Foldable Display Wing Plate Structure for Hinge Stress Absorption
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Solution Overview
Problem
Existing flexible electronic devices with foldable displays face challenges in maintaining structural integrity and durability during folding and unfolding operations, particularly in the hinge area, which can lead to damage and reduced lifespan.
Innovation Solution
The electronic device incorporates a wing plate formed by laminating multiple sheets and thermoforming them, followed by cutting and washing to create a robust support structure that enhances the durability and flexibility of the hinge mechanism.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If a rigid housing structure is used to support the foldable display, then structural strength is improved, but flexibility and durability during folding operations deteriorate
Solution Approach 1:
The housing is divided into multiple segments including a first housing, a second housing, and a wing plate that can move relative to each other. This segmentation allows each part to perform its specific function - the main housings provide structural strength while the wing plate absorbs folding stress, resolving the contradiction between overall strength and folding durability.
Solution Approach 2:
The wing plate is designed as a dynamic component that moves between a first position (supporting the display assembly) and a second position (retracted). This dynamic movement allows the structure to adapt during folding operations, maintaining strength when needed and enabling flexibility during folding to improve durability.
2Strength
If the wing plate is made thicker to increase strength, then structural support is improved, but weight and device thickness increase
Solution Approach 1:
The wing plate is designed with non-uniform thickness, being thicker at the display assembly support portion where strength is most needed and thinner at other areas. This local quality approach provides maximum structural support exactly where required while minimizing overall weight and thickness.
Solution Approach 2:
The wing plate is formed by laminating multiple sheets together, creating a composite structure that provides high strength-to-weight ratio. This composite construction delivers the necessary structural support while keeping the weight lower than a solid thick plate would provide.
3Strength
If multiple sheets are laminated to form the wing plate, then structural strength and flexibility are improved, but manufacturing complexity increases
Solution Approach 1:
Multiple sheets are laminated together beforehand to form a complete wing plate assembly before the actual device assembly process. This preliminary action of pre-laminating the sheets simplifies the final assembly process and allows for better quality control of the composite structure.
Solution Approach 2:
The manufacturing process utilizes thermoforming to change the physical parameters of the laminated sheets, transforming them from flat layers into the three-dimensional wing plate structure. This parameter change approach allows complex shapes to be formed from simple laminated sheets, reducing overall manufacturing 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 wing plate provides enhanced structural support and flexibility, improving the durability and longevity of the device by absorbing stress and preventing damage during folding and unfolding operations.
Implementation Method 1
The wing plate provides enhanced structural support and flexibility, improving the durability and longevity of the device by absorbing stress and preventing damage during folding and unfolding operations.
Implementation Method 2
the wing plate is formed by laminating a plurality of sheets
Implementation Method 3
positioning the plurality of sheets in a mold and thermoforming the plurality of sheets
Data Source
AI summary
This electronic device includes a display having a first area, a second area, and a folding area which is between the first area and the second area, a housing having a first housing and a second housing overlapping the first area and the second area, a hinge which connects the first housing to the second housing, overlaps the folding area and is foldable together with the display, and sheets laminated to each other, between the hinge and the display, and defining a wing plate between the hinge and the display. The hinge which is folded includes the first area of the display and the second area of the display facing each other, and the hinge which is unfolded includes the first area of the display and the second area of the display not facing each other.