Foldable Display Device with Rotating Shafts and Sliding Components
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Solution Overview
Problem
Large-screen mobile terminals compromise portability, necessitating a display device that balances screen size with portability.
Innovation Solution
A display device design featuring a back housing with rotating shafts and sliding components, allowing the display screen to be folded into a Y-shaped containing space, enhancing portability while maintaining a large screen experience.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If the display screen size is increased, then the screen experience is improved, but the portability is reduced
Solution Approach 1:
The device is divided into multiple segments including a front housing, back housing, and middle frame that can rotate relative to each other. The display screen is segmented across these movable parts, allowing the large screen to be folded or rotated into a compact configuration for portability while maintaining full screen area when deployed
Solution Approach 2:
The patent implements dynamic structural elements including rotating shafts, sliding components, and movable middle frames that enable the display device to transition between extended (large screen) and folded (compact) states. This dynamic structure allows the device to adapt its form factor based on usage needs, resolving the contradiction between screen size and portability
2Length of moving object
If the display screen is folded into compact space, then portability is improved, but the structural complexity increases
Solution Approach 1:
The patent employs a nested structure where the middle frame with sliding components is disposed within the back housing, and the display screen spans across multiple nested layers including the front housing, middle frame, and back housing. This nesting allows compact folding while organizing the complexity into hierarchical layers
Solution Approach 2:
The middle frame acts as an intermediary component between the front housing and back housing, providing sliding components and rotating shafts that mediate the folding motion. This intermediary structure manages the mechanical complexity by centralizing the moving parts in a dedicated intermediate layer rather than distributing complexity throughout the entire device
Data Source
AI summary
A display device is disclosed and includes: a first back housing, wherein the first back housing includes a first rotating shaft and a second rotating shaft; a middle frame, wherein the middle frame includes a first middle frame connected to the first back housing by the first rotating shaft, a second middle frame connected to the first back housing by the second rotating shaft, and a plurality of sliding components disposed on lateral sides of the first middle frame and the second middle frame; a supporting plate, wherein the supporting plate includes a first supporting plate, a second supporting plate, a third supporting plate, and a fourth supporting plate which are connected to the sliding components; and a first display screen, wherein the first display screen is attached to the first supporting plate and the fourth supporting plate.