Inner-Folding Flexible Screen Linkage for Narrow-Bezel Protection
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Solution Overview
Problem
Conventional inner folding flexible screen mobile terminals face challenges in protecting the flexible screen when folded, which hinders the design of a narrow frame structure due to the slidable cooperation between screen parts and housing.
Innovation Solution
A motion mechanism with a middle support structure, synchronization mechanism, cranks, connecting plates, and movable support plates that allow the flexible screen to fold while reducing stress on the screen and enabling a narrow frame design by moving housings and screen together, incorporating slidable guide structures and resistance-enhancing reed pipes for controlled movement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the left and right parts of the flexible screen terminal and the housing are in a slidable cooperation state to protect the flexible screen during folding, then the protection of the flexible screen is improved, but the frame design becomes wider and more complex
Solution Approach 1:
The patent applies dynamic mechanism transformation by converting the static slidable cooperation into a dynamic crank-connecting plate mechanism. The cranks rotate around rotation centers positioned above the flexible screen support surface, transforming the sliding motion into a rotational-synchronized motion that maintains screen protection while reducing frame width requirements.
Solution Approach 2:
The patent introduces connecting plates as intermediary elements between the cranks and the housing. These connecting plates transmit the rotational motion of the cranks to the housing, enabling synchronized movement that protects the flexible screen during folding without requiring the housing itself to slide, thus simplifying the overall frame design.
2Reliability
If the left and right parts of the flexible screen terminal and the housing are in a slidable cooperation state, then the flexible screen is protected when folded, but the frame width increases
Solution Approach 1:
By positioning the rotation centers of the cranks above the flexible screen support surface and close to or at the height of the neutral layer, the mechanism creates a rotational motion that naturally limits the lateral displacement of the housing. This dynamic approach reduces the required frame width compared to static slidable cooperation while maintaining screen protection.
Solution Approach 2:
The patent transitions from one-dimensional sliding motion to two-dimensional rotational motion by introducing crank mechanisms with rotation centers positioned vertically above the screen support surface. This dimensional change allows the housing to move in a controlled arc rather than requiring wide lateral clearance, thus reducing frame width.
Data Source
AI summary
A motion mechanism applied to an inner folding flexible screen terminal and an inner folding flexible screen terminal are disclosed. The motion mechanism includes left and right cranks and left and right connecting plates. The left and right cranks are both rotatably connected to a middle support structure, and the left and right connecting plates are respectively rotatably connected to the left and right cranks and slidably connected to left and right support frames. The left and right connecting plates are respectively connected to left and right housings of the flexible screen terminal. The motion mechanism has a simple structure and reliable movements. When the flexible screen is bent, the housings and the flexible screen move toward the far side together. In addition, the housings do not need to be provided with overly wide frames at two ends for coverage, which may facilitate a narrow frame design.