Flexible Screen Bending Mechanism for Thin Foldable Devices
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Solution Overview
Problem
The manufacturing of notebook computers with curved-surface displays is hindered by high costs and design challenges due to the need for a fixed curvature casing that complicates folding and unfolding, making it difficult to achieve a thin product design.
Innovation Solution
An electronic device with a flexible screen and a driving mechanism that includes a shaft, driving element, and linking assembly, allowing the second body to rotate and the flexible screen to switch between a bending and flat state, maintaining product thinness and user convenience.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If a fixed curvature casing is used for curved-surface display, then the visual immersion effect is improved, but the device complexity and manufacturing cost increase
Solution Approach 1:
The patent applies the dynamics principle by making the screen curvature adjustable rather than fixed. The display panel can dynamically change its bending state between curved and flat configurations, allowing the device to adapt its shape based on usage requirements. This resolves the contradiction by eliminating the need for complex fixed-curvature casings while maintaining the visual immersion effect when needed.
Solution Approach 2:
The patent changes the curvature parameter of the display panel from a fixed value to a variable parameter. By controlling the bending degree of the flexible screen through the driving mechanism, the system can adjust the curvature radius according to different usage scenarios, thereby achieving visual immersion without requiring complex predetermined curved casings.
2Shape
If a fixed curvature casing is designed according to curved-surface display, then the display curvature is maintained, but the manufacturing cost increases
Solution Approach 1:
The display curvature is transformed from a static fixed value to a dynamic adjustable parameter. The flexible display panel can be bent to different degrees and maintained in various curvature states without requiring specially designed fixed-curvature casings, significantly simplifying manufacturing processes and reducing costs.
Solution Approach 2:
The patent employs a flexible display panel that can be bent and folded, replacing the need for rigid curved casings. This flexible film technology allows the screen to achieve and maintain various curvature shapes through material elasticity and mechanical driving, eliminating the need for expensive custom-molded curved housing components.
3Illumination intensity
If the flexible screen is bent to provide surround field of vision, then the visual immersion is improved, but the device thickness increases
Solution Approach 1:
The display panel transitions from a static flat state to a dynamically adjustable curved state. When surround field of vision is needed, the screen bends to provide immersion; when not needed, it returns to a flat state, minimizing the device thickness. This dynamic state change allows the device to achieve thin profile and visual immersion at different times rather than simultaneously.
4Ease of operation
If the second body is made rotatable with respect to the first body, then the ease of operation is improved, but the device complexity increases
Solution Approach 1:
The driving mechanism serves multiple functions: it controls both the rotation of the second body relative to the first body and the bending of the flexible display panel. This multi-functionality reduces the need for separate mechanisms, thereby improving ease of operation while limiting the increase in overall device complexity.
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 enables the electronic device to maintain a thin profile while providing a surround field of vision for visual immersion, addressing the design and cost issues associated with fixed curvature displays.
Implementation Method 1
the driving element is rotated and moved with respect to the shaft to drive the linking assembly to move
Implementation Method 2
the linking assembly drives the flexible screen to bend
Data Source
AI summary
An electronic device includes a first body, a second body and at least one driving mechanism. The second body includes a casing and a flexible screen installed on the casing. The driving mechanism includes a shaft, a driving element and a linking assembly. The shaft has first and second connecting portions opposite to each other, the first connecting portion is fixed to the first body, and the second body is pivoted to the second connecting portion. The driving element is sleeved on the shaft and is located in the casing. The linking assembly is carried by the casing and covered by the flexible screen. When the second body is folded onto the first body, the flexible screen keeps flat. When the second body is unfolded with respect to the first body, the driving element is rotated and moved with respect to the shaft to drive the linking assembly to move, and the linking assembly drives the flexible screen to bend.