Middle Frame Assembly With Sliding Bevel Gears for Fold Alignment
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Solution Overview
Problem
Bendable display devices experience separation and staggering issues between the display panel and the middle frame assembly during folding due to differing bending paths, leading to the need for larger borders to accommodate these discrepancies.
Innovation Solution
A middle frame assembly with a rotation shaft, first and second sliding middle frames, and transmission components including bevel gears and transmission parts that allow for synchronized sliding and rotation to compensate for differing bending paths, ensuring the display panel and frame assembly align without staggering, enabling borderless design.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If the display panel is fixed on the middle frame assembly, then the structure is simple and easy to manufacture, but the display panel and middle frame assembly will be staggered when bent, resulting in separation
Solution Approach 1:
The middle frame assembly incorporates sliding components that allow dynamic adjustment during folding. The middle frame body can slide relative to the first and second middle frames along guiding grooves, enabling the structure to adapt to different bending states and maintain alignment between the display panel and frame assembly.
Solution Approach 2:
The patent introduces intermediate components including sliding blocks, guiding grooves, and elastic components that act as mediators between the rigid middle frame assembly and the flexible display panel. These intermediaries absorb the differential displacement during bending and prevent direct separation.
2Reliability
If larger borders are added to accommodate bending path differences, then the alignment issue is resolved, but the device size increases and borderless design is compromised
Solution Approach 1:
The sliding mechanism allows the middle frame assembly to dynamically adjust its position during folding, compensating for the bending path difference without requiring additional border space. The elastic components provide flexible compensation within a compact structure.
3Strength
If the middle frame assembly follows a different bending path than the display panel, then the structural integrity is maintained, but staggering and separation occur
Solution Approach 1:
The patent creates a dynamic coupling between components with different bending paths through sliding connections. The middle frame body slides along guiding grooves to accommodate the differential motion, maintaining both structural integrity and alignment stability throughout the folding process.
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 ensures alignment of the display panel and frame assembly during folding, allowing for a borderless display device by compensating for varying bending paths, thus eliminating the need for additional border space.
Implementation Method 1
a first driving bevel gear connected to the first middle frame body and rotatable along the first axial direction under the action of rotation of the first middle frame body relative to the rotation shaft component; a second driving bevel gear connected to the first middle frame body and rotatable along the first axial direction under the action of rotation of the first middle frame body relative to the rotation shaft component
Data Source
AI summary
A middle frame assembly and a display device. The middle frame assembly includes a rotating shaft component, a first middle frame body, a first sliding middle frame, and a first transmission component. The first transmission component includes a first driving bevel gear, a second driving bevel gear, a first driven bevel gear, and a transmission part. The first driving bevel gear and the second driving bevel gear can rotate in a first axial direction under the action of rotation of the first middle frame body relative to the rotating shaft component. A circumference of a pitch circle of the second driving bevel gear is greater than that of the first driving bevel gear. The first driven bevel gear is configured to mesh with the first driving bevel gear in a first state and with the second driving bevel gear in a second state.