support the flexible screen throughout the folding process, preventing excessive stress concentration that would cause black lines or permanent damage to the display.
3Ease of operation
If the flexible display is extended and fixedly connected to the display pulling belt, then the display can be pulled out, but the structure becomes more complex
Solution Approach 1:
The display pulling belt is designed to automatically pull the flexible display out when the hinge units are folded, without requiring additional motors or complex actuation mechanisms. The elastic deformation of the belt during folding naturally creates the pulling force needed to extend the display, making the system self-regulating and reducing overall structural complexity.
Solution Approach 2:
The patent combines multiple functions into the hinge units. Each hinge unit not only provides the folding mechanism but also serves as a support structure (through the support plates), a positioning mechanism (through the operation buttons), and a trigger for display extension (through the connection to the pulling belt). This functional merging reduces the number of separate components needed.
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 allows for easy size adjustment of the flexible display, decreases the terminal's thickness, and improves user experience by maintaining a flat and even display state while supporting the flexible screen effectively.
Implementation Method 1
a display pulling belt made of elastic material, allowing the flexible display to be easily adjusted
Data Source
AI summary
A foldable mobile terminal with a flexible screen is provided in the present disclosure. The foldable mobile terminal with the flexible screen comprises a housing panel, a flexible display, a side plate, a primary back plate, an extending back plate, a support hinge storage case, a plurality of hinge operation buttons, a display pulling belt storage case, and a display pulling belt. A support hinge is disposed inside the support hinge storage case, and one end of the display pulling belt is fixedly connected to the flexible display extending over the support hinge storage case.